2. Burrhus Frederic Skinner
1904 – 1990
American psychologist,
inventor, social
philosopher, poet
Bachelor: English
Literature (Hamilton
University)
Master: Psychology
(Harvard University)
Doctorate: Psychology
(Harvard University)
professor of Psychology
inHarvard University
2
3. Theories on L1 Acquisition
Nativism Functionalism Behaviorism
•N. Chomsky •J. R. Firth •B. F. Skinner
•language is innate (LAD) •language is developed •language is learned
through simultaneous through operant
interaction & innate conditioning
cognitive capacity
3
4. Behaviorial Theory
behaviors, such as acting, thinking, and feeling,
can be scientifically observed and measured
Language, as a behavior, is a set of habits
acquired by operant conditioning and
reinforcement
developed by B. F. Skinner, among others
4
5. Language
a subset of other learned behaviors
a set of associations between meaning and
word, word and phoneme, and statement and
response
is learned or conditioned through association
between a stimulus and the following response
a verbal behavior modified by the environment
5
6. Language
the ―how‖ of language is more important than
the ―what‖ of language form
a child learns language ―when relatively
unpatterned vocalizations, selectively
reinforced, gradually assume forms which
produce appropriate consequences‖
6
8. Operant Conditioning
the strength of the stimulus-response bond
determines the probability of occurrence of a
certain response
all behavior is learned or operant
8
9. Operant Conditioning
complex linguistic behaviors represent chains or
combinations of various stimulus-response
sequences
behavior is modified or changed by the events
that follow or are contingent upon that
behavior
9
10. Operant Conditioning
if a particular response is reinforced, it then
becomes habitual
thus, children produce linguistic responses that
are reinforced, and loses those that are left out
10
11. Reinforcer
any event that increases the probability of
occurrence of a preceding behavior
11
12. Positive Reinforcers
benefits the person receiving it
examples:
praising
repetition
frequent exposure
material reward
12
13. Negative Reinforcers
has no value to the person receiving
causes the recipient to try to ‗escape‘ from it
Examples:
physical punishment, discomfort
criticism and scolding
negative reinforcers ≠ punishment
punishment
occurs after a certain behavior has occurred
13
14. Operant Conditioning
complex behavior are learned by:
1. chaining - a sequence of behavior is trained in
such a way that each step serves as a stimulus
for the next
2. shaping - a single behavior is gradually
modified by reinforcement of ever-closer
(successive) approximations of the final
behavior
thus, language results from the active role of the
environment
the learner is secondary to the process
14
15. Operant Conditioning
once acquired, a behavior requires only
occasional reinforcement to be strengthened
and maintained
speech sounds that are ignored are produced
less frequently and eventually disappear
Extinction
process of decreasing a behavior without
punishment
15
17. Skinner Box
•aka operant
conditioning chamber
•used to contain
animals such as rats or
pigeons
•study behavior
conditioning (training)
by teaching a subject
animal to perform
certain actions (like
pressing a lever) in
response to specific
stimuli, like a light or
sound signal
17
18. Skinner Box
•when the subject
correctly performs
the behavior, the
chamber
mechanism
delivers food or
another reward
•the mechanism
delivers a
punishment for
incorrect or
missing responses
18
19. Rat Experiment
1. the rat that was placed in the box did not
know what the lever was for at first
2. the rat pressed the lever, food eventually
came out
3. the rat (when it gets hungry) continue to press
the lever, and gets satisfied with the food
19
20. Rat Experiment
this is operant behavior because this is an action
that results with a consequence
the food acts as a reinforcer because it causes
the operant behavior to increase
20
21. Rat Experiment
operant behavior may come to the points of its
extinction
1. the rat continues to press the lever and yet
food does not come out
2. the rat will eventually cease on pressing the
lever, thus stopping an operant behavior
21
22. Instead of punishing behavior, it is better to
simply take off the reinforcers that cause that
certain behavior. By doing so, the doer of the
behavior will not see the value of his actions,
because the reinforcers have been taken away
from him. The behavior will gradually start to
fade away.
22
24. Language Acquisition
word learning is more complex
mother has become discriminative stimulus (SD),
a stimulus in the presence of which ―mama‖ will
be reinforced
a bond is built between the referent ―mother‖
and the word mama
meaning is attached to the speech sound
24
25. Language Acquisition
more complex responses are learned through
successive approximation
language learning is based on learning,
imitation, practice, and selective reinforcement
longer sentences are also learned through
imitation and chaining
by hearing and imitating enough examples, the
child learns word associations rather than
grammatical rules
25
26. Language Acquisition
a child acquires grammar by learning these
frames or chains, in which each word acts as a
stimulus for the next, thus, grammatical units are
controlled by surrounding words
grammar is developed through the learning of
structured phrases and sentence frames
syntactic and semantic ―slots‖ within each
frame are filled by substituting words or phrases
that fulfill the same requirements
26
27. Language Acquisition
word ordering is learned as adults reinforce
chains of symbols that are increasingly more
adult-like
early language behavior is not rule governed
but rather shaped by the contingencies of the
environment
27
28. Children would make errors
complex linguistic behaviors represent chains or
combinations of various stimulus-response
sequences
behavior is modified or changed by the events
that follow or are contingent upon that
behavior
28
32. Limitations and Loopholes
children will utter words that even adults do not
say
children would not know the duality property of
language
children would not know syntax
32
33. Limitations and Loopholes
retention of negative language (e.g., cuss
expressions)
no reinforcement on abstract ideas
highly dependent on adult control
33
34. Summary(yey~)
language is a behavior
as a behavior, it requires reinforcers and stimuli
from the environment
reinforcers may be positive or negative, primary
or secondary
languages can be unlearned by putting away
the stimuli/reinforcers
34
35. Owens, Robert. Language Development: An Introduction.
New York: Merill, 1992.
Skinner, Buhhrus Frederic. About Behaviorism. New York:
Random House, 1974.
—. Verbal Behavior. New York: Random House, 1957.
35
36. Prepared by:
Mejia, Coltz
Mendoza, Olive
Moulic, Ezra
Mutya, Daryll
Muyano, Jo
Presentation prepared for BLL 102 (Theories of Language and Language
Acquisition) under Prof. Rosario Florendo
36