Henry Rachllin Portfolio - Presentation Transcript
Freberg Discovering Biological Psychology 2e 2010
Cengage Learning
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Introducing Biological tionary standpoint, it seems unlikely that we would bother to evolve structures L E A R N I N G
Psychology
that did not contribute directly to our chances of survival. The human brain con- O B J E C T I V E S
tains 5 percent of the body’s mass, but it gobbles up 20 percent of its glucose and
After reading this chapter, you
oxygen resources. It wouldn’t seem sensible to build such an expensive structure should be able to
and then leave it virtually unused. Finally, observations of patients with brain dam- LO1 Define biological
age show that even small injuries, such as those caused by a concussion, can psychology.
Photo Title have a detrimental effect on brain functioning. A person who experienced damage LO2 Trace the major histori-
cal highlights in the study of
Why is it that you to 90 percent of the brain would likely be dead or, at a minimum, unable to emerge
the brain and nervous system.
can’t tickle yourself? from a coma.
LO3 Describe the major fea-
Although it may be disappointing to you to see the 10 percent myth debunked, tures of histological methods.
Researchers using a brain-
we suspect that this course in biological psychology will leave you with an enormous
imaging technique believe LO4 Distinguish between the
amount of respect for the real, scientifically demonstrated capacities of this remark- imaging techniques of CT, PET,
they have the answer. able organ, the human brain. MRI, and fMRI.
LO5 Describe the use of EEG,
MEG, evoked potentials, sin-
gle-cell recording, and patch
Biological Psychology as an clamp methods.
Interdisciplinary Field LO6 Describe the use of stim-
ulation and lesion
methods.
C H A P T E R
O U T L I N E B iological psychology is defined as an interdisciplinary area of study involving
psychology, biology, physiology, biochemistry, the neural sciences, and related
fields (Online Medical Dictionary, 2000). Researchers are specifically interested in
LO7 Summarize the methods
used to assess the biochemis-
Biological Psychology as an the relationships between the actions of the nervous system and observable behavior. try of the nervous system.
Interdisciplinary Field In this text, the topics explored will range from sleep to sexuality, from emotions to LO8 Identify the contri-
Highlights in the Biological learning, from hunger to psychopathology. In each of the topic areas, you will see butions made by studies
Psychology Timeline that the relationship between biology and behavior is circu tha team) drives biology involving twins, adoptions,
Interim Summary 1.1 (testosterone levels). and genetically engineered
■ WHY DOES THIS MATTER?
research animals to our under-
New Ethical Challenges
standing of the genetics of the
Regarding Stem Cell Research Highlights in the nervous system and behavior.
LO9 Summarize the major
Research Methods in
Biological Psychology
I N T R O D U C T I O N
Biological Psychology Timeline ethical concerns regarding the
use of human participants and
Histology
Y I n today’s world, we take for granted that the brain and nervous system are the sourc- animal subjects.
Autopsy OU HAVE PROBABLY HEARD THE POPULAR EXPRESSION, “YOU ONLY es of intellect, reason, sensation, and movement. This disarmingly simple fact has
Imaging
use 10 percent of your brain.” This little bit of misinformation has become part not been universally accepted throughout human history. Although some ancient
Recording
of our popular culture. It certainly would be nice to think that we all had a large observers came very close to the truth, periods of enlightenment were interspersed
Stimulation
with periods of remarkable misunderstandings.
