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PROCEDURE FOR WRITING A
SYNOPSIS PAGE
Sundeep Talwar
COMPONENTS
!  Title Page
!  Body
!  Work Cited
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TITLE PAGE
!  Title of the Topic
!  Your Name
!  Class Name, Number, and Section
!  Date
BODY
!  The purpose of the synopsis page is to relate a
topic learned in our microbiology class and relate
it to an individual’s daily activities.
!  Please consider that the target audience is a lay
individual who has minimal foundational biology.
!  So please explain complex terms and concepts.
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EXAMPLE TOPIC
!  Why brushing teeth before bed is essential in
preventing dental carries?
!  Explain how the oral flora ferments sugar stuck
between teeth and in the process releases acid.
!  Fermentation
!  The acid breaks down the enamel.
!  Name some of the bacterial species commonly found
in the oral cavity that are known to ferment sugars.
!  Therefore, microbes are responsible for causing tooth
pain and bad breath.
WORK CITED
!  Please title the page work cited
!  Please cite your sources in APA format, on the work
cited page.
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THINGS TO CONSIDER
! Please write only in the third person.
! Use proper grammar and spelling.
! Use a 12 size font – Times Roman. Can be
single spaced or double, must be atleast a
page long.
THINGS TO CONSIDER
! Please cite properly and don’t plagiarize.
If you need help citing ask!
!  If any part of the synopsis is plagiarized
or not properly cited, it will receive a
grade of zero.
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GRADING SCALE
!  The title page and work cited are each worth 5
points.
!  The body of the synopsis will be 40 points and
will be graded on grammar and content.
!  Content should be focused on being able to
accurately relate microbiology concepts with
daily life.
53
4
Learning and Situational/
Environmental Influences
on Criminal Behavior
Urilux/iStock/Getty Images Plus
Learning Outcomes
After reading this chapter, you should be able to
• Analyze the early theories of behavior and their influence on
the study of learning and criminal
behavior.
• Discuss why social learning theory is fundamental to the
understanding of criminal behavior.
• Explain the theory of differential association.
• Discuss why social cognitive theory is fundamental to
understanding criminal behavior.
• Summarize situational/environmental influences and their
impact on behavior.
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54
Section 4.1 Introduction
Introductory Case Study: The Hillside Strangler
The Hillside Strangler terrorized Los Angeles during 1977 and
1978, when at least 10 women
were kidnapped, raped, tortured, and murdered over a 4-month
period. The defendants in the
case were cousins Angelo Buono and Kenneth Bianchi.
Although both were psychopathic and
sexually sadistic, there was also an interesting family dynamic
to their relationship. Buono was
nearly 20 years older than his cousin, more socially adept, and
the dominant figure in their rela-
tionship. Buono had an extensive criminal history and kept
women involved in prostitution and
sexual slavery. He exposed his younger cousin to these
behaviors, and soon their pimping and
sexual appetites escalated to murder. The two quarreled after
the initial police investigation,
and Bianchi fled California shortly after the Los Angeles
murders and committed an additional
two murders in the state of Washington before finally getting
arrested in 1979. Both men were
sentenced to life in prison.
As you read this chapter, consider the following questions
regarding this case:
1. Do you think Bianchi would have committed these murders
had it not been for
Buono’s influence?
2. Consider social learning theory with regard to Bianchi
committing two more crimes
without Buono. Which of the four factors of social learning
theory can be applied?
3. What situational factors do you believe may have influenced
Buono and Bianchi to
commit those horrible crimes?
4.1 Introduction
The criminal psychology field has invested heavily in
attempting to understand the causes of
criminal behavior, such as the crimes committed in the Hillside
Strangler example. Through-
out the history of the field, theorists have asserted that human
behavior reflects forces of
nature or forces of nurture, depending on one’s perspective.
Today it is almost universally
recognized that both individual and environmental factors are
important for understanding
behavior, including criminal behavior. Moreover, it is largely
recognized that individual and
environmental factors often interact with and mutually reinforce
each other.
Different theoretical models describe the relationship between
variables and outcomes,
and researchers have concluded that there is no single path to
criminal behavior. This chap-
ter explores various theories that help us understand the
influences on behavior, as well as
situational/environmental influences and their relationship to
criminal behavior. We will
begin by discussing some of the theories of learned behavior
and later will explore how
situational factors may influence criminal behavior.
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55
Section 4.2 Theories of Behaviorism
4.2 Theories of Behaviorism
Though research on the stimuli for and consequences of
behavior hasn’t focused on criminal
behavior specifically, the research helps in understanding the
causes of criminal behavior
and why individuals learn these types of behaviors. Behaviorism
is a social learning–based
theory that suggests behaviors are the product of conditioning
that occurs as an individual
interacts with the environment. Behaviorism rejects the notion
that internal, person-specific
factors (e.g., emotional expression, self-regulation, intelligence)
are the drivers of behavior.
As a result, individual-level constructs are minimized or
excluded in favor of learning from
one’s environment.
However, before the behaviorist school of thought was
officially coined, several psychologists
and criminologists developed theories of learned behavior to
describe the “study of circum-
stances under which a response and a cue stimulus become
connected” (Miller & Dollard,
1941, p. 1). These theories are crucial to understanding the
basis of behavior.
Pavlov’s Classical Conditioning Theory
Ivan Pavlov (1849–1936) is perhaps best known for his theory
of classical conditioning,
which is said to occur when two stimuli are linked together to
produce a new learned response
in a person or an animal. Pavlov conducted studies in which he
measured and conditioned
salivation (and other physiological responses) in dogs to
respond to neutral stimuli. His work
provided a basis for later behaviorists, who focused on the
consequences of behavior (rather
than the eliciting stimuli).
Thorndike’s Law of Effect
Other early studies of learning were conducted by Edward
Thorndike (1874–1949), who
argued that the consequences that follow behavior help learning.
Thorndike developed the
law of effect, which states that the consequences of behavior
serve to strengthen or weaken
its continuation. A baby who is fed a bottle of milk every time
he or she cries (the behavior)
will continue to cry when he or she feels hungry so that the
parent will produce the bottle (the
consequence). In other words, the consequence, because it is
satisfying or pleasurable, serves
to strengthen the crying behavior. To put it another way, when
the response to a stimulus is
positive, the connection between behavior and response is
strengthened; when the response
to the stimulus results in pain, the connection is weakened.
Watson’s Theory of Behavior
Though Pavlov and Thorndike began exploring learning theories
before him, John Watson
(1878–1958) was the founder of the behaviorism school in
psychology, initiating the movement
in 1913. He showed that the idea of classical conditioning could
be applied to humans, via the
famous and controversial Little Albert experiment. Visit the
following link to learn more about
this experiment: https://www.simplypsychology.org/classical-
conditioning.html#little.
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https://www.simplypsychology.org/classical-
conditioning.html#little
56
Section 4.2 Theories of Behaviorism
One of the most famous and frequently cited quotations in
psychology comes from Watson
(1930):
Give me a dozen healthy infants, well-formed, and my own
specified world to
bring them up in and I’ll guarantee to take any one at random
and train him to
become any type of specialist I might select—doctor, lawyer,
artist, merchant-
chief, and, yes, even beggar-man and thief, regardless of his
talents, penchants,
tendencies, abilities, vocations, and race of his ancestors. (p.
82)
An important legacy of behaviorism for understand-
ing crime is a blank slate conceptualization of human
behavior; Watson asserted this concept. The idea of
a blank slate, or tabula rasa, which is attributed to
the philosophers John Locke, Jean-Jacques Rous-
seau, and John Dryden, is that people are born basi-
cally the same in terms of their innate abilities and
that experience molds their behaviors. The blank
slate is an optimistic worldview contrasting the idea
of widespread individual variation. The implica-
tion for understanding crime is that learning-based
theoretical approaches generally view the criminal
offender as an innately blank slate that is then cor-
rupted by negative or crime-inducing environmen-
tal features and personal connections.
Skinner’s Operant Conditioning
B. F. Skinner (1904–1990) was a psychologist widely known for
his research on operant con-
ditioning, a learning theory that suggests behavior is produced
and modified based on the
reinforcements and punishments it elicits. Over time, a
particular behavior is paired with
specific consequences that either strengthen or weaken the
behavior. There are four types
of reinforcement related to operant conditioning: positive
reinforcement, negative reinforce-
ment, positive punishment, and negative punishment.
Positive reinforcement is a type of reinforcement that involves a
behavioral response fol-
lowed by a rewarding or reinforcing stimulus (also known as a
“reinforcer”). The rewarding
stimulus serves to strengthen the behavioral response. For
instance, children who display
good behavior (response) are likely to receive praise, warmth,
and affection (reinforcers) from
their parents, which serves to further encourage the good
behavior. Negative reinforcement
is a type of reinforcement that involves the strengthening of a
behavioral response through
the removal of an aversive stimulus. For instance, a child who
receives a stern lecture from his
or her parents for neglecting chores can end the lecturing
(aversive stimulus) by performing
the chores (response) in the first place.
In positive punishment, a particular behavior or response is
decreased or weakened when it
is followed by an aversive stimulus. A stern stare from parents
(aversive stimulus) will often
Jacek_Sopotnicki/iStock/Getty Images Plus
Learning-based theories assert that we
start as a blank slate when we’re born
and learn negative behaviors from our
environments as we develop.
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57
Section 4.3 Social Learning Theory
immediately stop the problem behavior (response) that a child is
exhibiting. In negative pun-
ishment, a behavior or response is weakened through the
removal of a valued stimulus. For
example, if a parent prohibits the use of a valued item (such as
a smartphone) because his
or her child broke curfew, the child may learn not to break
curfew again. The removal of the
smartphone (valued stimulus) will decrease the likelihood that
the child will continue to stay
out late (behavior). See Table 4.1 for further examples of
reinforcement and punishment.
Table 4.1: Examples of reinforcement and punishment
Stimulus Operant response
Consequence
(reinforcement or
punishment) Implications
Teacher promises
a sticker for good
behavior in class.
Student behaves well
in class.
Positive
reinforcement.
Student receives a
sticker.
Student is more likely
to behave well in future
classes.
Teacher ridicules
wrong answers spoken
aloud.
Student answers only
when sure of being
right.
Negative
reinforcement.
Student is not ridiculed.
Student is more likely
to answer only when
sure of being right.
Teacher presents a
lecture.
Student talks to
neighbor.
Positive punishment.
Teacher has student
clean cupboards.
Student is less likely to
talk during a lecture.
Teacher promises field
trip for good behavior.
Student misbehaves. Negative punishment.
Privilege of going on
field trip is withdrawn.
Student is less likely
to misbehave before a
field trip.
Operant conditioning played an important role in updating
criminological explanations of
crime that used social learning theory, particularly those
relating to the role of reinforcement
in perpetuating behavior.
Given these basic definitions, we can see the parallels between
behavioral theory and the
criminal justice process. For many people who live their entire
lives without an arrest, the
mere potential threat of punishment is sufficient to deter
criminal behavior. This is known
as deterrence. For serious criminal offenders, unfortunately, the
threat of punishment does
little to discourage subsequent criminal acts.
4.3 Social Learning Theory
Among conventional wisdom and scholarly researchers, social
learning theory is a fundamen-
tal part of understanding crime. It is so significantly related to
crime that psychologists and
sociologists alike made social learning theory a central part of
their theoretical platforms.
Few other conceptual areas can claim such universality.
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58
Section 4.3 Social Learning Theory
Foundations of Social Learning Theory
Social learning theory suggests that behavior is motivated by
the effects it produces and is
largely based on mimicry of behaviors to which one is
frequently exposed. It gives credibility
to the common saying that “birds of a feather flock together,”
which means that individuals
generally behave like those with whom they associate.
The main reason the theory is popular is that so much of
childhood is based on learning.
In the home, children are continuously exposed to behaviors and
verbal instruction from
their parents and siblings about the appropriateness of various
behaviors. Although parents
often do their best to intentionally inculcate prosocial behaviors
and values in their children,
much of this inculcation occurs in an indirect, almost
subconscious way. (Remember that the
terms prosocial and antisocial do not mean extroverted or
introverted. Prosocial means that a
person’s behavior is oriented toward making a positive
contribution to society; for example,
picking up litter in a local park. Antisocial means that a
person’s behavior does not conform
to the norms, rules, and laws of an orderly society. An example
is dumping litter in the park
instead of in the trash receptacle, an offense that may result in a
fine or criminal prosecution,
depending on what was dumped.) What this means is that much
of learning occurs by obser-
vation and exposure to situational contexts.
For instance, parents who work each day, prepare their clothing
and lunch the night before
going to work, leave early in the morning to arrive on time for
work, invest their time and
energy in productive labor in exchange for income and benefits,
and generally invest in work
as a social institution are displaying—each and every day—what
it means to be a functioning
member of society. Although this message may or may not be
internalized by their children,
because the parents are actively displaying good behavior, the
children are more likely to
learn. Learning occurs directly and indirectly, from observation
of and interaction with role
models who perform the behavior to be learned.
The identical process occurs for negative behaviors. Consider
parents who cannot hold down
a job for more than a few weeks at a time. Being unable or
unwilling to meet the responsibili-
ties of their jobs, they either get fired or quit. Once at home,
these parents vehemently cri-
tique their former boss, lament their unemployment, and engage
in unhealthy, unproductive
behaviors (e.g., substance abuse, drug selling, gam-
bling) to quell their boredom and meet the financial
needs of their family. Although these parents might
simultaneously praise the value and importance of
work, their behavior tells another story, and their
children are exposed to negative behaviors that
are internalized and unfortunately mimicked. This
scenario can be made much worse. The parents
can abuse or neglect their children, introduce them
to drugs or alcohol, engage in violence within the
home, or commit any combination of these crimes.
These behaviors are observed, internalized, and
unfortunately learned.
Parents act as socialization agents, or people who
contribute to socialization—but so do teachers,
coworkers, and peers, or persons of a similar status
Digital Vision/Thinkstock
According to social learning theory,
much of learning occurs by observation
and exposure to situational contexts,
including influence from peers.
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59
Section 4.3 Social Learning Theory
in an individual’s social environment. Whenever there is
exposure to other individuals, there
are opportunities to learn and imitate. Indeed, the very function
of school is to instill the
knowledge and skills that are needed for survival in a particular
society. The preponderance
of learning that occurs in our lives is positive; however, when
exposure to antisocial individu-
als and criminogenic settings occurs, there are also
opportunities to adopt certain negative
behaviors.
In the psychological study of crime, social learning theory is
unique in that it was developed
and influenced by both psychologists and sociologists. And
within American criminology, the
social learning approach has served as a core method of
understanding and explaining crime.
Even though the term social learning theory was originally
coined and developed by Albert
Bandura while he was researching and studying aggression (we
will wait to discuss Bandura’s
findings until Chapter 6), the theory has become mostly
associated with Ronald Akers. Crimi-
nologists Akers and Gary Jensen (2006), two of the leading
proponents of social learning
theory, explain that it is
a general theory that offers an explanation of the acquisition,
maintenance,
and change in criminal and deviant behavior that embraces
social, non-
social, and cultural factors operating both to motivate and
control criminal
behavior and both to promote and undermine conformity. (p. 38)
Akers’s Differential Association-Reinforcement Theory
Akers developed his differential association-reinforcement
theory based on sociologist
Edwin Sutherland’s differential theory of crime, Skinner’s
operant conditioning theory, and
Bandura’s social learning theory. Essentially, Akers argues that
“criminal behavior is learned
through both social and nonsocial reinforcements and that most
learning of criminal behav-
ior occurs in social interactions with other people” (as cited in
Bernard, n.d., para. 3). Akers
outlined the four core elements in his theory: differential
association, definitions, differential
reinforcement, and imitation.
Differential Association
Differential association refers to the varying associations or
friendships and acquaintance-
ships that individuals directly and indirectly have with others.
(Differential is a term that sug-
gests there are differences between individuals.)
Although differential association is a classic in sociological
criminology, it is clearly a social
learning theory. Sutherland’s work is important because it is an
example of the ways that
scientific disciplines borrow concepts from one another and
reinvent them with different
language. Subsequent social learning approaches are more
rooted in psychology.
Sutherland’s theory contains nine principles:
1. Delinquent behavior is learned, not inherited.
2. Delinquent behavior is learned through interaction with
others by way of verbal or
nonverbal communication.
3. Learning occurs in intimate groups; it is in small, face-to-
face gatherings that chil-
dren learn to commit crime.
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60
Section 4.3 Social Learning Theory
4. In intimate groups, children learn
techniques for committing crime,
as well as the appropriate motives,
attitudes, and rationalizations. The
learning process involves expo-
sure not only to the techniques of
committing offenses but also to the
attitudes or rationalizations that
justify those acts.
5. The specific direction of motives
and drives is learned from defini-
tions of the legal code as being
favorable or unfavorable. (The term
definitions here refers to attitudes.)
6. A juvenile becomes delinquent due
to an excess of definitions favorable
to the violation of law over defini-
tions unfavorable to the violation of law. This sixth principle is
the core of the theory.
Definitions favorable to the violation of law can be learned
from both criminal and
noncriminal people.
7. The tendency toward delinquency will be affected by the
frequency, duration, prior-
ity, and intensity of learning experiences. The longer, earlier,
more intensely, and
more frequently youths are exposed to both positive and
negative attitudes about
delinquency, the more likely it is that they will be influenced.
8. Learning delinquent behavior involves the same mechanisms
involved in any other
learning. While the content of what is learned is different, the
process for learning
any behavior is the same.
9. Criminal behavior and noncriminal behavior are expressions
of the same needs and
values. In other words, the goals of delinquents and
nondelinquents are similar. What
differs are the means they use to pursue their goals.
In the case of differential association, some individuals
associate with many criminals, some
associate with criminals occasionally, and some never associate
with criminals. These friend-
ships and acquaintanceships involve behaviors and the
expression of values and beliefs that
support the behaviors. Importantly, differential association also
includes indirect identi-
fication with reference groups outside of one’s immediate
contact, such as an individual’s
involvement in an organization or online chat group. Although
the person does not physically
have access to these associates, there is nevertheless the
transmission and learning of values,
beliefs, and behaviors.
Jupiterimages/liquidlibrary/Getty Images Plus
Sutherland posited that an individual will
learn criminal behaviors and rationalizations
for such behaviors from his or her intimate
groups, such as close friends.
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61
Section 4.3 Social Learning Theory
Researchers theorize that differential association has greater
effects on behavior depending
on the duration, frequency, intensity, and priority of the
associations (see Figure 4.1). How
the duration, frequency, intensity, and priority of these
associations predicts conventional or
criminal behavior depends on the characteristics of the persons
with whom one associates.
For example, Schreck, Fisher, and Miller (2004) examined the
relationship between friend-
ship networks and violent victimization among respondents
from the National Longitudinal
Study of Adolescent Health. They found that adolescents and
young adults who were popular
and well connected in conventional friendship networks were
very unlikely to be victims of
a violent crime. A similar effect, albeit in the opposite
direction, was found among those who
were popular, well-connected members of antisocial friendship
networks: They were more
likely to be violently victimized.
