psy101 - chapter 5 reviewer
TRANSCRIPT
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after repeatedly being paired with the unconditioned stimulus, it
causes the same reflexive response, making it CONDITIONED
STIMULUS [CS] .
4. CONDITIONED RESPONSE : comes as a response to the conditionedstimulus, so the response may not be as strong as the unconditioned
response.
BASIC PRINCIPLES The conditioned stimulus must come before the unconditioned
stimulus. Both stimuli must come almost simultaneously [ ANTECEDENT
STIMULI ]. Longer interval, no response, but it depends on the natureof the conditioning task.
Neutral stimulus must be paired with the unconditioned stimulus
before conditioning happens. The conditioned stimulus is distinctive and it must stand out from
other competing stimuli.
STIMULUS GENERALIZATION : Similar stimulus to the conditioned
stimulus will not cause exactly the same responsethe closer it is the
conditioned stimulus, the closer the response.
STIMULUS DISCRIMINATION : Pavlov did not give dogs food if they
responded to a general stimulus, and they learned the exact sound. Thus, an
organism learns to respond to different stimuli in different ways.
EXTINCTION : disappearance or weakening of a learned response
following the removal or absence of the unconditioned stimulus [in classical
conditioning] or [in operant conditioning].
REINFORCER : any event or object that, when following a response,
increases the likelihood of that response occurring again.
SPONTANEOUS RECOVERY : the reappearance of a learned response
after extinction has occurred.
HIGHER-ORDER CONDITIONING : occurs when a strong conditioned
stimulus is pared with a neutral stimulus. A conditioned stimulus plays the
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part of the unconditioned stimulus and the neutral stimulus becomes a
second conditioned stimulus.
CONDITIONED EMOTIONAL RESPONSES [CER] are emotional
responses that have become classically conditioned to occur to learnedstimuli.
BEHAVIOURISM : John Watson said that all behaviour could be
learned, that all PHOBIAS , or irrational fear responses, could be
explained in learning. VICARIOUS CONDITIONING : classical conditioning of a reflex
response learned by watching another persons reaction.
OTHER CONDITIONED RESPONSES1. CONDITIONED TASTE AVERSION : liquid or food that shouldnt
taste bad eventually does because of the liquid or food that comes
after.
2. BIOLOGICAL PREPAREDNESS : survival mechanism where you
avoid food by smell or taste that was digested before becoming ill.
WHY DOES CLASSICAL CONDITIONING WORK ? STIMULUS SUBSTITUTION : activated same place in brain by
association. COGNITIVE PERSPECTIVE : Conditioned stimulus must provide
some kind of information about the coming of the unconditioned
stimulus in order to achieve conditioning.
OPERANT CONDITIONING is the kind of learning that applies to voluntary
behaviour.
EDWARD THORNDIKE : Cat, lever, box; the cat had to learn to push the
leaver, but Thorndike kept moving it around, and each time the cat would
learn to look for it in the place where it previously was. LAW OF EFFECT :
If an action is followed by a pleasurable consequence, it tends to be
repeated. If its followed by a displeasing consequence, it wont be.
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B.F. SKINNER : operant is any behaviour that is voluntary. The heart of
operant conditioning is the effect of consequences on behaviourlearning
depends on what happens after the response.
REINFORCEMENT : any event or stimulus that when following a responseincreases the probability that the response will occur again. It is the key to
learning in operant conditioning. PRIMARY REINFORCER : naturally reinforcing by meeting a basic
biological need like hunger or thirst. SECONDARY REINFORCER : reinforcer that reinforces by pairing
with a primary reinforcer. Personally, that makes no sense
grammatically, but okay nalang. NEGATIVE AND POSTIVE REINFORCEMENT : it all boils down to
two kinds of consequencesthings they like and things they dont
like. Positive is adding, whether reward or punishment; negative is
subtracting, whether reward or punishment.
o PUNISHMENT BY APPLICATION : occurs when something
unpleasant is added to the situation.
o PUNISHMENT BY REMOVAL : punishment of a response by theremoval of the pleasurable stimulus.
o PROBLEMS WITH PUNISHMENT
1. Only suppresses behaviour temporarily.
2. Punisher may be avoided instead of the punishment.
3. Lying to avoid punishment.
4. Punishment creates fear and anxiety, emotional
responses that dont promote learning.