Lesion chunk of brain awaiting more extensive use, perhaps for use in extrasensory per-
Our earliest ancestors apparently had at least a rudimentary understanding about
Pharmacological Methods ception (ESP) or in surviving those upcoming final exams. the brain’s essential role in maintaining life. Archaeological evidence of brain surgery
Genetic Methods
We’re not really sure where the 10 percent myth originated. Some writers suggests that as long as 7,000 years ago, people tried to cure others by drilling holes
Interim Summary 1.2
blame the work of Pierre Flourens, described later in this chapter. Perhaps by in the skull. The results of one such operation are shown in Figure 1.1. Because some
Research Ethics
skulls have been located that show evidence of healing following the drilling procedure,
Human Participants Guidelines showing that animals could still perform many functions with large parts of their
known as trephining or trepanation, we can assume that the patient lived through the
The Ethics of Research on the brains surgically removed, Flourens’s work may have led to the perception that procedure and that this was not a postmortem ritual. What is less clear is the intent of
Internet
all those parts really weren’t necessary after all. Other authors suggest that mis- such surgeries. Possibly, these early surgeons hoped to release demons or relieve feelings
Animal Subjects Guidelines
quotes of statements made by Albert Einstein and the philosopher/psychologist of pressure.
Interim Summary 1.3 Based on Egyptian texts believed to be at least 5,000 years old, the Edwin Smith
William James may be the original source of the myth.
■ NEW DIRECTIONS Surgical Papyrus represents the oldest known medical writing in history (Breasted,
New Ethical Challenges Regardless of the exact origin of the 10 percent myth, we know today that it 1930). In general, the Egyptians did not seem to view the brain as an important biological psychology An
Regarding Stem Cell Research is categorically false. Some of the new techniques discussed in this chapter for structure. During mummification, the brain was removed through the nostrils and inter- disciplinary area of study
replaced with rosin. Nonetheless, the Edwin Smith Surgical Papyrus contains a num- involving psychology, biology,
Thought Questions Key Terms imaging the brain show that separate parts of the brain may become more active
ber of rather modern-sounding observations regarding the structure and function of physiology, biochemistry, the
during different tasks but that each has its particular role to play. From an evolu neural sciences, and related fields.
of rather modern-sounding observations regarding the structure and function of the
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HENRY RACHLIN • BOOK DESIGN • 88 PARK AVENUE • ARLINGTON, MA • 02476 • hrachlin@comcast.net
Bernstein Psychology 8e 2009
Cengage Learning
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CHAPTER 1 Introducing Psychology
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Introducing Psychology
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take advantage of analogies, we must first recognize the similarities between current
and previous problems and then recall the solution that worked before. Most people
are surprisingly poor at recognizing such similarities (Anderson, 2000). They tend to
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concentrate on the surface features that make problems appear different.
ur goal in this opening chapter is to give you an overview of
psychology and its subfields and to show how psychology’s sub-
fields are linked to one another and to other subjects, such as economics FOCUS ON
RESEARCH METHODS Locating Analogical Thinking
and medicine. We then tell the story of how psychology came to be and the
various ways in which psychologists approach their work. We have organized he value of using analogies in problem solving was beautifully illustrated after
the chapter as follows: T the Hubble Space Telescope was placed in orbit around the Earth in 1990. It
was designed to take detailed photographs of distant galaxies, but because its main
Basic Functions of Thought mirror was not focusing light properly, the pictures were blurry. Then NASA engi-
000 neer James Crocker happened to notice the way a hotel room showerhead pivoted,
The Circle of Thought and it gave him the idea for a system of movable mirrors to correct for the flaw in
Measuring Information Processing
the Hubble’s mirror. When shuttle astronauts installed these mirrors in 1993, the
Mental Representations: The problem was solved (Stein, 1993).
Ingredients of Thought 000
Concepts What was the researchers’ question?
Propositions
Schemas, Scripts, and Mental Charles Wharton and his colleagues wanted to know what goes on in the brain
Models when people do this kind of analogical mapping—recognizing similarities between
Images and Cognitive Maps things that appear to be different and even unrelated (Wharton et al., 2000).
Thinking Strategies 000
Formal Reasoning How did the researchers answer the question?