See Spotlight: Research on Differential Association in the
Workplace to explore how coworkers
and peers can have an effect on an individual’s work ethic.
Figure 4.1: The parameters of differential association
Relationship parameters such as duration, intensity, priority,
and frequency can help determine the
effect differential association will have on an individual’s
behavior.
Frequency Intensity
Priority
Duration
Differential
association
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62
Section 4.3 Social Learning Theory
Definitions
Definitions refer to an individual’s attitudes,
orientation, and rationalizations that charac-
terize the person’s behavior and cast him or
her in moral or value-based terms. Put sim-
ply, definitions are a person’s beliefs about or
moral evaluation of his or her behavior. Con-
sider this brief example: People who are part
of a “partying” friendship network like to drink
alcohol and use illegal drugs. When an indi-
vidual is with these substance-abusing friends,
he or she gives little thought or consideration
to the moral violations inherent in illegal drug
use. However, the same individual would likely
not engage in these behaviors or approve of
them if they were taking place around that
person’s parents. The difference in these situ-
ations relates to the definitions that the indi-
vidual produces about his or her behavior.
There are three bases of definitions: conventional beliefs,
positive beliefs, and neutralizing
beliefs. Conventional beliefs are those that are unfavorable
toward committing crime and
favorable toward conformity. Positive beliefs are definitions by
which an individual believes
that committing crime is permissible. Neutralizing beliefs are
definitions by which an indi-
vidual justifies or provides excuses for why antisocial behavior
is permissible (Akers & Jen-
nings, 2009).
Spotlight: Research on Differential Association in the
Workplace
Research focusing on the work setting and delinquency
demonstrates the value of differential
association. For instance, Gibson and Wright (2001) analyzed
data from the Tri-Cities Adoles-
cent Employment Survey, which is a survey of students from
eight high schools in northeastern
Tennessee. They found that workplace delinquency—which
included behaviors such as lying
on one’s time card about the number of hours worked,
shortchanging customers, giving away
goods or services for free, theft, using drugs or alcohol while on
duty, and helping coworkers
steal employers’ property—was predicted by coworker
delinquency.
On the other hand, coworkers can exert a positive influence on
their colleagues. Utilizing data
from the National Youth Survey, Wright and Cullen (2004)
found that association with proso-
cial coworkers helps dismantle delinquent peer networks and
results in reductions in delin-
quency and drug use.
Taken together, these findings indicate that differential
association with bad or good influ-
ences at work has important effects on whether an individual is
commensurately well behaved
or deviant.
iStockphoto/Thinkstock
A person’s general mind-set is also known as
his or her definitions. Someone who spends
time around other drug users, for instance,
may not give a second thought to using or
worrying about the consequences of illegal
drugs.
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63
Section 4.3 Social Learning Theory
It is important to note that criminals do not commit crime every
second of their lives; there-
fore, they are not cognitively dominated by definitions that are
favorable to the commission
of crime. Instead, serious criminal offenders merely hold weak
definitions about conventional
behavior. This makes sense when one considers that serious
criminal offenders also experi-
ence failures in terms of adult functioning, such as
unemployment, financial insecurity, rela-
tionship discord, and imprudent behaviors like gambling,
smoking, sexual promiscuity, and
drug use. Their definitions about the righteousness of
conventional life are so distorted that
negative behaviors are enhanced.
There is ample evidence that definitions are related to antisocial
behavior. Drawing on data
from the National Youth Survey, Mears, Ploeger, and Warr
(1998) found that definitions and
moral evaluations of antisocial conduct are significantly
responsible for the large sex dif-
ferences in crime. Mears and his colleagues found that
delinquent peers were predictive of
delinquency for both males and females; however, greater moral
evaluations by girls buffered
them from the pernicious effects of delinquent peers. In another
study that used the National
Youth Survey, Hochstetler, Copes, and DeLisi (2002) explored
the link between respondents’
attitudes and their friends’ attitudes and involvement in three
forms of crime: vandalism,
theft, and assault. They found that friends’ attitudes were
significantly associated with all
forms of crime. In addition, these effects were found in both
solo and group forms of theft,
vandalism, and assault.
Differential Reinforcement
Differential reinforcement is the balance of reward and
punishment that is produced from
behavioral acts. Consistent with Akers’s theory, antisocial
behavior is very costly to those
who have little to no association with antisocial peers and is
beneficial or rewarding to those
who are enmeshed in antisocial peer networks. To prosocial
people, crime brings incredible
stigma, financial costs, fear, and the potential loss of liberty,
employment, and other attach-
ments. To antisocial people, crime can bring credibility and
enhance one’s reputation. Gang
activity is a clear example. To ascend the ranks of a gang,
members will often commit major
acts of violence to impress their peers or leaders in the gang
hierarchy. Such criminal behav-
iors are highly reinforcing because they bolster one’s position
within the gang.
Focused research on habitual criminals demonstrates the
interesting ways that involvement
in criminal acts can be highly reinforcing. For example, Wood,
Gove, Wilson, and Cochran
(1997) surveyed more than 300 incarcerated prisoners and also
conducted focus groups with
40 offenders who were career criminals. They found that serious
offenders found crime to be
intrinsically rewarding, reported feelings of physiological
euphoria when committing crime,
and felt that crime solidified their self-concept. Wood and
colleagues referred to these pro-
cesses as “nonsocial” reinforcement.
Imitation
Imitation is the repeating or mimicry of behaviors that have
been directly or indirectly
observed. Imitation is particularly salient during the initial
exposure to behaviors that will be
modeled. Over time, one’s behavior becomes habituated and is
second nature; thus, there is
no longer necessarily a need to imitate a behavioral role model.
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64
Section 4.4 Social Cognitive Theory
Bandura is an important figure in studying the factor of
imitation in social learning. He dem-
onstrated that aggression is produced from exposure to role
models who display aggression
and the imitation of it (Bandura, 1978). However, because his
approach is directed toward
aggression, we will wait to discuss it until Chapter 6.
One of the most powerful pieces of evidence of the importance
of imitation relates to intimate
partner violence. Violence that occurs in the home produces a
staggering array of immediate
and enduring costs for children. In addition to exposing children
to verbal, physical, and at
times sexual abuse, such homes model violence for children at
vital developmental stages
that can set into motion learning processes that favor the use of
violence during interper-
sonal disputes. If this occurs, these behaviors can be repeated
years later. For instance, Sell-
ers, Cochran, and Winfree (2007) surveyed nearly 1,300
university students and found that
imitation significantly predicted dating or courtship violence.
Moreover, separate analyses
found that imitation predicted violence among both male and
female students; however, the
effects were more pronounced among women.
4.4 Social Cognitive Theory
The social cognitive theory focuses on cognitive processes,
rational thought, and cognitive
expectancies as important determinants of behavior.
Importantly, cognitive psychology deals
not only with cognitive processes but also with the emotional
processes that are related to the
ways that people think. In other words, this perspective shows
the connection between think-
ing and feeling and how both actions influence behavior. In
addition, the cognitive psychology
perspective is aligned with social learning theory in the sense
that learning processes are
involved. For clarification, social cognitive theory focuses on
the situational factors that may
influence our cognitions. That is, cognitive theory focuses on
internal processes that influence
our perceptions and thus lead to our cognitions, whereas social
cognitive theory focuses on
external influences.
Assumptions
Social cognitive theory is not a singular theory but is rather a
theoretical perspective that is
guided by several assumptions.
• Cognitions include a range of constructs, such as beliefs,
expectancies, attribu-
tions (what people believe about the causes of events), and
memories about the
self. These constructs are essential for understanding the
feelings and behavior of
people.
• Various types of psychopathology, such as crime, arise from
distorted, incorrect, or
maladaptive cognitions concerning the self, others, and events.
For example, anti-
social individuals are likely to perceive negative motives from
others during normal
social interaction—this is known as hostile attribution bias.
This bias produces a
higher likelihood of conflict and thus opportunities for crime.
• Maladaptive cognitions set into motion a self-fulfilling cycle
of feelings and behav-
iors whereby persons confirm and maintain their maladaptive
ways (Pervin,
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65
Section 4.4 Social Cognitive Theory
Cervone, & Oliver, 2005). Because antisocial individuals are
partially driven by
antisocial or hostile cognitions and are more likely to be
aggressive, they are prone
to using aggression as a means to resolve disputes. In addition,
this negative cycle of
feelings and behaviors commonly results in the individual
associating with people
with similar deficits. This provides the basis for deviant peer
associations.
Self-Efficacy
One of the major figures in social cognitive theory is Bandura,
and one of his major contri-
butions is his work on self-efficacy. Self-efficacy is the belief
that one harbors about one’s
competence in a particular situation or the general sense of
confidence that one holds about
oneself; it is part of a larger set of self-evaluative cognitive
processes that Bandura called the
“self-system.” The importance of self-efficacy
to crime is perhaps most clearly understood
when considering persons who have desisted
from lives of crime, such as former prison-
ers who decided to “go straight.” Reformed
offenders develop a general sense of confi-
dence, self-acceptance, and pride in them-
selves once they maintain employment, attach
and fully commit to their family relationships,
and cease their association with bad influ-
ences, such as persons who use drugs or who
are actively involved in crime. Indeed, one of
the most effective forms of correctional treat-
ment is cognitive behavioral therapy, and it is
clearly informed by the social cognitive theo-
retical perspective.
Moral Disengagement
Bandura also proposed the concept of moral disengagement to
explain how “good” people
can sometimes engage in “bad” behaviors, which can be
categorized as behaviors that go
against the moral principles typically endorsed by society (see
Spotlight: Why Good People Do
Bad Things). More specifically, moral disengagement is a set of
social cognitive mechanisms
that allow individuals to justify their unethical and potentially
harmful behavior in order to
preserve their self-image. It is viewed as a process that enables
people to engage in negative
behaviors, ranging from small misdeeds to great atrocities,
without believing that they are
doing wrong or causing harm (Bandura, 1990, 1999). For
example, when children violate
their moral standards by behaving immorally, moral
disengagement can be used as a strategy
to justify the behavior and avoid the self-condemnation.
Bandura identified eight different ways (i.e., mechanisms) by
which people can disengage
from their bad behaviors. To further illustrate the concept of
moral disengagement and the
moral disengagement mechanisms, let’s take a look at the
following examples in the context
of how and why someone might attempt to justify his or her
unethical behavior.
KatarzynaBialasiewicz/iStock/Getty Images Plus
Self-efficacy, or a person’s overall sense of
confidence, is often high among people who
have “reformed” and quit bad behavior such
as doing drugs or committing crime.
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66
Section 4.5 Situational/Environmental Influences on Behavior
1. Moral justification: I broke the rules, but it helped our team
win.
2. Euphemistic labeling: I needed to get in a fight to “let off
steam.”
3. Advantageous comparison: There are people in other gangs
who are far more violent
that I am.
4. Displacement of responsibility: I only cheated because my
coach told me to.
5. Diffusion of responsibility: I heard she was being assaulted,
but I assumed someone
else would help her.
6. Distortion of consequences: I know I stole the money, but my
parents won’t ever
know.
7. Attribution of blame: I only reacted violently because he
yelled at me first.
8. Dehumanization: That guy is an “animal.” He deserves
whatever punishment he gets.
As you can see, people can have the capacity to socially and
cognitively restructure their unac-
ceptable behaviors so that the behaviors become morally
acceptable. In a sense, people can
distort consequences by muddying their personal responsibility
with respect to creating neg-
ative outcomes.
Spotlight: Why Good People Do Bad Things
Psychologist and Stanford University professor emeritus Philip
Zimbardo is perhaps most
renowned for his 1971 Stanford prison experiment, in which he
set up a prison-like environ-
ment at the university and recruited college students to act as
prison guards and prisoners.
The goal of the experiment was to explore the situational effects
of power, cognitive disso-
nance (or stress due to contradictory beliefs), and good versus
evil.
Though the methodology of the experiment has since been
questioned, Zimbardo remains
a key figure in modern psychology. In a 2008 TED Talk, he
discussed moral disengagement
and the psychology of evil. Watch the video at the following
link: https://www.youtube.com
/watch?v=OsFEV35tWsg.
4.5 Situational/Environmental Influences on Behavior
By building on learning theories, we are able to better
understand how individuals learn
behaviors depending on their situation or environment.
Situational factors and their influence
on human behavior are the domain of social psychology. That
is, social psychology focuses on
how our behavior may be shaped by the situations in which we
find ourselves. For example,
we are more likely to modify our behavior at work with our
supervisors than at home alone or
with our family members. An interesting observation that arises
time and again in the social
psychological perspective is that we tend to discount, or ignore
altogether, the power of situ-
ational factors in influencing our behavior.
Human behavior is molded and influenced by environmental
context and social situations.
This is the essence of the discipline of sociology, which
attempts to conceptualize human
behavior using constructs outside of the individual. Just as there
are risk and protective fac-
tors at the individual level, there are also environmental
contexts that can either increase or
decrease the likelihood that a person will commit a crime. Let’s
examine major content areas
in sociology that constitute key environmental influences on
behavior: family effects, peer
influences, neighborhood effects, and socioeconomic status.
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redistribution.
https://www.youtube.com/watch?v=OsFEV35tWsg
https://www.youtube.com/watch?v=OsFEV35tWsg
67
Section 4.5 Situational/Environmental Influences on Behavior
Family Effects
One of the most widely studied and, to the
general public, most obvious correlates and
potential causes of antisocial and criminal
behavior centers on early life family charac-
teristics. Family effects figure prominently
in many of the leading theoretical explana-
tions of crime. In the social learning tradi-
tion, parents and older siblings who engage
in antisocial conduct serve as models of
deviant behavior for younger children. For
example, serial murderer Lorenzo Gilyard,
who was convicted of six counts of murder
in 2007 (he is believed to have murdered
and raped up to 13 women from the 1970s
to the 1990s), was raised in a family of vio-
lent offenders. His father had an extensive
criminal career that included convictions for
rape, and Gilyard’s sister and brother were
both convicted of homicide (Krajicek, 2012).
In families in which crime is openly committed, there are
numerous opportunities to learn
antisocial behavior, such as drug use and interpersonal violence,
and numerous reinforce-
ments of that behavior. In an important summary work,
Farrington and Welsh (2007)
reviewed the literature on family factors and crime and
generated six global explanations for
why offending tends to run in families.
1. There is intergenerational continuity in exposure to multiple
risk factors wherein
offending is part of a larger cycle of deprivation and antisocial
behavior.
2. There is assortment, whereby antisocial people choose
partners who are similar
to themselves in terms of antisocial attitudes, traits, and
behaviors (just as conven-
tional, prosocial people often choose partners who are similar to
them in terms of
attitudes, traits, and behaviors).
3. There is a considerable amount of social learni ng whereby
children observe the
antisocial habits and behaviors of their parents, siblings, or both
and subsequently
“learn” how to commit crime.
4. There is the idea that criminal parents place their children in
environmental situa-
tions that are conducive to offending.
5. There is labeling that occurs, where criminal justice systems
disproportionately
target youths with criminal parents.
6. There is evidence that “the effect of a criminal parent on a
child’s offending is medi-
ated by genetic mechanisms” (Farrington & Welsh, 2007, p. 59).
Peer Influences
A broad finding in psychology and criminology centers on the
processes whereby peers affect
the behavior of individuals and facilitate their conventional or
antisocial behavior. While par-
ents are the dominant socialization agent in the first decade of
life, a youth’s peers are his or
John Howard/Thinkstock
Parents and siblings serve as the primary
behavioral model for young children. Negative
family situations are considered a leading
cause of criminal behavior, according to social
learning theory.
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68
Section 4.5 Situational/Environmental Influences on Behavior
her dominant socialization agent during the second decade of
life. Moreover, it is during this
decade, especially in the middle school and high school years,
that individuals are most sus-
ceptible to the pressures to engage in delinquency (Moffitt,
1993).
The developmental effects of peers on antisocial behavior are
complex, and the roles of pro-
social peers and antisocial peers are equally important. Also,
while peer influences are most
impactful in teenage years, those influences begin far earlier.
Beginning in the preschool years
and extending into elementary school, a signal moment in the
development of antisocial
behavior is peer rejection. Peer rejection characterizes children
who are more disliked than
liked by their peers. The primary reason that a child is rejected
by peers is due to the rejected
child’s high level of aggressive behavior (Coie, 1990; Coie &
Dodge, 1998; Dodge, Coie, Pet-
tit, & Price, 1990). For instance, Dodge and his colleagues
(1990) found that rejected boys
demonstrate the highest levels of anger, reactive aggression,
and proactive or instrumental
aggression.
Learning is centrally related to understanding crime. Much of
the social learning that relates
to criminal behavior occurs in friendship networks in which
delinquent peers facilitate dis-
engagement from conventional activities—such as studying,
following school rules, and com-
plying with parental demands—in favor of antisocial activities.
See Case Study: Charles Manson for a brief look at how Manson
used peer influence to start a
deadly cult.
Case Study: Charles Manson
One of the most notorious cult leaders in American history,
Charles Manson formed the Man-
son Family cult in the late 1960s. Manson had a troubled,
unstable childhood and was a juve-
nile delinquent; based on accounts from family members, he
seemed to display psychopathic
traits. He was later diagnosed with antisocial personality
disorder.
As a young man, Manson became obsessed with the Beatles and
wanted to become more
famous than them. In and out of prison for most of his young
adult life, Manson was released
from a California prison in 1967 and soon began attracting a
group of mostly female followers
due to his charm and persuasion. The group called itself the
Manson Family. One of the foun-
dations of the cult was Manson’s belief that a race war was
impending and his “family” would
be the saviors; he named the prophecy Helter Skelter, a song by
the Beatles. According to his
prophecy, the cult needed to initiate the war themselves.
Manson sent his followers to commit
homicides against Hollywood elites.
Manson’s diagnosis and his criminal behavior can best be
categorized under the abnormal
psychology domain. However, Manson’s charm and
authoritative “leadership” were situational
factors in eliciting the behavior of his “followers” in carrying
out some of the most heinous
murders of all time. The behavior of his followers is best
conceptualized in terms of the power
of situational influences (e.g., obedience to authority, peer
pressure/influence, group dynam-
ics) on human behavior, including eliciting criminal behavior.
(continued)
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69
Section 4.5 Situational/Environmental Influences on Behavior
Neighborhood Effects
Instead of focusing on individual traits such as a child’s
personality, race or ethnicity, or psy-
chological conflicts, criminologists Clifford Shaw and Henry
McKay (1929, 1942) studied the
impact of the “kinds of places” (neighborhoods) that created
conditions favorable to delin-
quency. They believed delinquency was caused by the
neighborhood in which a child lived.
Shaw and McKay focused on the city of Chicago, which served
as a natural experiment of sorts
that demonstrated the enduring importance of neighborhood
characteristics on the delin-
quent and criminal behavior of its residents. For much of the
20th century, sociologists at the
University of Chicago noticed that crime and disorder seemed to
be concentrated within the
same geographic areas of the city, particularly in the poorest
neighborhoods close to the city
center. Crime and disorder declined sharply as one moved from
the city center to the suburbs.