5. Hitting encourages aggression. Behaviour by
modeling.
o HOW TO MAKE PUNISHMENT EFFECTIVE
1. Punishment should immediately follow behaviour.
2. Punishment should be consistent.
3. Punishment of wrong behaviour should be paired with
reinforcement of correct behaviour.
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SHAPING : reinforcement of simple steps in behaviour that lead to a
desired, more complex behaviour. EXTINCTION : removal of the reinforcement.
DISCRIMINATIVE STIMULUS : any stimulus that provides a cue formaking a certain response to obtain reinforcement.
PARTIAL REINFORCEMENT EFFECT : the tendency for a response
that is reinforced after some, but not all, correct responses to be
resistant to extinction. Better for ze long term. CONTINUOUS REINFORCEMENT : the reinforcement of each and
every correct response. Will learn more quickly but heh, so whut.
FIXED : the same in eachcase.
VARIABLE : a differentnumber or interval is
required in each case.
INTERVAL
SCHEDULE : timing
of the response.
FIXED INTERVAL
SCHEDULE OF
REINFORCEMENT :
reinforcer is received after
a certain fixed interval of
time has passed. Does not
produce a fast rate of
responding.
VARIABLE SCHEDULE
OF REINFORCEMENT :
schedule of
reinforcement in which
the interval of time that
must pass before
reinforcement becomes
possible is different for
each trial or event.
RATIO SCHEDULE :
certain number of
responses required
for reinforcement.
FIXED RATIO SCHEDULE
OF REINFORCEMENT :
the number of responses
required to receive
reinforcement is always the
same number. Fast rate of
responding.
VARIABLE SCHEDULE
OF REINFORCEMENT :
the number of
responses changes
from one trial to the
next. Rapid change in
response.
INSTINCTIVE DRIFT : tendency to revert back to genetically controlled
patterns.
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BEHAVIOUR MODIFICATION : application of operant conditioning to
change undesirable behaviour into desirable behaviour. TOKEN ECONOMY : use of tokens to modify behaviour.
APPLIED BEHAVIOUR ANALYSIS [ABA] : modern term for a form ofbehaviour modification that uses the shaping process to mold a
desired behaviour or response. BIOFEEDBACK : feedback of a persons biological information [such
as heart rate] to create a modification plan. NEUROFEEDBACK : trying to change brain-wave activity.
COGNITIVE LEARNING THEORY involves the thoughts, feelings,
expectations that influence observable behaviour and eventually begin to
develop a cognitive learning theory to supplement the more traditional
theories of learning.
EDWARD TOLMAN : Gestalt psychologist with his rat maze. First rat
group had reinforcement, second rat group only had reinforcement on the
tenth day and OMG OMG OMG SHOCKED ZE WORLLLDDDD when they
solved the maze almost immediately, the third group had no reinforcement
whatsoever. LATENT LEARNING : information remained latent until there was a
reason to use it. Rats created a COGNITIVE MAP in their minds.
WOLFGANG KOHLER : Gestalt psychologist. Sultan the chimp with the
banana that he could reach with his arm, then with a stick, then with two
sticks. INSIGHT : the sudden perception of relationships among various parts
of a problem allowing the solution to come more quickly.
MARTIN SELIGMAN : harnessed dogs were shocked. When put in a large
group with a jumpable fence and no harness, they stayed in place. LEARNED HELPLESSNESS : the tendency to fail to act on a situation
because of a history of failure.
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OBSERVATIONAL LEARNING is learning new behaviour by modeling.
ALBERT BANDURA AND THE BOBO DOLL : Child played with the toys
minded by the models. Reinforcement? The kids that were shown a rewardcopied the model beating up the Bobo doll. The ones who were shown a
punishment did not copy the model until they were given a reward.
FOUR ELEMENTS
1. ATTENTION : learner must pay attention. Certain characteristics of
models can make attention more likely.
2. MEMORY : learner must retain memory of what was done; in other
words, remembering steps.3. IMITATION : learner must be capable of imitating.
4. MOTIVATION : learner must have desire or motivation to perform the
action.