Informal Reasoning The researchers knew that PET scan technology could show brain activity while par-
Problem Solving 000 ticipants performed an analogy task, but how could the researchers separate the
Strategies for Problem Solving activity associated with analogical mapping from everything else going on in
F OCUS O N R ESEARCH M ETHODS FIGURE 8.10 the brain at the same time? Their answer was to use a subtraction technique. They
Locating Analogical Thinking Comparing Stimulus Patterns asked people to perform two tasks—one after the other—that involved making
Obstacles to Problem Solving
Building Problem-Solving Skills The top row shows an example of the comparisons between patterns of rectangles, ovals, triangles, and other shapes. Both
Problem Solving by Computer stimulus patterns that were compared in tasks placed similar demands on the brain, but only one of them required the par-
Decision Making 000 an analogy task. Participants had to say ticipants to make analogies between the patterns (see Figure 8.10). {
Evaluating Options whether the pattern on the right is similar,
Biases and Flaws in Decision Making or analogous, to the one on the left. (In This time, Gatiss and his landlord called the Royal Society for the TRY
Naturalistic Decision Making this case it is, because even though the Prevention of Cruelty to Animals (RSPCA), whose inspectors heard the kitten THIS
specific shapes used in one pattern differ
L INKAGES : Group Processes in in distress and asked the fire brigade to return. They spent the next three days
Problem Solving and Decision from those in the other pattern, their shad-
searching for the cat. First, they tore down parts of the kitchen walls and ripped
Making ing and physical arrangement are similar.)
The bottom row shows an example of the up the floorboards. Next, they called in plumbing and drainage specialists, who
Language 000 patterns that were compared in a “same- used cables tipped with fiber-optic cameras to search remote cavities where a kit-
The Elements of Language ten might hide. Rescuers then brought in a disaster search team, which tried to find
different” task. Here, participants were
Understanding Speech
asked only to decide whether the two the kitten using acoustic and ultrasonic equipment designed to locate victims
The Development of Language
How Is Language Acquired? patterns are exactly the same (Wharton trapped in the debris of earthquakes and explosions. Not a sound could be heard.
T HINKING C RITICALLY : Can
et al., 2000). Increasingly concerned about how much longer the kitten could survive, the fire
Nonhumans Use Language? brigade tried to coax it from hiding with the finest-quality fish, but to no avail.
Culture, Language, and Suddenly, there was a burst of “purring,” which to everyone’s surprise (and the
Thought 000 landlord’s dismay), the ultrasonic equipment traced to the clock in the electric
oven! Later, the landlord commented that everyone had assumed that Gatiss’s
LINKAGES
hypothesis was correct—that the meowing sound came from a cat trapped some-
SUMMARY
where in the kitchen. “I just let them carry on. If there is an animal in there, you
have to do what it takes. The funniest thing was that it seemed to reply when we
called out to it” (London Daily Telegraph, 1998).
Often, people begin to solve a problem with only a vague notion of which
hypotheses to test. Suppose you heard a strange sound in your kitchen. It could
be caused by several things, but which hypotheses should you test, and in what
order?
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HENRY RACHLIN • BOOK DESIGN • 88 PARK AVENUE • ARLINGTON, MA • 02476 • hrachlin@comcast.net
Waner Applied Calculus 5e 2010
Cengage Learning
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CHAPTE R 2 REVI EW
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Chapter 2 Nonlinear Models
Non–Linear Models KEY CONCEPTS
Case Study Checking up on Malthus 2.1 Quadratic Functions and Models Alternative form of an exponential function: p. 137
A quadratic function has the form p. 114 Finding the exponential regression curve p. 137
In 1798 Thomas R. Malthus (1766–1834) published an influential pamphlet, later
The graph of is a parabola p. 115