Shaw and McKay examined this transformation as it emerged
and developed the theory of
social disorganization.
Social Disorganization Theory
According to social disorganization theory, neighborhoods
characterized by high residen-
tial mobility, tremendous ethnic heterogeneity, and high poverty
levels will exhibit higher
crime and delinquency rates. Shaw and McKay (1929, 1942)
discovered that socially disorga-
nized areas contain higher proportions of families on public
assistance, less expensive rents,
fewer residents owning homes, high infant mortality, and large
immigrant populations. They
also noted that delinquency rates in disorganized neighborhoods
were static even though
their racial and ethnic composition was quite dynamic. Crime-
ridden neighborhoods were
“bad” whether they were populated by western Europeans,
southern and eastern Europeans,
Latin Americans, or African Americans. Shaw and McKay
interpreted these findings in eco-
logical terms and decided that the communities themselves were
the key factor.
Case Study: Charles Manson (continued)
After the cult committed seven murders, the police finally
traced the homicides back to the
Manson Family. Manson, along with five of his followers, were
sentenced to life in prison; dur-
ing trial, they apparently showed no remorse for their crimes.
The peer influence in this case is astounding. Individuals were
drawn in by Manson’s charm
and persuasion, and his antisocial characteristics were imitated.
References
All That’s Interesting. (2019). Charles Manson facts that reveal
the man behind the monster. Retrieved
from https://allthatsinteresting.com/charles-manson-facts
Biography. (2019). Charles Manson biography. Retrieved from
https://www.biography.com/crime
-figure/charles-manson
Forensics Colleges. (2019). Dangerous minds: The mental
illnesses of infamous criminals. Retrieved
from
https://www.forensicscolleges.com/blo g/resources/dangerous-
minds-criminal-mental-illness
© 2020 Zovio, Inc. All rights reserved. Not for resale or
redistribution.
https://allthatsinteresting.com/charles-manson-facts
https://www.biography.com/crime-figure/charles-manson
https://www.biography.com/crime-figure/charles-manson
https://www.forensicscolleges.com/blog/resources/dangerous-
minds-criminal-mental-illness
70
Section 4.5 Situational/Environmental Influences on Behavior
Social disorganization theory has received
favorable empirical support, and experts
understand that the structural conditions
of a disorganized neighborhood contribute
to the negative behaviors of persons living
there. Consistent with social disorganiza-
tion theory, neighborhoods characterized
by high levels of residential turnover are
prone to greater levels of delinquency and
victimization (Xie & McDowall, 2008). A
recent study found that at the city level,
places characterized by high levels of ethnic
heterogeneity and economic disadvantage
also have a higher number of gang members
(Pyrooz, Fox, & Decker, 2010).
Simple exposure to violence in the most
socially disorganized of neighborhoods cre-
ates multiple negative consequences. Over time, exposure to
violence sets youths on a trajec-
tory of steadily declining parental monitoring. Because of the
toxic influences of gang activity
and community violence, it becomes increasingly difficult for
parents to manage and monitor
the activities of their children and adolescents effectively and
protect them from the effects
of violence.
Collective Efficacy
Criminologists have increasingly used the social disorganization
foundation when studying
the behavioral and cultural responses that occur from living in
blighted, disorganized neigh-
borhoods. A major behavioral response is that of “collective
efficacy,” an idea developed by
Robert Sampson and his colleagues (Sampson, Raudenbush, &
Earls, 1997). Collective effi-
cacy is a sense of mutual trust among neighbors in which there
is collective investment in the
common good and a willingness to intervene to help one
another. Collective efficacy speaks
to the traditional good deeds that make individuals
“neighborly,” including monitoring and
supervising children in the neighborhood even if the children
are not one’s own, watching a
neighbor’s house or vehicle when that person is out of town,
maintaining a clean and orderly
house and yard, providing emotional and perhaps financial
assistance to those in need, and
generally helping others. Neighborhoods with high levels of
collective efficacy have more
social cohesion and informal social control, and these
conditions reduce the incidence of
crime and disorder.
Socioeconomic Status
Socioeconomic status (SES) is a combination of one’s
educational attainment, income, and
wealth that locates one on a stratification system. Sociologists
use the term stratification
system to divide society into relatively distinct segments, strata,
or more generally, social
classes. For example, low SES is characterized by low school
achievement, including non-
completion of high school, low-wage manual-labor jobs, and
usually renting as opposed to
home ownership. Middle SES is characterized by greater
educational attainment, including
iStockphoto/Thinkstock
Social disorganization theory suggests that
structural conditions of neighborhoods have a
significant effect on human development and
contribute to criminal behaviors.
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71
Section 4.5 Situational/Environmental Influences on Behavior
high school and college degrees, higher earnings, home
ownership, and the accumulation of
wealth. High SES typifies individuals who have very high
educational attainment (e.g., MDs,
PhDs, or JDs), salaried jobs paying more than $100,000 per
year, and even greater wealth
accumulation. See Figure 4.2 for an example of educational
attainment related to SES level.
Although crime is not an automatic outcome of low SES, it is
more prevalent among low-SES
individuals than among those with higher SES.
Figure 4.2: Highest educational attainment of spring 2002 high
school
sophomores in 2012, by SES level
This graph provides an example of the relationship between
educational attainment level and SES
in a select group of high school students. The higher a student’s
SES, the more likely he or she is to
complete high school and earn a higher degree.
From “Educational Attainment Differences by Students’
Socioeconomic Status,” by the National Center for Education
Statistics,
2015 (https://nces.ed.gov/blogs/nces/post/educational -
attainment-differences-by-students-socioeconomic-status);
Digest of Education Statistics 2014 (p. 51), by US Department
of Education, National Center for Education Statistics, 2016,
Washington, DC: Author.
100
90
80
70
60
50
40
30
20
10
0
Less than
high school
completion
High
school
completion
Some
postsecondary
education
Postsecondary
certificate
Associate’s
degree
Bachelor’s or
higher degree
Highest educational attainment
P
e
rc
e
n
t
7
3
1
21
13
3
36 35
24
13 11
5
8 10
7
14
29
60
Middle SES
High SES
Low SES
For many decades, criminologists struggled with the idea that
SES was related to crime and
often rejected the idea that lower SES persons were more likel y
than higher SES persons
to offend. Yet even the most critical reviews of the research
demonstrated that there is an
inverse relationship between SES and crime (i.e., higher SES is
associated with lower crime
rates), and when criminal violence is the dependent variable of
interest, this relationship
is even stronger (Walsh, 2011). Although crime does occur
across the stratification system,
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https://nces.ed.gov/blogs/nces/post/educational-attainment-
differences-by-students-socioeconomic-status
72
Summary and Conclusion
property crimes such as burglary and violent crimes such as
murder, rape, armed robbery, and
aggravated assault are more prevalent among individuals with
lower SES. Indeed, the typical
socioeconomic profile of a prisoner in the United States is very
bleak and often involves low
educational attainment or even educational failure, such as
dropping out of middle or high
school; indigent status; little to no work, medical, or retirement
benefits; and essentially zero
wealth.
Summary and Conclusion
The process of learning is central to criminological thought.
Understanding the earliest
learning theories by Pavlov, Thorndike, Watson, and Skinner
paves the way to understand-
ing criminal behavior. These behaviorist learning theories
provided the foundation for
sociologists such as Akers to develop social learning theories,
which essentially state that
learning occurs by observation and exposure to situational
contexts.
Cognitive and social cognitive theories are a large part of
criminological thought. Such theo-
ries focus on the cognitive and emotional processes related to
the ways that people think in
relation to influences on behavior. These perspectives al ign
with learning theories because
learning processes are involved.
The discussion on learning theories provided a natural segue to
situational and environ-
mental effects on crime. Antisocial behaviors are often learned
from a young age at home
through the teenage years in school. In addition, socioeconomic
factors may play a role in
the likelihood that an individual will commit crime.
There is impressive empirical support for the ideas that
exposure to antisocial individu-
als, imitation of deviance, and viewing crime as a positive,
reinforcing option are related to
crime. Almost without exception, these content areas suggest
that crime is most accurately
understood as the interplay between the individual and
situational/environmental forces.
Critical Thinking Questions
1. Before you began reading this book, what was your personal
theory of crime causa-
tion? Which of the theories introduced in this chapter came
closest to your personal
view?
2. If any given theory was able to explain 25% of all crimes
committed, would you con-
sider that theory to be successful? Why or why not?
3. Would criminal psychology look different today if all the
early theories to explain
criminal behavior had been developed by women? Why or why
not?
4. How do the eight mechanisms of moral disengagement
operate in our daily lives?
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73
Summary and Conclusion
Key Terms
behaviorism A social learning–based the-
ory developed by John Watson that suggests
behaviors are the product of conditioning
that occurs as an individual interacts with
the environment. Behaviorism rejects the
notion that internal, person-specific factors
are the drivers of behavior.
blank slate The philosophical idea that
people are born basically the same in terms
of their innate abilities and that experience
molds their behaviors.
classical conditioning A theory developed
by Ivan Pavlov that is said to occur when two
stimuli are linked together to produce a new
learned response in a person or an animal.
collective efficacy A sense of mutual trust
among neighbors in which there is collective
investment in the common good and willing-
ness to help one another.
conventional beliefs Beliefs that are
unfavorable toward committing crime and
favorable toward conformity.
definitions An individual’s attitudes, orien-
tation, and rationalizations that characterize
his or her behavior and define it in moral or
value-based terms. Definitions refer to the
general mind-set a person has when com-
mitting a behavioral act and how the person
responds to his or her behavior.
deterrence A punishment philosophy that
uses the threat of punishment to control
behavior and prevent crime.
differential association The varying or
“differential” associations or friendships and
acquaintanceships that individuals directly
and indirectly have with others. These
friendships and acquaintanceships include
behaviors and the expression of values and
beliefs that support the behaviors.
differential association-reinforcement
theory A theory developed by Ronald Akers
that builds on Sutherland’s differential
theory of crime, Skinner’s operant condi-
tioning theory, and Bandura’s social learn-
ing theory. It argues that criminal behavior
is learned via both social and nonsocial
reinforcements.
differential reinforcement The balance
of reward and punishment that is produced
from behavioral acts.
imitation The repeating or mimicry of
behaviors that have been directly or indi-
rectly observed. Imitation is particularly
salient during the initial exposure to behav-
iors that will be modeled.
law of effect Thorndike’s theory stating
that the consequences of behavior serve to
strengthen or weaken its continuation.
moral disengagement A set of social
cognitive mechanisms that allow individu-
als to justify their unethical and potentially
harmful behavior in order to preserve their
self-image. Developed by Albert Bandura.
negative punishment A deterrent that
results in the removal of a valued stimulus
and in a decrease in the behavior.
negative reinforcement The strengthen-
ing of a behavioral response through the
removal of an aversive stimulus.
neutralizing beliefs Definitions by which
an individual justifies or provides excuses
for why his or her antisocial behavior is
permissible.
operant conditioning A learning theory
developed by B. F. Skinner that suggests
behavior is produced and modified based
on the reinforcements and punishments it
receives.
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74
Summary and Conclusion
peer rejection The rejection of a child
who is more disliked than liked by his or
her peers, most likely due to the child’s high
level of aggressive behavior.
peers Persons of a similar status in an indi-
vidual’s social environment.
positive beliefs Definitions by which an
individual believes committing crime is
permissible.
positive punishment A deterrent that
results in a behavior response that is
decreased or weakened when it is followed
by an aversive stimulus.
positive reinforcement A deterrent that
results in a desired behavioral response
followed by a rewarding or reinforcing
stimulus that strengthens the behavioral
response.
self-efficacy For the purposes of scientific
study, the belief that one harbors about
one’s competence in a particular situation.
social cognitive theory A set of theories
of social behavior studied by a number
of social psychologists; assumes people
are rational and that cognitive processes
are mainly responsible for behavior, self-
regulation, and the modulation of emotions.
social disorganization theory A theory
that asserts that neighborhoods character-
ized by high residential mobility, tremen-
dous ethnic heterogeneity, and high levels of
poverty will exhibit higher crime and delin-
quency rates.
socialization agents Persons such as par-
ents, peers, teachers, and others who con-
tribute to socialization.
social learning theory A theory originally
developed by Albert Bandura and further
researched and developed by Ronald Akers
and Gary Jensen. It suggests that behavior
is motivated by the effects it produces and
is largely based on mimicry of behaviors to
which one is frequently exposed.
socioeconomic status (SES) A combina-
tion of a person’s educational attainment,
income, and wealth that places him or her
on a stratification system.
stratification system A term used by
sociologists to divide society into relatively
distinct groupings based on social class.
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75
5Biological Influences on Criminal Behavior
Andrew Brookes/Cultura Limited/SuperStock
Learning Outcomes
After reading this chapter, you should be able to
• Examine the biological risk factors that are likely linked to
crime.
• Recognize why the study of executive functioning in criminals
is important for understanding the
neuropsychological causes of criminal behavior.
• Discuss whether there is a genetic susceptibility to engage in
criminal behavior.
• Explain how temperament could affect both prosocial and
antisocial behavior.
• Describe how personality develops and can be linked to
criminal behavior.
• Explore how criminal behavior could be predicted and
reinforced by a rise or change in hormones.
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76
Introductory Case Study: Phineas Gage
Introductory Case Study: Phineas Gage
On September 13, 1848, Phineas Gage was injured in a railroad
accident when a tamping iron
blasted through his face, skull, and brain and exited his head.
Despite losing consciousness and
suffering heavy bleeding, Gage not only survived the blast but
appeared to recover quickly. How-
ever, that recovery was largely limited to his physical health.
The accident caused a dramatic
personality transformation in Gage. He shifted from a
hardworking, responsible, intelligent,
prudent, and socially well-adjusted person to
an irreverent, impulsive, capricious, rowdy,
irresponsible person whose life devolved
into that of a drifter. This amazing case was
immortalized by John Harlow in 1868 in per-
haps the most interestingly titled academic
paper ever: “Recovery From the Passage of
an Iron Bar Through the Head.”
The well-known case study of Phineas Gage
is often used to demonstrate that the brain
is the anatomical seat of personality as well
as social and emotional functioning. In addi-
tion, the case demonstrates the intimate bond
between environment and person for under-
standing behavior. Prior to the accident, Gage was—in the
parlance of Gottfredson and Hirschi
(1990)—a person with high self-control. As a result, he was a
dependable, functioning member
of society. After the accident damaged his brain, Gage was
someone who epitomized the concept
of low self-control; he had difficulty maintaining employment
and seemed to lose his place as a
contributing member of society.
In 1994 neuroscientist Hanna Damasio and her colleagues
resurrected the case and examined
Gage’s skull with neuroimaging techniques to ascertain which
brain areas affected Gage’s deci-
sion making and emotional processing. Damasio and her
colleagues concluded that Gage’s inju-
ries were consistent with those of persons with similar i njuries
who display similar impairments
in rational decision making and emotional processing. The case
shows simultaneously that self-
control is a brain-based construct and that a random
environmental accident can undo that
same brain-based construct (Damasio, Grabowski, Frank,
Galaburda, & Damasio, 1994).
As you read this chapter, consider the following questions
regarding this case:
1. Are criminal brains different from noncriminal brains?
2. To what extent is criminal behavior learned, and to what
extent is it inherited?
3. What are the implications of the Phineas Gage case? Is it fair
to say that we are all
capable of engaging in similar behaviors?
Everett Collection/SuperStock
Various views of the famous wound in the skull
of railroad worker Phineas Gage and the iron
rod that pierced his skull.
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77
Section 5.2 The Brain and Criminal Behavior
5.1 Introduction
Are criminals “born,” or are criminals “made”? What is the
relationship, if any, between brain
deficits and criminal behavior? Do people have a genetic
predisposition to commit crimes? Or
is criminal behavior more likely to be influenced by social
factors?
As a field, criminology has historically focused on social and
psychological influences that
lead to criminal behavior. While research supports these factors
as important predictors of
crime, an increasing amount of research has demonstrated that
biological factors may also
contribute to the perpetration of crime. This chapter will
explore how the brain, genet-
ics, temperament, personality, and hormones might influence
criminal behavior. While the
research presented in this chapter is in no way exhaustive, it is
intended to provide a sample
of the biological influences that appear to be related to criminal
behavior.
It should be noted that genetic and other environmental factors
are not an “excuse” for crimi-
nal behavior. Victims of crime experience no less harm if the
perpetrator was predisposed
toward the behavior for biological, environmental, social, or
other factors. Nonetheless, it is
important to continually research and attempt to understand the
biological risk factors that
have been linked to crime, if for no other reason than to learn
how to reduce that risk.
5.2 The Brain and Criminal Behavior
Similar to psychological, social, and environmental factors,
there is no single biological fac-
tor that can effectively predict future criminal behavior.
However, a considerable amount of
research has centered on examining the differences in brain
functioning between people who
commit crimes and those who do not engage in criminal
behavior. As a result of this literature,
there is abundant evidence related to the impacts of executive
functioning and neurological
deficits.
Executive Functioning
The cognitive processes (connected with thinking or conscious
mental processes) that
serve to protect individuals from engaging in inappropriate or
criminal behavior are broadly
referred to as executive functions. Executive functions are a set
of cognitive processes such as
memory, attention, planning, and emotional and behavioral
regulation that are essential for
the cognitive control of behavior (see Figure 5.1).
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Section 5.2 The Brain and Criminal Behavior
Neurologically, executive functioning occurs in the prefrontal
cortex, the part of the frontal
lobe of the brain that is involved in complex behaviors such as
planning and decision making.
The frontal lobe of the brain houses higher order cognitive
functions that regulate the emo-
tional stimuli that come from the limbic system, a complex
system of networks and nerves in
the brain involved in basic emotions and drives (see Figure 5.2).
Figure 5.1: Executive functions
Neuropsychologists have shown that executive functions are
profoundly related to the social,
cognitive, and behavioral skills required to regulate behavior.
Executive
functions
Emotional
regulation
Planning
Self-
reflection
Theory of
mind-reading
of others’
intentions
Behavioral
control
Decision
making
Response
preservation
Moral
judgment
Organization
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79
Section 5.2 The Brain and Criminal Behavior
In a way, executive functioning is similar to
the adult part of the brain that must behave
responsibly, prudently, and intelligently,
even when more irresponsible emotions are
felt. The irresponsible emotions that origi-
nate from the limbic system are the child
part of the brain—imprudent and often
lacking foresight.
Thinking of the brain in adult and child
terms is useful for understanding the devel-
opment of specific brain regions (e.g., the
prefrontal cortex) and the social cogni-
tive processes that occur in those regions.
Impulsivity generally diminishes with age
because of protracted development of the
prefrontal cortex. Because impulsivity is
central to multiple behavioral disorders, it
is important to determine neural common-
alities and differences across disorders.
Figure 5.2: Frontal lobe, limbic system, and behavior
The limbic system is a complex system of networks and nerves
in the brain involved in basic
emotions and drives. The frontal cortex is the brain region
primarily involved in decision making and
personality expression.
learning, emotions
(amygdala)
Limbic system
decision making,
self-control
Frontal cortex
Monkeybusinessimages/iStock/Getty Images Plus
The brain can be explained using the analogy
of a parent and child, with the executive
function taking on the rational and responsible
role of a parent and the limbic system giving
rise to the impulses of a child.
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80
Section 5.2 The Brain and Criminal Behavior
Katya Rubia et al. (2008) conducted a study that compared brain
activation of 13 boys with
conduct disorder, 20 boys with attention-deficit/hyperactivity
disorder (ADHD) (a dis-
order defined by a persistent pattern of inattention and/or
hyperactivity or impulsivity that
interferes with functioning or development), and 20 boys
without a disorder. They found that
both boys with ADHD and boys with conduct disorder had
distinct brain abnormality pat-
terns during inhibitory control (i.e., times when they were asked
to control automatic, or
impulsive, responses). However, boys with ADHD displayed
differences in prefrontal regions,
whereas boys with conduct disorder had differences in the
posterior temporal parietal lobe.
Though we won’t go into detail about the parts of the brain
here, the importance of this study
is that the disorders—which are often comorbid (in other words,
occurring together)—have
distinct underlying neural abnormalities.
Given the importance of executive functioning for behavioral
regulation, it is clear that these
neurocognitive processes are related to crime. In her seminal
literature review, Moffitt (1990)
observed:
The normal functions of the frontal lobes of the brain include
sustaining
attention and concentration, abstract reasoning and concept
formation, goal
formulation, anticipation and planning, programming and
initiation of purpo-
sive sequences of motor behavior, effective self-monitoring of
behavior and
self-awareness, and inhibition of unsuccessful, inappropriate, or
impulsive
behaviors, with adaptive shifting to alternative behaviors. These
functions
are commonly referred to as “executive functions,” and they
hold consequent
implications for social judgment, self-control, responsiveness to
punishment,
and ethical behavior. (p. 115)
Indeed, recent research suggests that mainstream criminological
theories—such as Gottfred-
son and Hirschi’s (1990) general theory based on self-control—
are actually proxies of execu-
tive functioning. Drawing on data from the Early Childhood
Longitudinal Study, Kindergarten
Class of 1998–1999, Beaver, Wright, and DeLisi (2007) found
that executive functioning as
measured by fine motor skills and gross motor skills was
significantly related to childhood
self-control even while controlling for the effects of parental
involvement, parental with-
drawal, parental affection, family rules, physical punishment,
neighborhood disadvantage,
gender, race, and prior self-control. Children with poorer
executive functioning had lower
self-control (which is, of course, a robust predictor of antisocial
conduct), which increased the
risk for poor self-regulation and conduct problems.
A suite of biosocial factors contributes to executive
functioning. First, the assorted executive
functions are strongly heritable, which means that variance in
these functions is attributable
to genetic factors. For example, Naomi Friedman and her
colleagues at the Institute for Behav-
ioral Genetics at the University of Colorado Boulder examined
sources of variance in three
executive functions: response inhibition, updating working
memory representations, and set
shifting (which is similar to multitasking). They found that
these executive functions are influ-
enced by a common factor that is 99% heritable, making
executive functioning among the
most heritable psychological constructs (Friedman, Miyake,
Young, DeFries, Corley, & Hewitt,
2008). Second, early life environmental risk factors also
negatively affect executive function-
ing. These include poor nutrition, physical abuse, unsafe home
environments that may lead to
accidents, and overall family dysfunction. Fortunately, these
early home problems are specific
targets of prevention programs that serve to forestall the
development of serious criminality.
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81
Section 5.2 The Brain and Criminal Behavior
Neuropsychological Deficits
When executive functioning is less than optimal, psychological
criminologists focus on the par-
ticular problems or deficits that are associated with antisocial
conduct. Commonly referred to
as neuropsychological deficits, these are brain-based deficits in
social cognitive processes
that are risk factors for conduct problems and related
maladaptive behaviors such as prob-
lems in school. Neuropsychological deficits are importantly
related to antisocial behavior
both theoretically and empirically; they are the primary causal
force in the severe antisocial
development of offenders in Moffitt’s (1993) developmental
taxonomy (i.e., classification).
Syngelaki, Moore, Savage, Fairchild, and Van Goozen (2009)
observed, “Violent or antisocial
people often display disinhibited, impulsive, and risk-taking
behaviors with little concern for
the consequences of their actions. Moreover, they seem unable
to learn from their mistakes
(this particularly applies to individuals with psychopathic
characteristics)” (p. 1203).
Research from an array of studies has shown that
neuropsychological deficits are associated
with criminal behavior and are particularly characteristic of the
social cognitive profiles of
persons with behavioral disorders (Beaver, Vaughn, DeLisi,
Barnes, & Boutwell, 2011; Raine
et al., 2005; Séguin, 2004; Syngelaki et al., 2009). For example,
Raine and his colleagues (2005)
found that neuropsychological deficits were an important causal
factor, meaning that early
life social cognitive functioning portends a lifetime of severe
conduct problems. Morgan and
Lilienfeld (2000) conducted a meta-analysis of 39 studies that
encompassed 4,589 partici-
pants who had antisocial personality disorder (APD), conduct
disorder, psychopathy, delin-
quent status, or offender status. The meta-analysis found that
antisocial groups performed
significantly worse on executive functioning tests than the
control groups did.
Ogilvie, Stewart, Chan, and Shum (2011) conducted a
significantly larger meta-analysis of
studies that explored the linkages between neuropsychological
deficits, executive function-
ing, and antisocial behavior. Building on work by Morgan and
Lilienfeld (2000), Ogilvie and
his colleagues examined 126 studies that involved 14,784
participants. The researchers
reported results indicating that antisocial individuals have
greater neuropsychological defi-
cits than their conventional peers. Overall, the researchers
concluded that the relationship
between executive dysfunction or neuropsychological deficits
and various forms of antisocial
behavior is robust.
Research on Inattention
An important neuropsychological deficit
is inattention. Attention to one’s environ-
ment is essential across contexts but is par-
ticularly important for academic success
and school functioning. This means that
severely inattentive individuals are at risk
for school problems that in turn often cor-
relate with antisocial conduct. Examples of
the importance of attention include being
able to give close consideration to detail,
sustaining focus long enough to complete
a task or lesson, listening when spoken
to, sustaining mental effort, and ignoring
Comstock Images/Thinkstock
Individuals with attention problems have
difficulty ignoring external stimuli and are
much more likely to exhibit antisocial behavior
than those who can remain focused.
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82
Section 5.2 The Brain and Criminal Behavior
extraneous stimuli. Inattention distinguishes children in terms
of their school performance
and antisocial personality traits.
For example, a study of a community sample of more than 430
middle school students was
used to explore inattention in children (DeLisi et al., 2011).
About 72% of children had no
attention problems and could focus appropriately. These
children were prosocial and dis-
played little risk for delinquency. Two smaller groups displayed
inattention that was consistent
with ADHD predominantly inattentive type and ADHD
predominantly hyperactive–impulsive
type. About 10% of the sample had the greatest
neuropsychological deficits, especially relat-
ing to inattention, and had traits consistent with ADHD
combined type (i.e., both inattention
and hyperactive–impulsive behavior was present). Moreover,
the latter group had the worst
school performance as evidenced by three standardized tests,
was more callous and unemo-
tional, and was the most psychopathic. Consequently, it can be
assumed that this latter group
would be at the greatest risk for future antisocial behavior.
Research on Etiology of Neuropsychological Deficits
Due to the important links between neuropsychological deficits
and crime, a pressing
research area focuses on the etiological processes that result in
these deficits. Research find-
ings from nationally representative, large-scale studies are
illuminating. Using data from the
National Survey of Children, Ratchford and Beaver (2009)
found that birth complications
and low birth weight were significantly associated with
neuropsychological deficits (which
in turn predicted low self-control). Three socialization and
situational risk factors—parental
punishment, family rules, and neighborhood disadvantage —
were not predictive of neuropsy-
chological deficits. In a study based on data from the National
Longitudinal Study of Adoles-
cent Health, Beaver, Vaughn, DeLisi, and Higgins (2010)
examined a host of biosocial causes
of neuropsychological deficits and found that exposure to
cigarette smoke, brief duration of
breastfeeding, low maternal involvement, non-White racial
status, and low household income
were predictive of neuropsychological deficits.
Research on Brain Lesions
A final source of evidence about the importance of
neuropsychological deficits to antisocial
behavior stems from brain lesion studies. Persons who develop
or incur brain lesions in the
orbitofrontal cortex (OFC; the part of the prefrontal cortex that
is located behind the eye
sockets) are behaviorally similar to antisocial individuals in that
they are impulsive, socially
inappropriate, irresponsible, unable to read others’ moods and
motivations, and uninhibited.
Indeed, according to Séguin (2004):
The parallels between the effects of OFC lesions on social
behavior and the
symptoms of antisocial disorders are striking. It is not
surprising then that
questions about the underpinnings of antisocial disorders have
been sought
through a frontal lobe account. (p. 185)
The connection between brain lesions and antisocial behavior
means that individuals with
brain lesions are more likely to commit a crime.
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83
Section 5.3 Genetics
5.3 Genetics
Many people display very different behaviors and even achieve
different life outcomes than
their siblings, despite being raised by the same parents in the
same home in the same neigh-
borhood during the same period. Although there are certainly
commonalities between sib-
lings, it is also the case that their unique characteristics—
whether intelligence, athletic ability,
artistic ability, mental disability, or antisocial traits—launch
siblings upward or downward on
the social ladder. This is the essence of the interplay between
individual and environmental
factors and the interplay between psychological and
sociological constructs.
Twin Studies
Due to extraordinary advances in accessibility to genetic data,
psychologists, neuroscientists,
and a cadre of criminologists have delved into the genetic
mechanisms that contribute to
the crime–family relationship. In a landmark study using
participants from more than 1,000
families of 11-year-old twins and their parents, several
important findings were produced.
Researchers discovered that parent–child resemblance in terms
of criminal behavior was
accounted for by a general susceptibility to externalizing
disorders (e.g., aggression), and
this general susceptibility was mostly genetic in origin. For
example, 73% of the variance
(measurement of the spread between the data points) in
oppositional defiant disorder (ODD)
was heritable, or attributable to genetic factors, with 24%
attributable to nonshared envi-
ronmental factors unique to the child and just 3% attributable to
shared environmental
factors within the family (see Figure 5.3). Similar effects were
found for ADHD. A total of
73% of the variance was attributable to genetic factors; 27%
was attributable to nonshared
environmental factors, and, interestingly enough, zero variance
was attributable to shared
environmental factors. For conduct disorder, the most severe of
these three conditions, 51%
was genetic, 19% was attributable to nonshared environmental
factors, and 30% was shared
environmental (Bornovalova, Hicks, Iacono, & McGue, 2010).
Using a nationally representative sample of twins, Beaver,
DeLisi, Vaughn, Wright, and Bout-
well (2008) explored the developmental overlap between
language development and self-
control. They found that four measures of language
development deficits—language skills
deficits, letter recognition deficits, beginning sounds deficits,
and ending sounds deficits—
were significantly associated with low self-control. Due to the
nature of their data (i.e., twins),
Beaver and his colleagues were also able to access the relative
contribution of genetic and
environmental factors on the development of both language
skills and self-control. They
found that 61% of the variance in language skills and self-
control was attributable to genetic
effects and 39% to environmental effects for the cross-sectional
model (i.e., one point in time
with different samples). In a longitudinal model (i.e., several
points in time with the same
sample), the heritability was 76%, with environmental factors
accounting for the remain-
ing 24% of the variance. The study provided strong evidence
that the etiological pathway
between language and self-regulation is convergent (i.e.,
coming close together), and that
much of the association between these constructs has a genetic
basis.
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Section 5.3 Genetics
In yet another twin study, Kenneth Kendler and his colleagues
(2007) analyzed longitudinal
data from the Virginia Twin Registry to examine the effect that
the environment and genes
had on delinquent peer-group associations from childhood
through adulthood. The results
of their models revealed that genetic factors accounted for
roughly 30% of the variance in
peer-group deviance in childhood. Over time, however, genetic
effects on delinquent peers
became even stronger and accounted for approximately 50% of
the variance in peer-group
deviance. The study also pointed out that environmental
conditions were important contrib-
utors to delinquent peer affiliations. At every time period,
environmental effects accounted
for approximately 50% of the variance in peer-group deviance.
More recent research utilizing
data from the National Longitudinal Study of Adolescent Health
found that 58% to 74% of the
variance in association with delinquent peers was attributable to
genetic factors (Beaver, Gib-
son, et al., 2011). Peer effects are a critically important and
multifaceted correlate of crime.
Genetics and Criminal Behavior
For many years there was virtually no genetic research in
criminology because of lack of
data and ideological concerns about the implications of genetics
research. Over the past few
decades, however, this has changed dramatically. With the
advent of data sets that include
genetic measures, psychological criminologists today frequently
publish research on the
genetic underpinnings of crime. In this field the availability of
data ushered in a new para-
digm of research in criminology.
Figure 5.3: Sources of trait and behavioral variance
By analyzing twin data, psychological criminologists are able to
quantify how many antisocial traits
and conditions originate from genetic and environmental
sources.
Shared
environment
Heritability
Nonshared
environment
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Section 5.3 Genetics
For example, Moffitt (1993) theorized that cognitive problems
and antisocial behavior
share variance, and recent research has demonstrated that 70%
of the variance in life-
course-persistent offending (showing antisocial behavior from
childhood into adulthood)
is attributable to genetic factors (Barnes, Beaver, & Boutwell,
2011). (Moffitt’s theory,
which includes life-course-persistent offending, will be
discussed in more detail in Chap-
ter 7.) In fact, ADHD is a strongly heritable condition that has a
mostly genetic etiology.
Researchers have found that a childhood diagnosis of ADHD—a
disorder that is defined
by neurocognitive deficits—is among the strongest predictors of
life-course-persistent
offending 20 years later (Odgers et al., 2007), especially when
it co-occurs with other seri-
ous psychopathologies such as conduct disorder.
Diathesis-Stress Model
It is almost universally recognized that both indi-
vidual and environmental factors are important
for understanding behavior or—the focus of this
text—criminal behavior. Moreover, it is largely
recognized that individual and environmental
factors often interact with and mutually reinforce
each other. In the field of psychology, this type of
interaction is manifested in the diathesis-stress
model, in which individuals who are at biological
or genetic risk for some disorder or condition are
most sensitive to the stressors created by envi-
ronmental risk. Moreover, biological risk factors
render individuals more vulnerable to environ-
mental risks. Environmental risk factors in turn
render individuals susceptible to maladaptive
outcomes or antisocial behavior. It is important
to note that biological risks, environmental risks,
and their interactions continually affect the indi-
vidual. The culmination of these interactions in
the diathesis-stress model is negative behavior
(see Figure 5.4).
See Spotlight: Family Effects via Gene–Environment
Interplay to read about how genetics and the envi-
ronment can influence problem behaviors.
Figure 5.4: Diathesis-stress model
The diathesis-stress model is a popular
example of a conceptual framework that
recognizes the interactive and mutually
enforcing influences between individual-
level and environmental-level constructs.
Biological
risk
Environmental
risk
Vulnerability
Susceptibility
Maladaptive
behavior
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Section 5.3 Genetics
Spotlight: Family Effects via Gene–Environment Interplay
Given the compatibility between individual-
level and environmental-level risk factors for
crime, it is often difficult to accurately deter-
mine which factors are most responsible for
explaining crime. Fortunately, the field of behav-
ioral genetics has shed light on the interesting
and often fascinating ways that genes and envi-
ronments interact (Jang, 2005). Some of these
mechanisms are spotlighted here.
Gene–environment interaction occurs when a
measured genetic factor interacts with a mea-
sured environmental factor to produce a behav-
ioral outcome.
Passive gene–environment correlation occurs
because children share heredity and home envi-
ronments with family members and thus pas-
sively inherit environments that are correlated
with their genetic propensities.
Evocative or reactive gene–environment correlation reflects the
social and environmental inter-
actions that occur due to the genetically influenced
characteristics of the child. For example, a
child with severe conduct disorder would have adverse
interactions with parents, peers, and
teachers, and it is those genetically produced traits that
engender the reaction.
Active gene–environment correlation occurs when individuals
pick friends and social settings
that are compatible with their underlying genetic propensities.
This type of gene–environment
correlation is also known as “niche building” or “niche
picking.”
The crux of criminological research using genetically informed
designs is consistent with the
diathesis-stress model. Genetic risk factors are most likely to
contribute to criminal behavior
when they are coupled with environmental risk factors. The
landmark study that established
this connection explored the association between variants of the
MAOA gene and childhood
maltreatment among a birth cohort in New Zealand. The MAOA
gene encodes the MAOA
enzyme that degrades neurotransmitters in the brain, including
dopamine, serotonin, and
norepinephrine. Those with a genetic defect in the MAOA gene
who were abused as children
were significantly likely to be diagnosed with conduct disorder,
be convicted of a violent crime,
display symptoms of APD, and have a violent disposition (Caspi
et al., 2002).
Similarly, another study was the first to utilize a criminal
justice status as an environmental
pathogen that interacts with genetic factors to produce crime.
Using data from a nationally
representative sample of American youth, DeLisi, Beaver,
Vaughn, and Wright (2009) found
that African American females with a variant of the dopamine
receptor gene DRD2 who had
a father who had been arrested were significantly likely to
engage in serious delinquency and
violent delinquency across two waves of data collection, and
they were significantly likely to
be arrested.
These and thousands of other studies are quickly
demonstrating—at the molecular genetic
level—the intricate ways in which individual and environmental
forces come together to pro-
duce problem behaviors.
Getty Images/Thinkstock
If a child has parents who exhibit
criminal behavior, there is a chance
that genetics and environmental
factors can combine to lead the child to
his or her own criminal behavior later
in life.
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Section 5.4 Temperament
5.4 Temperament
Temperament has been defined in various ways. Famed
personality researcher Gordon All-
port (1961) conceptualized it as
the characteristic phenomena of an individual’s nature,
including his suscepti-
bility to emotional stimulation, his customary strength and
speed of response,
the quality of his prevailing mood, and all the peculiarities of
fluctuation and
intensity of mood, these being phenomena regarded as
dependent on consti-
tutional make-up, and therefore largely hereditary in origin. (p.
34)
Another well-known researcher, John Bates
(1989), defines temperament as the fol-
lowing: “Biologically rooted individual dif-
ferences in behavior tendencies that are
present early in life and are relatively stable
across various kinds of situations and over
the course of time” (p. 4).
Although it has many varied definitions,
temperament is broadly defined as the sta-
ble, biologically based, usual ways in which
a person regulates his or her behavior and
interacts with the environment. There is
general consensus that temperament refers
to those aspects of personality that are
innate rather than learned. For example,
sensitivity level—or the degree to which a child is disturbed by
changes in the environment—
can be thought of as an aspect of temperament. A person’s
mood—whether he or she has a
generally happy or unhappy demeanor—is another inborn trait.