expanded into a book, titled An Essay on the Principle of Population as It Affects The x-coordinate of the vertex is . 2.3 Logarithmic Functions and Models
the Future Improvement of Society. One of his main contentions was that popula- The y-coordinate is p. 115 The base b logarithm of x: means p. 143
2.2 Exponential tion grows geometrically (exponentially), while the supply of resources such as x-intercepts (if any) occur at p. 115 Common logarithm, , and natural logarithm, p. 144
Functions and food grows only arithmetically (linearly). Some 200 years later, you have been The y-intercept occurs at p. 115 Change of base formula p. 144
Models asked to check the validity of Malthus’s contention. How do you go about The parabola is symmetric with respect to the vertical line Solving equations with unknowns in the exponent p. 145
doing so? through the vertex. p. 115 A logarithmic function has the form p. 145
2.3 Logarithmic
Sketching the graph of a quadratic function p. 116 Graphs of logarithmic functions p. 146
Functions and
Application to maximizing revenue p. 117 Logarithm identities p. 147
Models
Application to maximizing profit p. 118 Application to investments (how long?) p. 147
2.4 Logistic Functions Application to half-life p. 148
Finding the quadratic regression curve p. 120
and Models Exponential growth and decay models and half-life p. 150
KEY CONCEPTS 2.2 Exponential Functions and Models Finding the logarithmic regression curve p. 150
An exponential function has the form p. 126
REVIEW EXERCISES
Recognizing exponential data p. 127 2.4 Logistic Functions and Models
CASE STUDY EXERCISES A logistic function has the form p. 156
Roles of the constants A and b in an exponential function p. 128
TECHNOLOGY GUIDES Finding the exponential curve through two points p. 130 Properties of the logistic curve p. 157
Application to exponential growth (epidemics) p. 130 Logistic function for small x, and the role of b p. 158
Application to compound interest p. 132 Application to epidemics p. 158
Application to exponential decay (carbon dating) p. 133 Finding the logistic regression curve p. 159
The number e and continuous compounding p. 134
REVIEW EXERCISES
T indicates exercises that should be solved using technology 17. T (1, 2), (3, 4), (4, 3), (5, 1)
In Exercises 1–10, sketch the graphs of the quadratic functions,
indicating the coordinates of the vertex, the y-intercept, and the 18. T (1, 2), (3, 4), (4, 3), (5, 1)
x-intercepts (if any). HINT [see Example 1]. 19. Trade with China The following chart shows the value of
1. f (x) = 4x 2 – 12x + 9 2. f (x) = 4x 2 – 12x + 9 U.S. trade with China for the period 1994–2004 ( represents
1994). HINT [see "Features of a Parabola", p. 115]
3. f (x) = –x 2 – 4x + 9 4. f (x) = 4x 2 – 12x + 9
5. f (x) = 4x 2 – 40x + 50 6. f (x) = 4x 2 – 10x + 100
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7. f (x) = 4x 2 – 12x + 9 8. f (x) = 4x 2 – 12x + 9
Graduates (millions)
2.8 2.8
9. f (x) = 4x 2 – 12x + 9 10. f (x) = 4x 2 – 12x + 9 2.7 2.75
2.6
2.6 2.5 2.5
Photo credit.
In Exercises 11–14, for each demand equation, express the total 2.4
revenue R as a function of the price p per item, sketch the graph 2.4
of the resulting function, and determine the price p that maxi-
2.2
mizes total revenue in each case.
Online you will find:
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Section by section tutorials 11. f (x) = 4x 2 – 12x + 9 12. f (x) = 4x 2 – 12x + 9 1993 1996 1999
A detailed chapter summary Year
13. f (x) = 4x 2 – 12x + 9 14. f (x) = 4x 2 – 12x + 9
A true/false quiz
a. If you want to model the trade figures with a function of
Additional review exercises T In Exercises 15–18, use technology to find the quadratic re- the form
Graphers, Excel tutorials, and other resources gression curve through the given points. (Round all coefficients
to four decimal places.) HINT [see Example 5] f (x) = 4x 2 – 12x + 9
Optional sections:
Inverse Functions 15. T (1, 2), (3, 4), (4, 3), (5, 1) would you expect the coefficient to be positive or nega-
Using and Deriving Algebraic Properties of Logarithms tive?
16. T (1, 2), (3, 4), (4, 3), (5, 1)
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HENRY RACHLIN • BOOK DESIGN • 88 PARK AVENUE • ARLINGTON, MA • 02476 • hrachlin@comcast.net
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