Before we delve into the features of temperament and theories
surrounding temperament
and behavior, we first need to understand traits. A trait can be
defined as a quality or charac-
teristic that describes a person’s typical mood, behaviors, or
way of being. Temperament and
personality (discussed in the next section) are both trait
perspectives that explain behavior
by the set of characteristics an individual presents.
Temperament researchers and personal-
ity researchers both utilize traits in their conceptualizations of
people. Temperament has a
more physiological connotation to it that describes the usual
ways that a person behaves and
interacts with the environment. For example, people who are
relaxed and emotionally stable
differ in many ways from people who are anxious and
emotionally unpredictable. Tempera-
ment researchers focus on heart rate and other indicators of
central nervous system func-
tioning that are involved with a person’s overall arousal and
alertness to the environment.
Personality, on the other hand, has a more psychological
connotation to it that describes the
usual ways in which a person appears and interacts with others.
Monkeybusinessimages/iStock/Getty Images Plus
An individual’s behavior and interactions
with his or her environment are aspects of
temperament.
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Section 5.4 Temperament
Features of Temperament
Over the past half century or so, several key researchers have
developed their own models of
temperament that, although distinct, tend to agree on the
importance of a few essential con-
structs (Goldsmith et al., 1987; Kagan, 1998, 2010; Rothbart,
2007, 2011; Thomas & Chess,
1977; Zentner & Bates, 2008). What follows are some
additional integrative pieces of infor-
mation about temperament that are useful for thinking about the
ways it can contribute to
both prosocial and antisocial types of behavior.
• Temperamental features embody the individual differences
that can be seen across the
population and span the distribution of various traits from low
to high. When certain
negative temperamental features are found at pathologically
high levels, and when
those features are comorbid—or present along with other
pathologically high nega-
tive temperamental features—criminal behavior is more likely.
For example, persons
with high levels of negative emotionality, such as anger and
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114211PROCEDURE FOR WRITING A SYNOPSIS PAGE Su

  • 1. 11/4/21 1 PROCEDURE FOR WRITING A SYNOPSIS PAGE Sundeep Talwar COMPONENTS !  Title Page !  Body !  Work Cited 11/4/21 2 TITLE PAGE !  Title of the Topic !  Your Name !  Class Name, Number, and Section !  Date BODY !  The purpose of the synopsis page is to relate a topic learned in our microbiology class and relate it to an individual’s daily activities.
  • 2. !  Please consider that the target audience is a lay individual who has minimal foundational biology. !  So please explain complex terms and concepts. 11/4/21 3 EXAMPLE TOPIC !  Why brushing teeth before bed is essential in preventing dental carries? !  Explain how the oral flora ferments sugar stuck between teeth and in the process releases acid. !  Fermentation !  The acid breaks down the enamel. !  Name some of the bacterial species commonly found in the oral cavity that are known to ferment sugars. !  Therefore, microbes are responsible for causing tooth pain and bad breath. WORK CITED !  Please title the page work cited !  Please cite your sources in APA format, on the work cited page.
  • 3. 11/4/21 4 THINGS TO CONSIDER ! Please write only in the third person. ! Use proper grammar and spelling. ! Use a 12 size font – Times Roman. Can be single spaced or double, must be atleast a page long. THINGS TO CONSIDER ! Please cite properly and don’t plagiarize. If you need help citing ask! !  If any part of the synopsis is plagiarized or not properly cited, it will receive a grade of zero. 11/4/21 5 GRADING SCALE !  The title page and work cited are each worth 5 points. !  The body of the synopsis will be 40 points and
  • 4. will be graded on grammar and content. !  Content should be focused on being able to accurately relate microbiology concepts with daily life. 53 4 Learning and Situational/ Environmental Influences on Criminal Behavior Urilux/iStock/Getty Images Plus Learning Outcomes After reading this chapter, you should be able to • Analyze the early theories of behavior and their influence on the study of learning and criminal behavior. • Discuss why social learning theory is fundamental to the understanding of criminal behavior. • Explain the theory of differential association. • Discuss why social cognitive theory is fundamental to understanding criminal behavior. • Summarize situational/environmental influences and their impact on behavior.
  • 5. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 54 Section 4.1 Introduction Introductory Case Study: The Hillside Strangler The Hillside Strangler terrorized Los Angeles during 1977 and 1978, when at least 10 women were kidnapped, raped, tortured, and murdered over a 4-month period. The defendants in the case were cousins Angelo Buono and Kenneth Bianchi. Although both were psychopathic and sexually sadistic, there was also an interesting family dynamic to their relationship. Buono was nearly 20 years older than his cousin, more socially adept, and the dominant figure in their rela- tionship. Buono had an extensive criminal history and kept women involved in prostitution and sexual slavery. He exposed his younger cousin to these behaviors, and soon their pimping and sexual appetites escalated to murder. The two quarreled after the initial police investigation, and Bianchi fled California shortly after the Los Angeles murders and committed an additional two murders in the state of Washington before finally getting arrested in 1979. Both men were sentenced to life in prison. As you read this chapter, consider the following questions regarding this case:
  • 6. 1. Do you think Bianchi would have committed these murders had it not been for Buono’s influence? 2. Consider social learning theory with regard to Bianchi committing two more crimes without Buono. Which of the four factors of social learning theory can be applied? 3. What situational factors do you believe may have influenced Buono and Bianchi to commit those horrible crimes? 4.1 Introduction The criminal psychology field has invested heavily in attempting to understand the causes of criminal behavior, such as the crimes committed in the Hillside Strangler example. Through- out the history of the field, theorists have asserted that human behavior reflects forces of nature or forces of nurture, depending on one’s perspective. Today it is almost universally recognized that both individual and environmental factors are important for understanding behavior, including criminal behavior. Moreover, it is largely recognized that individual and environmental factors often interact with and mutually reinforce each other. Different theoretical models describe the relationship between variables and outcomes, and researchers have concluded that there is no single path to criminal behavior. This chap- ter explores various theories that help us understand the influences on behavior, as well as situational/environmental influences and their relationship to
  • 7. criminal behavior. We will begin by discussing some of the theories of learned behavior and later will explore how situational factors may influence criminal behavior. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 55 Section 4.2 Theories of Behaviorism 4.2 Theories of Behaviorism Though research on the stimuli for and consequences of behavior hasn’t focused on criminal behavior specifically, the research helps in understanding the causes of criminal behavior and why individuals learn these types of behaviors. Behaviorism is a social learning–based theory that suggests behaviors are the product of conditioning that occurs as an individual interacts with the environment. Behaviorism rejects the notion that internal, person-specific factors (e.g., emotional expression, self-regulation, intelligence) are the drivers of behavior. As a result, individual-level constructs are minimized or excluded in favor of learning from one’s environment. However, before the behaviorist school of thought was officially coined, several psychologists and criminologists developed theories of learned behavior to describe the “study of circum- stances under which a response and a cue stimulus become
  • 8. connected” (Miller & Dollard, 1941, p. 1). These theories are crucial to understanding the basis of behavior. Pavlov’s Classical Conditioning Theory Ivan Pavlov (1849–1936) is perhaps best known for his theory of classical conditioning, which is said to occur when two stimuli are linked together to produce a new learned response in a person or an animal. Pavlov conducted studies in which he measured and conditioned salivation (and other physiological responses) in dogs to respond to neutral stimuli. His work provided a basis for later behaviorists, who focused on the consequences of behavior (rather than the eliciting stimuli). Thorndike’s Law of Effect Other early studies of learning were conducted by Edward Thorndike (1874–1949), who argued that the consequences that follow behavior help learning. Thorndike developed the law of effect, which states that the consequences of behavior serve to strengthen or weaken its continuation. A baby who is fed a bottle of milk every time he or she cries (the behavior) will continue to cry when he or she feels hungry so that the parent will produce the bottle (the consequence). In other words, the consequence, because it is satisfying or pleasurable, serves to strengthen the crying behavior. To put it another way, when the response to a stimulus is positive, the connection between behavior and response is strengthened; when the response to the stimulus results in pain, the connection is weakened.
  • 9. Watson’s Theory of Behavior Though Pavlov and Thorndike began exploring learning theories before him, John Watson (1878–1958) was the founder of the behaviorism school in psychology, initiating the movement in 1913. He showed that the idea of classical conditioning could be applied to humans, via the famous and controversial Little Albert experiment. Visit the following link to learn more about this experiment: https://www.simplypsychology.org/classical- conditioning.html#little. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. https://www.simplypsychology.org/classical- conditioning.html#little 56 Section 4.2 Theories of Behaviorism One of the most famous and frequently cited quotations in psychology comes from Watson (1930): Give me a dozen healthy infants, well-formed, and my own specified world to bring them up in and I’ll guarantee to take any one at random and train him to become any type of specialist I might select—doctor, lawyer, artist, merchant- chief, and, yes, even beggar-man and thief, regardless of his talents, penchants, tendencies, abilities, vocations, and race of his ancestors. (p.
  • 10. 82) An important legacy of behaviorism for understand- ing crime is a blank slate conceptualization of human behavior; Watson asserted this concept. The idea of a blank slate, or tabula rasa, which is attributed to the philosophers John Locke, Jean-Jacques Rous- seau, and John Dryden, is that people are born basi- cally the same in terms of their innate abilities and that experience molds their behaviors. The blank slate is an optimistic worldview contrasting the idea of widespread individual variation. The implica- tion for understanding crime is that learning-based theoretical approaches generally view the criminal offender as an innately blank slate that is then cor- rupted by negative or crime-inducing environmen- tal features and personal connections. Skinner’s Operant Conditioning B. F. Skinner (1904–1990) was a psychologist widely known for his research on operant con- ditioning, a learning theory that suggests behavior is produced and modified based on the reinforcements and punishments it elicits. Over time, a particular behavior is paired with specific consequences that either strengthen or weaken the behavior. There are four types of reinforcement related to operant conditioning: positive reinforcement, negative reinforce- ment, positive punishment, and negative punishment. Positive reinforcement is a type of reinforcement that involves a behavioral response fol- lowed by a rewarding or reinforcing stimulus (also known as a “reinforcer”). The rewarding stimulus serves to strengthen the behavioral response. For
  • 11. instance, children who display good behavior (response) are likely to receive praise, warmth, and affection (reinforcers) from their parents, which serves to further encourage the good behavior. Negative reinforcement is a type of reinforcement that involves the strengthening of a behavioral response through the removal of an aversive stimulus. For instance, a child who receives a stern lecture from his or her parents for neglecting chores can end the lecturing (aversive stimulus) by performing the chores (response) in the first place. In positive punishment, a particular behavior or response is decreased or weakened when it is followed by an aversive stimulus. A stern stare from parents (aversive stimulus) will often Jacek_Sopotnicki/iStock/Getty Images Plus Learning-based theories assert that we start as a blank slate when we’re born and learn negative behaviors from our environments as we develop. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 57 Section 4.3 Social Learning Theory immediately stop the problem behavior (response) that a child is exhibiting. In negative pun-
  • 12. ishment, a behavior or response is weakened through the removal of a valued stimulus. For example, if a parent prohibits the use of a valued item (such as a smartphone) because his or her child broke curfew, the child may learn not to break curfew again. The removal of the smartphone (valued stimulus) will decrease the likelihood that the child will continue to stay out late (behavior). See Table 4.1 for further examples of reinforcement and punishment. Table 4.1: Examples of reinforcement and punishment Stimulus Operant response Consequence (reinforcement or punishment) Implications Teacher promises a sticker for good behavior in class. Student behaves well in class. Positive reinforcement. Student receives a sticker. Student is more likely to behave well in future classes. Teacher ridicules
  • 13. wrong answers spoken aloud. Student answers only when sure of being right. Negative reinforcement. Student is not ridiculed. Student is more likely to answer only when sure of being right. Teacher presents a lecture. Student talks to neighbor. Positive punishment. Teacher has student clean cupboards. Student is less likely to talk during a lecture. Teacher promises field trip for good behavior. Student misbehaves. Negative punishment. Privilege of going on field trip is withdrawn. Student is less likely
  • 14. to misbehave before a field trip. Operant conditioning played an important role in updating criminological explanations of crime that used social learning theory, particularly those relating to the role of reinforcement in perpetuating behavior. Given these basic definitions, we can see the parallels between behavioral theory and the criminal justice process. For many people who live their entire lives without an arrest, the mere potential threat of punishment is sufficient to deter criminal behavior. This is known as deterrence. For serious criminal offenders, unfortunately, the threat of punishment does little to discourage subsequent criminal acts. 4.3 Social Learning Theory Among conventional wisdom and scholarly researchers, social learning theory is a fundamen- tal part of understanding crime. It is so significantly related to crime that psychologists and sociologists alike made social learning theory a central part of their theoretical platforms. Few other conceptual areas can claim such universality. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 58 Section 4.3 Social Learning Theory
  • 15. Foundations of Social Learning Theory Social learning theory suggests that behavior is motivated by the effects it produces and is largely based on mimicry of behaviors to which one is frequently exposed. It gives credibility to the common saying that “birds of a feather flock together,” which means that individuals generally behave like those with whom they associate. The main reason the theory is popular is that so much of childhood is based on learning. In the home, children are continuously exposed to behaviors and verbal instruction from their parents and siblings about the appropriateness of various behaviors. Although parents often do their best to intentionally inculcate prosocial behaviors and values in their children, much of this inculcation occurs in an indirect, almost subconscious way. (Remember that the terms prosocial and antisocial do not mean extroverted or introverted. Prosocial means that a person’s behavior is oriented toward making a positive contribution to society; for example, picking up litter in a local park. Antisocial means that a person’s behavior does not conform to the norms, rules, and laws of an orderly society. An example is dumping litter in the park instead of in the trash receptacle, an offense that may result in a fine or criminal prosecution, depending on what was dumped.) What this means is that much of learning occurs by obser- vation and exposure to situational contexts. For instance, parents who work each day, prepare their clothing and lunch the night before
  • 16. going to work, leave early in the morning to arrive on time for work, invest their time and energy in productive labor in exchange for income and benefits, and generally invest in work as a social institution are displaying—each and every day—what it means to be a functioning member of society. Although this message may or may not be internalized by their children, because the parents are actively displaying good behavior, the children are more likely to learn. Learning occurs directly and indirectly, from observation of and interaction with role models who perform the behavior to be learned. The identical process occurs for negative behaviors. Consider parents who cannot hold down a job for more than a few weeks at a time. Being unable or unwilling to meet the responsibili- ties of their jobs, they either get fired or quit. Once at home, these parents vehemently cri- tique their former boss, lament their unemployment, and engage in unhealthy, unproductive behaviors (e.g., substance abuse, drug selling, gam- bling) to quell their boredom and meet the financial needs of their family. Although these parents might simultaneously praise the value and importance of work, their behavior tells another story, and their children are exposed to negative behaviors that are internalized and unfortunately mimicked. This scenario can be made much worse. The parents can abuse or neglect their children, introduce them to drugs or alcohol, engage in violence within the home, or commit any combination of these crimes. These behaviors are observed, internalized, and unfortunately learned.
  • 17. Parents act as socialization agents, or people who contribute to socialization—but so do teachers, coworkers, and peers, or persons of a similar status Digital Vision/Thinkstock According to social learning theory, much of learning occurs by observation and exposure to situational contexts, including influence from peers. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 59 Section 4.3 Social Learning Theory in an individual’s social environment. Whenever there is exposure to other individuals, there are opportunities to learn and imitate. Indeed, the very function of school is to instill the knowledge and skills that are needed for survival in a particular society. The preponderance of learning that occurs in our lives is positive; however, when exposure to antisocial individu- als and criminogenic settings occurs, there are also opportunities to adopt certain negative behaviors. In the psychological study of crime, social learning theory is unique in that it was developed and influenced by both psychologists and sociologists. And
  • 18. within American criminology, the social learning approach has served as a core method of understanding and explaining crime. Even though the term social learning theory was originally coined and developed by Albert Bandura while he was researching and studying aggression (we will wait to discuss Bandura’s findings until Chapter 6), the theory has become mostly associated with Ronald Akers. Crimi- nologists Akers and Gary Jensen (2006), two of the leading proponents of social learning theory, explain that it is a general theory that offers an explanation of the acquisition, maintenance, and change in criminal and deviant behavior that embraces social, non- social, and cultural factors operating both to motivate and control criminal behavior and both to promote and undermine conformity. (p. 38) Akers’s Differential Association-Reinforcement Theory Akers developed his differential association-reinforcement theory based on sociologist Edwin Sutherland’s differential theory of crime, Skinner’s operant conditioning theory, and Bandura’s social learning theory. Essentially, Akers argues that “criminal behavior is learned through both social and nonsocial reinforcements and that most learning of criminal behav- ior occurs in social interactions with other people” (as cited in Bernard, n.d., para. 3). Akers outlined the four core elements in his theory: differential association, definitions, differential reinforcement, and imitation.
  • 19. Differential Association Differential association refers to the varying associations or friendships and acquaintance- ships that individuals directly and indirectly have with others. (Differential is a term that sug- gests there are differences between individuals.) Although differential association is a classic in sociological criminology, it is clearly a social learning theory. Sutherland’s work is important because it is an example of the ways that scientific disciplines borrow concepts from one another and reinvent them with different language. Subsequent social learning approaches are more rooted in psychology. Sutherland’s theory contains nine principles: 1. Delinquent behavior is learned, not inherited. 2. Delinquent behavior is learned through interaction with others by way of verbal or nonverbal communication. 3. Learning occurs in intimate groups; it is in small, face-to- face gatherings that chil- dren learn to commit crime. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 60 Section 4.3 Social Learning Theory
  • 20. 4. In intimate groups, children learn techniques for committing crime, as well as the appropriate motives, attitudes, and rationalizations. The learning process involves expo- sure not only to the techniques of committing offenses but also to the attitudes or rationalizations that justify those acts. 5. The specific direction of motives and drives is learned from defini- tions of the legal code as being favorable or unfavorable. (The term definitions here refers to attitudes.) 6. A juvenile becomes delinquent due to an excess of definitions favorable to the violation of law over defini- tions unfavorable to the violation of law. This sixth principle is the core of the theory. Definitions favorable to the violation of law can be learned from both criminal and noncriminal people. 7. The tendency toward delinquency will be affected by the frequency, duration, prior- ity, and intensity of learning experiences. The longer, earlier, more intensely, and more frequently youths are exposed to both positive and negative attitudes about delinquency, the more likely it is that they will be influenced. 8. Learning delinquent behavior involves the same mechanisms involved in any other
  • 21. learning. While the content of what is learned is different, the process for learning any behavior is the same. 9. Criminal behavior and noncriminal behavior are expressions of the same needs and values. In other words, the goals of delinquents and nondelinquents are similar. What differs are the means they use to pursue their goals. In the case of differential association, some individuals associate with many criminals, some associate with criminals occasionally, and some never associate with criminals. These friend- ships and acquaintanceships involve behaviors and the expression of values and beliefs that support the behaviors. Importantly, differential association also includes indirect identi- fication with reference groups outside of one’s immediate contact, such as an individual’s involvement in an organization or online chat group. Although the person does not physically have access to these associates, there is nevertheless the transmission and learning of values, beliefs, and behaviors. Jupiterimages/liquidlibrary/Getty Images Plus Sutherland posited that an individual will learn criminal behaviors and rationalizations for such behaviors from his or her intimate groups, such as close friends. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution.
  • 22. 61 Section 4.3 Social Learning Theory Researchers theorize that differential association has greater effects on behavior depending on the duration, frequency, intensity, and priority of the associations (see Figure 4.1). How the duration, frequency, intensity, and priority of these associations predicts conventional or criminal behavior depends on the characteristics of the persons with whom one associates. For example, Schreck, Fisher, and Miller (2004) examined the relationship between friend- ship networks and violent victimization among respondents from the National Longitudinal Study of Adolescent Health. They found that adolescents and young adults who were popular and well connected in conventional friendship networks were very unlikely to be victims of a violent crime. A similar effect, albeit in the opposite direction, was found among those who were popular, well-connected members of antisocial friendship networks: They were more likely to be violently victimized. See Spotlight: Research on Differential Association in the Workplace to explore how coworkers and peers can have an effect on an individual’s work ethic. Figure 4.1: The parameters of differential association Relationship parameters such as duration, intensity, priority, and frequency can help determine the
  • 23. effect differential association will have on an individual’s behavior. Frequency Intensity Priority Duration Differential association © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 62 Section 4.3 Social Learning Theory Definitions Definitions refer to an individual’s attitudes, orientation, and rationalizations that charac- terize the person’s behavior and cast him or her in moral or value-based terms. Put sim- ply, definitions are a person’s beliefs about or moral evaluation of his or her behavior. Con- sider this brief example: People who are part of a “partying” friendship network like to drink alcohol and use illegal drugs. When an indi- vidual is with these substance-abusing friends, he or she gives little thought or consideration to the moral violations inherent in illegal drug use. However, the same individual would likely not engage in these behaviors or approve of
  • 24. them if they were taking place around that person’s parents. The difference in these situ- ations relates to the definitions that the indi- vidual produces about his or her behavior. There are three bases of definitions: conventional beliefs, positive beliefs, and neutralizing beliefs. Conventional beliefs are those that are unfavorable toward committing crime and favorable toward conformity. Positive beliefs are definitions by which an individual believes that committing crime is permissible. Neutralizing beliefs are definitions by which an indi- vidual justifies or provides excuses for why antisocial behavior is permissible (Akers & Jen- nings, 2009). Spotlight: Research on Differential Association in the Workplace Research focusing on the work setting and delinquency demonstrates the value of differential association. For instance, Gibson and Wright (2001) analyzed data from the Tri-Cities Adoles- cent Employment Survey, which is a survey of students from eight high schools in northeastern Tennessee. They found that workplace delinquency—which included behaviors such as lying on one’s time card about the number of hours worked, shortchanging customers, giving away goods or services for free, theft, using drugs or alcohol while on duty, and helping coworkers steal employers’ property—was predicted by coworker delinquency. On the other hand, coworkers can exert a positive influence on their colleagues. Utilizing data
  • 25. from the National Youth Survey, Wright and Cullen (2004) found that association with proso- cial coworkers helps dismantle delinquent peer networks and results in reductions in delin- quency and drug use. Taken together, these findings indicate that differential association with bad or good influ- ences at work has important effects on whether an individual is commensurately well behaved or deviant. iStockphoto/Thinkstock A person’s general mind-set is also known as his or her definitions. Someone who spends time around other drug users, for instance, may not give a second thought to using or worrying about the consequences of illegal drugs. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 63 Section 4.3 Social Learning Theory It is important to note that criminals do not commit crime every second of their lives; there- fore, they are not cognitively dominated by definitions that are favorable to the commission of crime. Instead, serious criminal offenders merely hold weak definitions about conventional
  • 26. behavior. This makes sense when one considers that serious criminal offenders also experi- ence failures in terms of adult functioning, such as unemployment, financial insecurity, rela- tionship discord, and imprudent behaviors like gambling, smoking, sexual promiscuity, and drug use. Their definitions about the righteousness of conventional life are so distorted that negative behaviors are enhanced. There is ample evidence that definitions are related to antisocial behavior. Drawing on data from the National Youth Survey, Mears, Ploeger, and Warr (1998) found that definitions and moral evaluations of antisocial conduct are significantly responsible for the large sex dif- ferences in crime. Mears and his colleagues found that delinquent peers were predictive of delinquency for both males and females; however, greater moral evaluations by girls buffered them from the pernicious effects of delinquent peers. In another study that used the National Youth Survey, Hochstetler, Copes, and DeLisi (2002) explored the link between respondents’ attitudes and their friends’ attitudes and involvement in three forms of crime: vandalism, theft, and assault. They found that friends’ attitudes were significantly associated with all forms of crime. In addition, these effects were found in both solo and group forms of theft, vandalism, and assault. Differential Reinforcement Differential reinforcement is the balance of reward and punishment that is produced from behavioral acts. Consistent with Akers’s theory, antisocial
  • 27. behavior is very costly to those who have little to no association with antisocial peers and is beneficial or rewarding to those who are enmeshed in antisocial peer networks. To prosocial people, crime brings incredible stigma, financial costs, fear, and the potential loss of liberty, employment, and other attach- ments. To antisocial people, crime can bring credibility and enhance one’s reputation. Gang activity is a clear example. To ascend the ranks of a gang, members will often commit major acts of violence to impress their peers or leaders in the gang hierarchy. Such criminal behav- iors are highly reinforcing because they bolster one’s position within the gang. Focused research on habitual criminals demonstrates the interesting ways that involvement in criminal acts can be highly reinforcing. For example, Wood, Gove, Wilson, and Cochran (1997) surveyed more than 300 incarcerated prisoners and also conducted focus groups with 40 offenders who were career criminals. They found that serious offenders found crime to be intrinsically rewarding, reported feelings of physiological euphoria when committing crime, and felt that crime solidified their self-concept. Wood and colleagues referred to these pro- cesses as “nonsocial” reinforcement. Imitation Imitation is the repeating or mimicry of behaviors that have been directly or indirectly observed. Imitation is particularly salient during the initial exposure to behaviors that will be modeled. Over time, one’s behavior becomes habituated and is
  • 28. second nature; thus, there is no longer necessarily a need to imitate a behavioral role model. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 64 Section 4.4 Social Cognitive Theory Bandura is an important figure in studying the factor of imitation in social learning. He dem- onstrated that aggression is produced from exposure to role models who display aggression and the imitation of it (Bandura, 1978). However, because his approach is directed toward aggression, we will wait to discuss it until Chapter 6. One of the most powerful pieces of evidence of the importance of imitation relates to intimate partner violence. Violence that occurs in the home produces a staggering array of immediate and enduring costs for children. In addition to exposing children to verbal, physical, and at times sexual abuse, such homes model violence for children at vital developmental stages that can set into motion learning processes that favor the use of violence during interper- sonal disputes. If this occurs, these behaviors can be repeated years later. For instance, Sell- ers, Cochran, and Winfree (2007) surveyed nearly 1,300 university students and found that imitation significantly predicted dating or courtship violence. Moreover, separate analyses
  • 29. found that imitation predicted violence among both male and female students; however, the effects were more pronounced among women. 4.4 Social Cognitive Theory The social cognitive theory focuses on cognitive processes, rational thought, and cognitive expectancies as important determinants of behavior. Importantly, cognitive psychology deals not only with cognitive processes but also with the emotional processes that are related to the ways that people think. In other words, this perspective shows the connection between think- ing and feeling and how both actions influence behavior. In addition, the cognitive psychology perspective is aligned with social learning theory in the sense that learning processes are involved. For clarification, social cognitive theory focuses on the situational factors that may influence our cognitions. That is, cognitive theory focuses on internal processes that influence our perceptions and thus lead to our cognitions, whereas social cognitive theory focuses on external influences. Assumptions Social cognitive theory is not a singular theory but is rather a theoretical perspective that is guided by several assumptions. • Cognitions include a range of constructs, such as beliefs, expectancies, attribu- tions (what people believe about the causes of events), and memories about the self. These constructs are essential for understanding the feelings and behavior of
  • 30. people. • Various types of psychopathology, such as crime, arise from distorted, incorrect, or maladaptive cognitions concerning the self, others, and events. For example, anti- social individuals are likely to perceive negative motives from others during normal social interaction—this is known as hostile attribution bias. This bias produces a higher likelihood of conflict and thus opportunities for crime. • Maladaptive cognitions set into motion a self-fulfilling cycle of feelings and behav- iors whereby persons confirm and maintain their maladaptive ways (Pervin, © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 65 Section 4.4 Social Cognitive Theory Cervone, & Oliver, 2005). Because antisocial individuals are partially driven by antisocial or hostile cognitions and are more likely to be aggressive, they are prone to using aggression as a means to resolve disputes. In addition, this negative cycle of feelings and behaviors commonly results in the individual associating with people with similar deficits. This provides the basis for deviant peer associations.
  • 31. Self-Efficacy One of the major figures in social cognitive theory is Bandura, and one of his major contri- butions is his work on self-efficacy. Self-efficacy is the belief that one harbors about one’s competence in a particular situation or the general sense of confidence that one holds about oneself; it is part of a larger set of self-evaluative cognitive processes that Bandura called the “self-system.” The importance of self-efficacy to crime is perhaps most clearly understood when considering persons who have desisted from lives of crime, such as former prison- ers who decided to “go straight.” Reformed offenders develop a general sense of confi- dence, self-acceptance, and pride in them- selves once they maintain employment, attach and fully commit to their family relationships, and cease their association with bad influ- ences, such as persons who use drugs or who are actively involved in crime. Indeed, one of the most effective forms of correctional treat- ment is cognitive behavioral therapy, and it is clearly informed by the social cognitive theo- retical perspective. Moral Disengagement Bandura also proposed the concept of moral disengagement to explain how “good” people can sometimes engage in “bad” behaviors, which can be categorized as behaviors that go against the moral principles typically endorsed by society (see Spotlight: Why Good People Do Bad Things). More specifically, moral disengagement is a set of
  • 32. social cognitive mechanisms that allow individuals to justify their unethical and potentially harmful behavior in order to preserve their self-image. It is viewed as a process that enables people to engage in negative behaviors, ranging from small misdeeds to great atrocities, without believing that they are doing wrong or causing harm (Bandura, 1990, 1999). For example, when children violate their moral standards by behaving immorally, moral disengagement can be used as a strategy to justify the behavior and avoid the self-condemnation. Bandura identified eight different ways (i.e., mechanisms) by which people can disengage from their bad behaviors. To further illustrate the concept of moral disengagement and the moral disengagement mechanisms, let’s take a look at the following examples in the context of how and why someone might attempt to justify his or her unethical behavior. KatarzynaBialasiewicz/iStock/Getty Images Plus Self-efficacy, or a person’s overall sense of confidence, is often high among people who have “reformed” and quit bad behavior such as doing drugs or committing crime. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 66
  • 33. Section 4.5 Situational/Environmental Influences on Behavior 1. Moral justification: I broke the rules, but it helped our team win. 2. Euphemistic labeling: I needed to get in a fight to “let off steam.” 3. Advantageous comparison: There are people in other gangs who are far more violent that I am. 4. Displacement of responsibility: I only cheated because my coach told me to. 5. Diffusion of responsibility: I heard she was being assaulted, but I assumed someone else would help her. 6. Distortion of consequences: I know I stole the money, but my parents won’t ever know. 7. Attribution of blame: I only reacted violently because he yelled at me first. 8. Dehumanization: That guy is an “animal.” He deserves whatever punishment he gets. As you can see, people can have the capacity to socially and cognitively restructure their unac- ceptable behaviors so that the behaviors become morally acceptable. In a sense, people can distort consequences by muddying their personal responsibility with respect to creating neg- ative outcomes. Spotlight: Why Good People Do Bad Things Psychologist and Stanford University professor emeritus Philip Zimbardo is perhaps most
  • 34. renowned for his 1971 Stanford prison experiment, in which he set up a prison-like environ- ment at the university and recruited college students to act as prison guards and prisoners. The goal of the experiment was to explore the situational effects of power, cognitive disso- nance (or stress due to contradictory beliefs), and good versus evil. Though the methodology of the experiment has since been questioned, Zimbardo remains a key figure in modern psychology. In a 2008 TED Talk, he discussed moral disengagement and the psychology of evil. Watch the video at the following link: https://www.youtube.com /watch?v=OsFEV35tWsg. 4.5 Situational/Environmental Influences on Behavior By building on learning theories, we are able to better understand how individuals learn behaviors depending on their situation or environment. Situational factors and their influence on human behavior are the domain of social psychology. That is, social psychology focuses on how our behavior may be shaped by the situations in which we find ourselves. For example, we are more likely to modify our behavior at work with our supervisors than at home alone or with our family members. An interesting observation that arises time and again in the social psychological perspective is that we tend to discount, or ignore altogether, the power of situ- ational factors in influencing our behavior. Human behavior is molded and influenced by environmental context and social situations.
  • 35. This is the essence of the discipline of sociology, which attempts to conceptualize human behavior using constructs outside of the individual. Just as there are risk and protective fac- tors at the individual level, there are also environmental contexts that can either increase or decrease the likelihood that a person will commit a crime. Let’s examine major content areas in sociology that constitute key environmental influences on behavior: family effects, peer influences, neighborhood effects, and socioeconomic status. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. https://www.youtube.com/watch?v=OsFEV35tWsg https://www.youtube.com/watch?v=OsFEV35tWsg 67 Section 4.5 Situational/Environmental Influences on Behavior Family Effects One of the most widely studied and, to the general public, most obvious correlates and potential causes of antisocial and criminal behavior centers on early life family charac- teristics. Family effects figure prominently in many of the leading theoretical explana- tions of crime. In the social learning tradi- tion, parents and older siblings who engage in antisocial conduct serve as models of deviant behavior for younger children. For example, serial murderer Lorenzo Gilyard, who was convicted of six counts of murder
  • 36. in 2007 (he is believed to have murdered and raped up to 13 women from the 1970s to the 1990s), was raised in a family of vio- lent offenders. His father had an extensive criminal career that included convictions for rape, and Gilyard’s sister and brother were both convicted of homicide (Krajicek, 2012). In families in which crime is openly committed, there are numerous opportunities to learn antisocial behavior, such as drug use and interpersonal violence, and numerous reinforce- ments of that behavior. In an important summary work, Farrington and Welsh (2007) reviewed the literature on family factors and crime and generated six global explanations for why offending tends to run in families. 1. There is intergenerational continuity in exposure to multiple risk factors wherein offending is part of a larger cycle of deprivation and antisocial behavior. 2. There is assortment, whereby antisocial people choose partners who are similar to themselves in terms of antisocial attitudes, traits, and behaviors (just as conven- tional, prosocial people often choose partners who are similar to them in terms of attitudes, traits, and behaviors). 3. There is a considerable amount of social learni ng whereby children observe the antisocial habits and behaviors of their parents, siblings, or both and subsequently “learn” how to commit crime.
  • 37. 4. There is the idea that criminal parents place their children in environmental situa- tions that are conducive to offending. 5. There is labeling that occurs, where criminal justice systems disproportionately target youths with criminal parents. 6. There is evidence that “the effect of a criminal parent on a child’s offending is medi- ated by genetic mechanisms” (Farrington & Welsh, 2007, p. 59). Peer Influences A broad finding in psychology and criminology centers on the processes whereby peers affect the behavior of individuals and facilitate their conventional or antisocial behavior. While par- ents are the dominant socialization agent in the first decade of life, a youth’s peers are his or John Howard/Thinkstock Parents and siblings serve as the primary behavioral model for young children. Negative family situations are considered a leading cause of criminal behavior, according to social learning theory. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 68
  • 38. Section 4.5 Situational/Environmental Influences on Behavior her dominant socialization agent during the second decade of life. Moreover, it is during this decade, especially in the middle school and high school years, that individuals are most sus- ceptible to the pressures to engage in delinquency (Moffitt, 1993). The developmental effects of peers on antisocial behavior are complex, and the roles of pro- social peers and antisocial peers are equally important. Also, while peer influences are most impactful in teenage years, those influences begin far earlier. Beginning in the preschool years and extending into elementary school, a signal moment in the development of antisocial behavior is peer rejection. Peer rejection characterizes children who are more disliked than liked by their peers. The primary reason that a child is rejected by peers is due to the rejected child’s high level of aggressive behavior (Coie, 1990; Coie & Dodge, 1998; Dodge, Coie, Pet- tit, & Price, 1990). For instance, Dodge and his colleagues (1990) found that rejected boys demonstrate the highest levels of anger, reactive aggression, and proactive or instrumental aggression. Learning is centrally related to understanding crime. Much of the social learning that relates to criminal behavior occurs in friendship networks in which delinquent peers facilitate dis- engagement from conventional activities—such as studying, following school rules, and com- plying with parental demands—in favor of antisocial activities.
  • 39. See Case Study: Charles Manson for a brief look at how Manson used peer influence to start a deadly cult. Case Study: Charles Manson One of the most notorious cult leaders in American history, Charles Manson formed the Man- son Family cult in the late 1960s. Manson had a troubled, unstable childhood and was a juve- nile delinquent; based on accounts from family members, he seemed to display psychopathic traits. He was later diagnosed with antisocial personality disorder. As a young man, Manson became obsessed with the Beatles and wanted to become more famous than them. In and out of prison for most of his young adult life, Manson was released from a California prison in 1967 and soon began attracting a group of mostly female followers due to his charm and persuasion. The group called itself the Manson Family. One of the foun- dations of the cult was Manson’s belief that a race war was impending and his “family” would be the saviors; he named the prophecy Helter Skelter, a song by the Beatles. According to his prophecy, the cult needed to initiate the war themselves. Manson sent his followers to commit homicides against Hollywood elites. Manson’s diagnosis and his criminal behavior can best be categorized under the abnormal psychology domain. However, Manson’s charm and authoritative “leadership” were situational factors in eliciting the behavior of his “followers” in carrying
  • 40. out some of the most heinous murders of all time. The behavior of his followers is best conceptualized in terms of the power of situational influences (e.g., obedience to authority, peer pressure/influence, group dynam- ics) on human behavior, including eliciting criminal behavior. (continued) © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 69 Section 4.5 Situational/Environmental Influences on Behavior Neighborhood Effects Instead of focusing on individual traits such as a child’s personality, race or ethnicity, or psy- chological conflicts, criminologists Clifford Shaw and Henry McKay (1929, 1942) studied the impact of the “kinds of places” (neighborhoods) that created conditions favorable to delin- quency. They believed delinquency was caused by the neighborhood in which a child lived. Shaw and McKay focused on the city of Chicago, which served as a natural experiment of sorts that demonstrated the enduring importance of neighborhood characteristics on the delin- quent and criminal behavior of its residents. For much of the 20th century, sociologists at the University of Chicago noticed that crime and disorder seemed to be concentrated within the
  • 41. same geographic areas of the city, particularly in the poorest neighborhoods close to the city center. Crime and disorder declined sharply as one moved from the city center to the suburbs. Shaw and McKay examined this transformation as it emerged and developed the theory of social disorganization. Social Disorganization Theory According to social disorganization theory, neighborhoods characterized by high residen- tial mobility, tremendous ethnic heterogeneity, and high poverty levels will exhibit higher crime and delinquency rates. Shaw and McKay (1929, 1942) discovered that socially disorga- nized areas contain higher proportions of families on public assistance, less expensive rents, fewer residents owning homes, high infant mortality, and large immigrant populations. They also noted that delinquency rates in disorganized neighborhoods were static even though their racial and ethnic composition was quite dynamic. Crime- ridden neighborhoods were “bad” whether they were populated by western Europeans, southern and eastern Europeans, Latin Americans, or African Americans. Shaw and McKay interpreted these findings in eco- logical terms and decided that the communities themselves were the key factor. Case Study: Charles Manson (continued) After the cult committed seven murders, the police finally traced the homicides back to the Manson Family. Manson, along with five of his followers, were sentenced to life in prison; dur- ing trial, they apparently showed no remorse for their crimes.
  • 42. The peer influence in this case is astounding. Individuals were drawn in by Manson’s charm and persuasion, and his antisocial characteristics were imitated. References All That’s Interesting. (2019). Charles Manson facts that reveal the man behind the monster. Retrieved from https://allthatsinteresting.com/charles-manson-facts Biography. (2019). Charles Manson biography. Retrieved from https://www.biography.com/crime -figure/charles-manson Forensics Colleges. (2019). Dangerous minds: The mental illnesses of infamous criminals. Retrieved from https://www.forensicscolleges.com/blo g/resources/dangerous- minds-criminal-mental-illness © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. https://allthatsinteresting.com/charles-manson-facts https://www.biography.com/crime-figure/charles-manson https://www.biography.com/crime-figure/charles-manson https://www.forensicscolleges.com/blog/resources/dangerous- minds-criminal-mental-illness 70 Section 4.5 Situational/Environmental Influences on Behavior Social disorganization theory has received favorable empirical support, and experts understand that the structural conditions
  • 43. of a disorganized neighborhood contribute to the negative behaviors of persons living there. Consistent with social disorganiza- tion theory, neighborhoods characterized by high levels of residential turnover are prone to greater levels of delinquency and victimization (Xie & McDowall, 2008). A recent study found that at the city level, places characterized by high levels of ethnic heterogeneity and economic disadvantage also have a higher number of gang members (Pyrooz, Fox, & Decker, 2010). Simple exposure to violence in the most socially disorganized of neighborhoods cre- ates multiple negative consequences. Over time, exposure to violence sets youths on a trajec- tory of steadily declining parental monitoring. Because of the toxic influences of gang activity and community violence, it becomes increasingly difficult for parents to manage and monitor the activities of their children and adolescents effectively and protect them from the effects of violence. Collective Efficacy Criminologists have increasingly used the social disorganization foundation when studying the behavioral and cultural responses that occur from living in blighted, disorganized neigh- borhoods. A major behavioral response is that of “collective efficacy,” an idea developed by Robert Sampson and his colleagues (Sampson, Raudenbush, & Earls, 1997). Collective effi- cacy is a sense of mutual trust among neighbors in which there
  • 44. is collective investment in the common good and a willingness to intervene to help one another. Collective efficacy speaks to the traditional good deeds that make individuals “neighborly,” including monitoring and supervising children in the neighborhood even if the children are not one’s own, watching a neighbor’s house or vehicle when that person is out of town, maintaining a clean and orderly house and yard, providing emotional and perhaps financial assistance to those in need, and generally helping others. Neighborhoods with high levels of collective efficacy have more social cohesion and informal social control, and these conditions reduce the incidence of crime and disorder. Socioeconomic Status Socioeconomic status (SES) is a combination of one’s educational attainment, income, and wealth that locates one on a stratification system. Sociologists use the term stratification system to divide society into relatively distinct segments, strata, or more generally, social classes. For example, low SES is characterized by low school achievement, including non- completion of high school, low-wage manual-labor jobs, and usually renting as opposed to home ownership. Middle SES is characterized by greater educational attainment, including iStockphoto/Thinkstock Social disorganization theory suggests that structural conditions of neighborhoods have a significant effect on human development and
  • 45. contribute to criminal behaviors. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 71 Section 4.5 Situational/Environmental Influences on Behavior high school and college degrees, higher earnings, home ownership, and the accumulation of wealth. High SES typifies individuals who have very high educational attainment (e.g., MDs, PhDs, or JDs), salaried jobs paying more than $100,000 per year, and even greater wealth accumulation. See Figure 4.2 for an example of educational attainment related to SES level. Although crime is not an automatic outcome of low SES, it is more prevalent among low-SES individuals than among those with higher SES. Figure 4.2: Highest educational attainment of spring 2002 high school sophomores in 2012, by SES level This graph provides an example of the relationship between educational attainment level and SES in a select group of high school students. The higher a student’s SES, the more likely he or she is to complete high school and earn a higher degree. From “Educational Attainment Differences by Students’ Socioeconomic Status,” by the National Center for Education Statistics,
  • 46. 2015 (https://nces.ed.gov/blogs/nces/post/educational - attainment-differences-by-students-socioeconomic-status); Digest of Education Statistics 2014 (p. 51), by US Department of Education, National Center for Education Statistics, 2016, Washington, DC: Author. 100 90 80 70 60 50 40 30 20 10 0 Less than high school completion High school completion
  • 48. 36 35 24 13 11 5 8 10 7 14 29 60 Middle SES High SES Low SES For many decades, criminologists struggled with the idea that SES was related to crime and often rejected the idea that lower SES persons were more likel y than higher SES persons to offend. Yet even the most critical reviews of the research demonstrated that there is an inverse relationship between SES and crime (i.e., higher SES is associated with lower crime rates), and when criminal violence is the dependent variable of interest, this relationship is even stronger (Walsh, 2011). Although crime does occur across the stratification system,
  • 49. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. https://nces.ed.gov/blogs/nces/post/educational-attainment- differences-by-students-socioeconomic-status 72 Summary and Conclusion property crimes such as burglary and violent crimes such as murder, rape, armed robbery, and aggravated assault are more prevalent among individuals with lower SES. Indeed, the typical socioeconomic profile of a prisoner in the United States is very bleak and often involves low educational attainment or even educational failure, such as dropping out of middle or high school; indigent status; little to no work, medical, or retirement benefits; and essentially zero wealth. Summary and Conclusion The process of learning is central to criminological thought. Understanding the earliest learning theories by Pavlov, Thorndike, Watson, and Skinner paves the way to understand- ing criminal behavior. These behaviorist learning theories provided the foundation for sociologists such as Akers to develop social learning theories, which essentially state that learning occurs by observation and exposure to situational contexts.
  • 50. Cognitive and social cognitive theories are a large part of criminological thought. Such theo- ries focus on the cognitive and emotional processes related to the ways that people think in relation to influences on behavior. These perspectives al ign with learning theories because learning processes are involved. The discussion on learning theories provided a natural segue to situational and environ- mental effects on crime. Antisocial behaviors are often learned from a young age at home through the teenage years in school. In addition, socioeconomic factors may play a role in the likelihood that an individual will commit crime. There is impressive empirical support for the ideas that exposure to antisocial individu- als, imitation of deviance, and viewing crime as a positive, reinforcing option are related to crime. Almost without exception, these content areas suggest that crime is most accurately understood as the interplay between the individual and situational/environmental forces. Critical Thinking Questions 1. Before you began reading this book, what was your personal theory of crime causa- tion? Which of the theories introduced in this chapter came closest to your personal view? 2. If any given theory was able to explain 25% of all crimes committed, would you con-
  • 51. sider that theory to be successful? Why or why not? 3. Would criminal psychology look different today if all the early theories to explain criminal behavior had been developed by women? Why or why not? 4. How do the eight mechanisms of moral disengagement operate in our daily lives? © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 73 Summary and Conclusion Key Terms behaviorism A social learning–based the- ory developed by John Watson that suggests behaviors are the product of conditioning that occurs as an individual interacts with the environment. Behaviorism rejects the notion that internal, person-specific factors are the drivers of behavior. blank slate The philosophical idea that people are born basically the same in terms of their innate abilities and that experience molds their behaviors. classical conditioning A theory developed by Ivan Pavlov that is said to occur when two stimuli are linked together to produce a new
  • 52. learned response in a person or an animal. collective efficacy A sense of mutual trust among neighbors in which there is collective investment in the common good and willing- ness to help one another. conventional beliefs Beliefs that are unfavorable toward committing crime and favorable toward conformity. definitions An individual’s attitudes, orien- tation, and rationalizations that characterize his or her behavior and define it in moral or value-based terms. Definitions refer to the general mind-set a person has when com- mitting a behavioral act and how the person responds to his or her behavior. deterrence A punishment philosophy that uses the threat of punishment to control behavior and prevent crime. differential association The varying or “differential” associations or friendships and acquaintanceships that individuals directly and indirectly have with others. These friendships and acquaintanceships include behaviors and the expression of values and beliefs that support the behaviors. differential association-reinforcement theory A theory developed by Ronald Akers that builds on Sutherland’s differential theory of crime, Skinner’s operant condi- tioning theory, and Bandura’s social learn-
  • 53. ing theory. It argues that criminal behavior is learned via both social and nonsocial reinforcements. differential reinforcement The balance of reward and punishment that is produced from behavioral acts. imitation The repeating or mimicry of behaviors that have been directly or indi- rectly observed. Imitation is particularly salient during the initial exposure to behav- iors that will be modeled. law of effect Thorndike’s theory stating that the consequences of behavior serve to strengthen or weaken its continuation. moral disengagement A set of social cognitive mechanisms that allow individu- als to justify their unethical and potentially harmful behavior in order to preserve their self-image. Developed by Albert Bandura. negative punishment A deterrent that results in the removal of a valued stimulus and in a decrease in the behavior. negative reinforcement The strengthen- ing of a behavioral response through the removal of an aversive stimulus. neutralizing beliefs Definitions by which an individual justifies or provides excuses for why his or her antisocial behavior is permissible.
  • 54. operant conditioning A learning theory developed by B. F. Skinner that suggests behavior is produced and modified based on the reinforcements and punishments it receives. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 74 Summary and Conclusion peer rejection The rejection of a child who is more disliked than liked by his or her peers, most likely due to the child’s high level of aggressive behavior. peers Persons of a similar status in an indi- vidual’s social environment. positive beliefs Definitions by which an individual believes committing crime is permissible. positive punishment A deterrent that results in a behavior response that is decreased or weakened when it is followed by an aversive stimulus. positive reinforcement A deterrent that results in a desired behavioral response followed by a rewarding or reinforcing
  • 55. stimulus that strengthens the behavioral response. self-efficacy For the purposes of scientific study, the belief that one harbors about one’s competence in a particular situation. social cognitive theory A set of theories of social behavior studied by a number of social psychologists; assumes people are rational and that cognitive processes are mainly responsible for behavior, self- regulation, and the modulation of emotions. social disorganization theory A theory that asserts that neighborhoods character- ized by high residential mobility, tremen- dous ethnic heterogeneity, and high levels of poverty will exhibit higher crime and delin- quency rates. socialization agents Persons such as par- ents, peers, teachers, and others who con- tribute to socialization. social learning theory A theory originally developed by Albert Bandura and further researched and developed by Ronald Akers and Gary Jensen. It suggests that behavior is motivated by the effects it produces and is largely based on mimicry of behaviors to which one is frequently exposed. socioeconomic status (SES) A combina- tion of a person’s educational attainment, income, and wealth that places him or her
  • 56. on a stratification system. stratification system A term used by sociologists to divide society into relatively distinct groupings based on social class. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 75 5Biological Influences on Criminal Behavior Andrew Brookes/Cultura Limited/SuperStock Learning Outcomes After reading this chapter, you should be able to • Examine the biological risk factors that are likely linked to crime. • Recognize why the study of executive functioning in criminals is important for understanding the neuropsychological causes of criminal behavior. • Discuss whether there is a genetic susceptibility to engage in criminal behavior. • Explain how temperament could affect both prosocial and antisocial behavior.
  • 57. • Describe how personality develops and can be linked to criminal behavior. • Explore how criminal behavior could be predicted and reinforced by a rise or change in hormones. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 76 Introductory Case Study: Phineas Gage Introductory Case Study: Phineas Gage On September 13, 1848, Phineas Gage was injured in a railroad accident when a tamping iron blasted through his face, skull, and brain and exited his head. Despite losing consciousness and suffering heavy bleeding, Gage not only survived the blast but appeared to recover quickly. How- ever, that recovery was largely limited to his physical health. The accident caused a dramatic personality transformation in Gage. He shifted from a hardworking, responsible, intelligent, prudent, and socially well-adjusted person to an irreverent, impulsive, capricious, rowdy, irresponsible person whose life devolved into that of a drifter. This amazing case was immortalized by John Harlow in 1868 in per- haps the most interestingly titled academic paper ever: “Recovery From the Passage of an Iron Bar Through the Head.” The well-known case study of Phineas Gage
  • 58. is often used to demonstrate that the brain is the anatomical seat of personality as well as social and emotional functioning. In addi- tion, the case demonstrates the intimate bond between environment and person for under- standing behavior. Prior to the accident, Gage was—in the parlance of Gottfredson and Hirschi (1990)—a person with high self-control. As a result, he was a dependable, functioning member of society. After the accident damaged his brain, Gage was someone who epitomized the concept of low self-control; he had difficulty maintaining employment and seemed to lose his place as a contributing member of society. In 1994 neuroscientist Hanna Damasio and her colleagues resurrected the case and examined Gage’s skull with neuroimaging techniques to ascertain which brain areas affected Gage’s deci- sion making and emotional processing. Damasio and her colleagues concluded that Gage’s inju- ries were consistent with those of persons with similar i njuries who display similar impairments in rational decision making and emotional processing. The case shows simultaneously that self- control is a brain-based construct and that a random environmental accident can undo that same brain-based construct (Damasio, Grabowski, Frank, Galaburda, & Damasio, 1994). As you read this chapter, consider the following questions regarding this case: 1. Are criminal brains different from noncriminal brains? 2. To what extent is criminal behavior learned, and to what extent is it inherited?
  • 59. 3. What are the implications of the Phineas Gage case? Is it fair to say that we are all capable of engaging in similar behaviors? Everett Collection/SuperStock Various views of the famous wound in the skull of railroad worker Phineas Gage and the iron rod that pierced his skull. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 77 Section 5.2 The Brain and Criminal Behavior 5.1 Introduction Are criminals “born,” or are criminals “made”? What is the relationship, if any, between brain deficits and criminal behavior? Do people have a genetic predisposition to commit crimes? Or is criminal behavior more likely to be influenced by social factors? As a field, criminology has historically focused on social and psychological influences that lead to criminal behavior. While research supports these factors as important predictors of crime, an increasing amount of research has demonstrated that biological factors may also contribute to the perpetration of crime. This chapter will explore how the brain, genet-
  • 60. ics, temperament, personality, and hormones might influence criminal behavior. While the research presented in this chapter is in no way exhaustive, it is intended to provide a sample of the biological influences that appear to be related to criminal behavior. It should be noted that genetic and other environmental factors are not an “excuse” for crimi- nal behavior. Victims of crime experience no less harm if the perpetrator was predisposed toward the behavior for biological, environmental, social, or other factors. Nonetheless, it is important to continually research and attempt to understand the biological risk factors that have been linked to crime, if for no other reason than to learn how to reduce that risk. 5.2 The Brain and Criminal Behavior Similar to psychological, social, and environmental factors, there is no single biological fac- tor that can effectively predict future criminal behavior. However, a considerable amount of research has centered on examining the differences in brain functioning between people who commit crimes and those who do not engage in criminal behavior. As a result of this literature, there is abundant evidence related to the impacts of executive functioning and neurological deficits. Executive Functioning The cognitive processes (connected with thinking or conscious mental processes) that serve to protect individuals from engaging in inappropriate or criminal behavior are broadly
  • 61. referred to as executive functions. Executive functions are a set of cognitive processes such as memory, attention, planning, and emotional and behavioral regulation that are essential for the cognitive control of behavior (see Figure 5.1). © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 78 Section 5.2 The Brain and Criminal Behavior Neurologically, executive functioning occurs in the prefrontal cortex, the part of the frontal lobe of the brain that is involved in complex behaviors such as planning and decision making. The frontal lobe of the brain houses higher order cognitive functions that regulate the emo- tional stimuli that come from the limbic system, a complex system of networks and nerves in the brain involved in basic emotions and drives (see Figure 5.2). Figure 5.1: Executive functions Neuropsychologists have shown that executive functions are profoundly related to the social, cognitive, and behavioral skills required to regulate behavior. Executive functions Emotional regulation
  • 62. Planning Self- reflection Theory of mind-reading of others’ intentions Behavioral control Decision making Response preservation Moral judgment Organization © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 79 Section 5.2 The Brain and Criminal Behavior In a way, executive functioning is similar to
  • 63. the adult part of the brain that must behave responsibly, prudently, and intelligently, even when more irresponsible emotions are felt. The irresponsible emotions that origi- nate from the limbic system are the child part of the brain—imprudent and often lacking foresight. Thinking of the brain in adult and child terms is useful for understanding the devel- opment of specific brain regions (e.g., the prefrontal cortex) and the social cogni- tive processes that occur in those regions. Impulsivity generally diminishes with age because of protracted development of the prefrontal cortex. Because impulsivity is central to multiple behavioral disorders, it is important to determine neural common- alities and differences across disorders. Figure 5.2: Frontal lobe, limbic system, and behavior The limbic system is a complex system of networks and nerves in the brain involved in basic emotions and drives. The frontal cortex is the brain region primarily involved in decision making and personality expression. learning, emotions (amygdala) Limbic system decision making, self-control
  • 64. Frontal cortex Monkeybusinessimages/iStock/Getty Images Plus The brain can be explained using the analogy of a parent and child, with the executive function taking on the rational and responsible role of a parent and the limbic system giving rise to the impulses of a child. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 80 Section 5.2 The Brain and Criminal Behavior Katya Rubia et al. (2008) conducted a study that compared brain activation of 13 boys with conduct disorder, 20 boys with attention-deficit/hyperactivity disorder (ADHD) (a dis- order defined by a persistent pattern of inattention and/or hyperactivity or impulsivity that interferes with functioning or development), and 20 boys without a disorder. They found that both boys with ADHD and boys with conduct disorder had distinct brain abnormality pat- terns during inhibitory control (i.e., times when they were asked to control automatic, or impulsive, responses). However, boys with ADHD displayed differences in prefrontal regions, whereas boys with conduct disorder had differences in the posterior temporal parietal lobe. Though we won’t go into detail about the parts of the brain
  • 65. here, the importance of this study is that the disorders—which are often comorbid (in other words, occurring together)—have distinct underlying neural abnormalities. Given the importance of executive functioning for behavioral regulation, it is clear that these neurocognitive processes are related to crime. In her seminal literature review, Moffitt (1990) observed: The normal functions of the frontal lobes of the brain include sustaining attention and concentration, abstract reasoning and concept formation, goal formulation, anticipation and planning, programming and initiation of purpo- sive sequences of motor behavior, effective self-monitoring of behavior and self-awareness, and inhibition of unsuccessful, inappropriate, or impulsive behaviors, with adaptive shifting to alternative behaviors. These functions are commonly referred to as “executive functions,” and they hold consequent implications for social judgment, self-control, responsiveness to punishment, and ethical behavior. (p. 115) Indeed, recent research suggests that mainstream criminological theories—such as Gottfred- son and Hirschi’s (1990) general theory based on self-control— are actually proxies of execu- tive functioning. Drawing on data from the Early Childhood Longitudinal Study, Kindergarten Class of 1998–1999, Beaver, Wright, and DeLisi (2007) found
  • 66. that executive functioning as measured by fine motor skills and gross motor skills was significantly related to childhood self-control even while controlling for the effects of parental involvement, parental with- drawal, parental affection, family rules, physical punishment, neighborhood disadvantage, gender, race, and prior self-control. Children with poorer executive functioning had lower self-control (which is, of course, a robust predictor of antisocial conduct), which increased the risk for poor self-regulation and conduct problems. A suite of biosocial factors contributes to executive functioning. First, the assorted executive functions are strongly heritable, which means that variance in these functions is attributable to genetic factors. For example, Naomi Friedman and her colleagues at the Institute for Behav- ioral Genetics at the University of Colorado Boulder examined sources of variance in three executive functions: response inhibition, updating working memory representations, and set shifting (which is similar to multitasking). They found that these executive functions are influ- enced by a common factor that is 99% heritable, making executive functioning among the most heritable psychological constructs (Friedman, Miyake, Young, DeFries, Corley, & Hewitt, 2008). Second, early life environmental risk factors also negatively affect executive function- ing. These include poor nutrition, physical abuse, unsafe home environments that may lead to accidents, and overall family dysfunction. Fortunately, these early home problems are specific targets of prevention programs that serve to forestall the
  • 67. development of serious criminality. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 81 Section 5.2 The Brain and Criminal Behavior Neuropsychological Deficits When executive functioning is less than optimal, psychological criminologists focus on the par- ticular problems or deficits that are associated with antisocial conduct. Commonly referred to as neuropsychological deficits, these are brain-based deficits in social cognitive processes that are risk factors for conduct problems and related maladaptive behaviors such as prob- lems in school. Neuropsychological deficits are importantly related to antisocial behavior both theoretically and empirically; they are the primary causal force in the severe antisocial development of offenders in Moffitt’s (1993) developmental taxonomy (i.e., classification). Syngelaki, Moore, Savage, Fairchild, and Van Goozen (2009) observed, “Violent or antisocial people often display disinhibited, impulsive, and risk-taking behaviors with little concern for the consequences of their actions. Moreover, they seem unable to learn from their mistakes (this particularly applies to individuals with psychopathic characteristics)” (p. 1203). Research from an array of studies has shown that
  • 68. neuropsychological deficits are associated with criminal behavior and are particularly characteristic of the social cognitive profiles of persons with behavioral disorders (Beaver, Vaughn, DeLisi, Barnes, & Boutwell, 2011; Raine et al., 2005; Séguin, 2004; Syngelaki et al., 2009). For example, Raine and his colleagues (2005) found that neuropsychological deficits were an important causal factor, meaning that early life social cognitive functioning portends a lifetime of severe conduct problems. Morgan and Lilienfeld (2000) conducted a meta-analysis of 39 studies that encompassed 4,589 partici- pants who had antisocial personality disorder (APD), conduct disorder, psychopathy, delin- quent status, or offender status. The meta-analysis found that antisocial groups performed significantly worse on executive functioning tests than the control groups did. Ogilvie, Stewart, Chan, and Shum (2011) conducted a significantly larger meta-analysis of studies that explored the linkages between neuropsychological deficits, executive function- ing, and antisocial behavior. Building on work by Morgan and Lilienfeld (2000), Ogilvie and his colleagues examined 126 studies that involved 14,784 participants. The researchers reported results indicating that antisocial individuals have greater neuropsychological defi- cits than their conventional peers. Overall, the researchers concluded that the relationship between executive dysfunction or neuropsychological deficits and various forms of antisocial behavior is robust.
  • 69. Research on Inattention An important neuropsychological deficit is inattention. Attention to one’s environ- ment is essential across contexts but is par- ticularly important for academic success and school functioning. This means that severely inattentive individuals are at risk for school problems that in turn often cor- relate with antisocial conduct. Examples of the importance of attention include being able to give close consideration to detail, sustaining focus long enough to complete a task or lesson, listening when spoken to, sustaining mental effort, and ignoring Comstock Images/Thinkstock Individuals with attention problems have difficulty ignoring external stimuli and are much more likely to exhibit antisocial behavior than those who can remain focused. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 82 Section 5.2 The Brain and Criminal Behavior extraneous stimuli. Inattention distinguishes children in terms of their school performance and antisocial personality traits. For example, a study of a community sample of more than 430
  • 70. middle school students was used to explore inattention in children (DeLisi et al., 2011). About 72% of children had no attention problems and could focus appropriately. These children were prosocial and dis- played little risk for delinquency. Two smaller groups displayed inattention that was consistent with ADHD predominantly inattentive type and ADHD predominantly hyperactive–impulsive type. About 10% of the sample had the greatest neuropsychological deficits, especially relat- ing to inattention, and had traits consistent with ADHD combined type (i.e., both inattention and hyperactive–impulsive behavior was present). Moreover, the latter group had the worst school performance as evidenced by three standardized tests, was more callous and unemo- tional, and was the most psychopathic. Consequently, it can be assumed that this latter group would be at the greatest risk for future antisocial behavior. Research on Etiology of Neuropsychological Deficits Due to the important links between neuropsychological deficits and crime, a pressing research area focuses on the etiological processes that result in these deficits. Research find- ings from nationally representative, large-scale studies are illuminating. Using data from the National Survey of Children, Ratchford and Beaver (2009) found that birth complications and low birth weight were significantly associated with neuropsychological deficits (which in turn predicted low self-control). Three socialization and situational risk factors—parental punishment, family rules, and neighborhood disadvantage — were not predictive of neuropsy-
  • 71. chological deficits. In a study based on data from the National Longitudinal Study of Adoles- cent Health, Beaver, Vaughn, DeLisi, and Higgins (2010) examined a host of biosocial causes of neuropsychological deficits and found that exposure to cigarette smoke, brief duration of breastfeeding, low maternal involvement, non-White racial status, and low household income were predictive of neuropsychological deficits. Research on Brain Lesions A final source of evidence about the importance of neuropsychological deficits to antisocial behavior stems from brain lesion studies. Persons who develop or incur brain lesions in the orbitofrontal cortex (OFC; the part of the prefrontal cortex that is located behind the eye sockets) are behaviorally similar to antisocial individuals in that they are impulsive, socially inappropriate, irresponsible, unable to read others’ moods and motivations, and uninhibited. Indeed, according to Séguin (2004): The parallels between the effects of OFC lesions on social behavior and the symptoms of antisocial disorders are striking. It is not surprising then that questions about the underpinnings of antisocial disorders have been sought through a frontal lobe account. (p. 185) The connection between brain lesions and antisocial behavior means that individuals with brain lesions are more likely to commit a crime. © 2020 Zovio, Inc. All rights reserved. Not for resale or
  • 72. redistribution. 83 Section 5.3 Genetics 5.3 Genetics Many people display very different behaviors and even achieve different life outcomes than their siblings, despite being raised by the same parents in the same home in the same neigh- borhood during the same period. Although there are certainly commonalities between sib- lings, it is also the case that their unique characteristics— whether intelligence, athletic ability, artistic ability, mental disability, or antisocial traits—launch siblings upward or downward on the social ladder. This is the essence of the interplay between individual and environmental factors and the interplay between psychological and sociological constructs. Twin Studies Due to extraordinary advances in accessibility to genetic data, psychologists, neuroscientists, and a cadre of criminologists have delved into the genetic mechanisms that contribute to the crime–family relationship. In a landmark study using participants from more than 1,000 families of 11-year-old twins and their parents, several important findings were produced. Researchers discovered that parent–child resemblance in terms of criminal behavior was accounted for by a general susceptibility to externalizing
  • 73. disorders (e.g., aggression), and this general susceptibility was mostly genetic in origin. For example, 73% of the variance (measurement of the spread between the data points) in oppositional defiant disorder (ODD) was heritable, or attributable to genetic factors, with 24% attributable to nonshared envi- ronmental factors unique to the child and just 3% attributable to shared environmental factors within the family (see Figure 5.3). Similar effects were found for ADHD. A total of 73% of the variance was attributable to genetic factors; 27% was attributable to nonshared environmental factors, and, interestingly enough, zero variance was attributable to shared environmental factors. For conduct disorder, the most severe of these three conditions, 51% was genetic, 19% was attributable to nonshared environmental factors, and 30% was shared environmental (Bornovalova, Hicks, Iacono, & McGue, 2010). Using a nationally representative sample of twins, Beaver, DeLisi, Vaughn, Wright, and Bout- well (2008) explored the developmental overlap between language development and self- control. They found that four measures of language development deficits—language skills deficits, letter recognition deficits, beginning sounds deficits, and ending sounds deficits— were significantly associated with low self-control. Due to the nature of their data (i.e., twins), Beaver and his colleagues were also able to access the relative contribution of genetic and environmental factors on the development of both language skills and self-control. They found that 61% of the variance in language skills and self-
  • 74. control was attributable to genetic effects and 39% to environmental effects for the cross-sectional model (i.e., one point in time with different samples). In a longitudinal model (i.e., several points in time with the same sample), the heritability was 76%, with environmental factors accounting for the remain- ing 24% of the variance. The study provided strong evidence that the etiological pathway between language and self-regulation is convergent (i.e., coming close together), and that much of the association between these constructs has a genetic basis. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 84 Section 5.3 Genetics In yet another twin study, Kenneth Kendler and his colleagues (2007) analyzed longitudinal data from the Virginia Twin Registry to examine the effect that the environment and genes had on delinquent peer-group associations from childhood through adulthood. The results of their models revealed that genetic factors accounted for roughly 30% of the variance in peer-group deviance in childhood. Over time, however, genetic effects on delinquent peers became even stronger and accounted for approximately 50% of the variance in peer-group deviance. The study also pointed out that environmental
  • 75. conditions were important contrib- utors to delinquent peer affiliations. At every time period, environmental effects accounted for approximately 50% of the variance in peer-group deviance. More recent research utilizing data from the National Longitudinal Study of Adolescent Health found that 58% to 74% of the variance in association with delinquent peers was attributable to genetic factors (Beaver, Gib- son, et al., 2011). Peer effects are a critically important and multifaceted correlate of crime. Genetics and Criminal Behavior For many years there was virtually no genetic research in criminology because of lack of data and ideological concerns about the implications of genetics research. Over the past few decades, however, this has changed dramatically. With the advent of data sets that include genetic measures, psychological criminologists today frequently publish research on the genetic underpinnings of crime. In this field the availability of data ushered in a new para- digm of research in criminology. Figure 5.3: Sources of trait and behavioral variance By analyzing twin data, psychological criminologists are able to quantify how many antisocial traits and conditions originate from genetic and environmental sources. Shared environment Heritability
  • 76. Nonshared environment © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 85 Section 5.3 Genetics For example, Moffitt (1993) theorized that cognitive problems and antisocial behavior share variance, and recent research has demonstrated that 70% of the variance in life- course-persistent offending (showing antisocial behavior from childhood into adulthood) is attributable to genetic factors (Barnes, Beaver, & Boutwell, 2011). (Moffitt’s theory, which includes life-course-persistent offending, will be discussed in more detail in Chap- ter 7.) In fact, ADHD is a strongly heritable condition that has a mostly genetic etiology. Researchers have found that a childhood diagnosis of ADHD—a disorder that is defined by neurocognitive deficits—is among the strongest predictors of life-course-persistent offending 20 years later (Odgers et al., 2007), especially when it co-occurs with other seri- ous psychopathologies such as conduct disorder. Diathesis-Stress Model It is almost universally recognized that both indi- vidual and environmental factors are important
  • 77. for understanding behavior or—the focus of this text—criminal behavior. Moreover, it is largely recognized that individual and environmental factors often interact with and mutually reinforce each other. In the field of psychology, this type of interaction is manifested in the diathesis-stress model, in which individuals who are at biological or genetic risk for some disorder or condition are most sensitive to the stressors created by envi- ronmental risk. Moreover, biological risk factors render individuals more vulnerable to environ- mental risks. Environmental risk factors in turn render individuals susceptible to maladaptive outcomes or antisocial behavior. It is important to note that biological risks, environmental risks, and their interactions continually affect the indi- vidual. The culmination of these interactions in the diathesis-stress model is negative behavior (see Figure 5.4). See Spotlight: Family Effects via Gene–Environment Interplay to read about how genetics and the envi- ronment can influence problem behaviors. Figure 5.4: Diathesis-stress model The diathesis-stress model is a popular example of a conceptual framework that recognizes the interactive and mutually enforcing influences between individual- level and environmental-level constructs. Biological risk Environmental
  • 78. risk Vulnerability Susceptibility Maladaptive behavior © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 86 Section 5.3 Genetics Spotlight: Family Effects via Gene–Environment Interplay Given the compatibility between individual- level and environmental-level risk factors for crime, it is often difficult to accurately deter- mine which factors are most responsible for explaining crime. Fortunately, the field of behav- ioral genetics has shed light on the interesting and often fascinating ways that genes and envi- ronments interact (Jang, 2005). Some of these mechanisms are spotlighted here. Gene–environment interaction occurs when a measured genetic factor interacts with a mea- sured environmental factor to produce a behav- ioral outcome. Passive gene–environment correlation occurs because children share heredity and home envi-
  • 79. ronments with family members and thus pas- sively inherit environments that are correlated with their genetic propensities. Evocative or reactive gene–environment correlation reflects the social and environmental inter- actions that occur due to the genetically influenced characteristics of the child. For example, a child with severe conduct disorder would have adverse interactions with parents, peers, and teachers, and it is those genetically produced traits that engender the reaction. Active gene–environment correlation occurs when individuals pick friends and social settings that are compatible with their underlying genetic propensities. This type of gene–environment correlation is also known as “niche building” or “niche picking.” The crux of criminological research using genetically informed designs is consistent with the diathesis-stress model. Genetic risk factors are most likely to contribute to criminal behavior when they are coupled with environmental risk factors. The landmark study that established this connection explored the association between variants of the MAOA gene and childhood maltreatment among a birth cohort in New Zealand. The MAOA gene encodes the MAOA enzyme that degrades neurotransmitters in the brain, including dopamine, serotonin, and norepinephrine. Those with a genetic defect in the MAOA gene who were abused as children were significantly likely to be diagnosed with conduct disorder, be convicted of a violent crime,
  • 80. display symptoms of APD, and have a violent disposition (Caspi et al., 2002). Similarly, another study was the first to utilize a criminal justice status as an environmental pathogen that interacts with genetic factors to produce crime. Using data from a nationally representative sample of American youth, DeLisi, Beaver, Vaughn, and Wright (2009) found that African American females with a variant of the dopamine receptor gene DRD2 who had a father who had been arrested were significantly likely to engage in serious delinquency and violent delinquency across two waves of data collection, and they were significantly likely to be arrested. These and thousands of other studies are quickly demonstrating—at the molecular genetic level—the intricate ways in which individual and environmental forces come together to pro- duce problem behaviors. Getty Images/Thinkstock If a child has parents who exhibit criminal behavior, there is a chance that genetics and environmental factors can combine to lead the child to his or her own criminal behavior later in life. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution.
  • 81. 87 Section 5.4 Temperament 5.4 Temperament Temperament has been defined in various ways. Famed personality researcher Gordon All- port (1961) conceptualized it as the characteristic phenomena of an individual’s nature, including his suscepti- bility to emotional stimulation, his customary strength and speed of response, the quality of his prevailing mood, and all the peculiarities of fluctuation and intensity of mood, these being phenomena regarded as dependent on consti- tutional make-up, and therefore largely hereditary in origin. (p. 34) Another well-known researcher, John Bates (1989), defines temperament as the fol- lowing: “Biologically rooted individual dif- ferences in behavior tendencies that are present early in life and are relatively stable across various kinds of situations and over the course of time” (p. 4). Although it has many varied definitions, temperament is broadly defined as the sta- ble, biologically based, usual ways in which a person regulates his or her behavior and interacts with the environment. There is general consensus that temperament refers to those aspects of personality that are
  • 82. innate rather than learned. For example, sensitivity level—or the degree to which a child is disturbed by changes in the environment— can be thought of as an aspect of temperament. A person’s mood—whether he or she has a generally happy or unhappy demeanor—is another inborn trait. Before we delve into the features of temperament and theories surrounding temperament and behavior, we first need to understand traits. A trait can be defined as a quality or charac- teristic that describes a person’s typical mood, behaviors, or way of being. Temperament and personality (discussed in the next section) are both trait perspectives that explain behavior by the set of characteristics an individual presents. Temperament researchers and personal- ity researchers both utilize traits in their conceptualizations of people. Temperament has a more physiological connotation to it that describes the usual ways that a person behaves and interacts with the environment. For example, people who are relaxed and emotionally stable differ in many ways from people who are anxious and emotionally unpredictable. Tempera- ment researchers focus on heart rate and other indicators of central nervous system func- tioning that are involved with a person’s overall arousal and alertness to the environment. Personality, on the other hand, has a more psychological connotation to it that describes the usual ways in which a person appears and interacts with others. Monkeybusinessimages/iStock/Getty Images Plus An individual’s behavior and interactions
  • 83. with his or her environment are aspects of temperament. © 2020 Zovio, Inc. All rights reserved. Not for resale or redistribution. 88 Section 5.4 Temperament Features of Temperament Over the past half century or so, several key researchers have developed their own models of temperament that, although distinct, tend to agree on the importance of a few essential con- structs (Goldsmith et al., 1987; Kagan, 1998, 2010; Rothbart, 2007, 2011; Thomas & Chess, 1977; Zentner & Bates, 2008). What follows are some additional integrative pieces of infor- mation about temperament that are useful for thinking about the ways it can contribute to both prosocial and antisocial types of behavior. • Temperamental features embody the individual differences that can be seen across the population and span the distribution of various traits from low to high. When certain negative temperamental features are found at pathologically high levels, and when those features are comorbid—or present along with other pathologically high nega- tive temperamental features—criminal behavior is more likely. For example, persons with high levels of negative emotionality, such as anger and