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Chapter 4
Learning
35
Psychology
Undergraduate 1
12/11/2010

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Term
classical conditioning
Definition
acquiring a new response to a previously neutral stimulus
Term
unconditioned stimulus
Definition
automatically elicits and unconditioned response
Term
unconditioned response
Definition
automatically elicited by the unconditioned stimulus
Term
conditioned stimulus
Definition
the stimulus that comes to elicit a new response
Term
conditioned response
Definition
the response that is elicited by the conditioned stimulus in classical conditioning
Term
delayed conditioning
Definition
a procedure in which the conditioned stimulus precedes the unconditioned stimulus and remains present until after the unconditioned stimulus is presented so that the two stimuli occur together
Term
trace conditioning
Definition
a procedure in which the conditioned stimulus precedes the unconditioned stimulus but is removed before the unconditioned stimulus is presented so the two stimuli do not occur together
Term
acquisition
Definition
a new, learned response elicited by the CS in preparation for the arrival of the UCS
Term
extinction
Definition
the diminishing of the conditioned response when the unconditioned stimulus no longer follows the conditioned stimulus
Term
law of effect
Definition
a principle developed by Edward Thorndlike that says that any behavior that results in satisfying consequences tends to be repeated and that any behavior that results in unsatisfying consequences tends not to be repeated
Term
reinforcer
Definition
a stimulus that increases the probability of a prior response
Term
punish
Definition
a stimulus that decreases the probability of a prior response
Term
appetitive stimulus
Definition
pleasant
Term
aversive stimulus
Definition
unpleasant
Term
positive reinforcement
Definition
the appetitive stimulus is presented
Term
positive punishment
Definition
aversive stimulus is presented
Term
negative reinforcement
Definition
aversive stimulus is removed
Term
negative punishment
Definition
appetitive stimulus is removed
Term
primary reinforcer
Definition
a stimulus that is innately reinforcing
Term
secondary reinforcfer
Definition
a stimulus that gains its reinforcing property through learning
Term
behavior modification
Definition
the application of classical and operant conditioning principles to eliminate undesirable behavior and to teach more desirable behavior
Term
shaping
Definition
train a human or animal to make an operant response by reinforcing successive approximations of the desired response
Term
acquisition
Definition
the strengthening of a reinforced operant response
Term
partial-reinforcement effect
Definition
the finding that operant responses that are reinforced on partial schedules are more resistant to extinction than those reinforced on a continuous schedule
Term
fixed-ratio schedule
Definition
a partial schedule of reinforcement in which a reinforcer is delivered each time a fixed number of responses are made. The fixe
Term
variable-ratio schedule
Definition
a partial schedule of reinforcement in which the number of responses it takes to obtain a reinforecer varies on each trial but averages to a set number across trials.
Term
fixed-interval schedule
Definition
a partial schedule of reinforcement in which a reinforcer is delivered after the first response is given once a set interval of time has elapsed
Term
variable-interval schedule
Definition
a partial schedule of reinforcement in which the time that must elapse on each trial before a response will lead to a delivery of a reinforcer varies from trial to trial averages to a set time across trials
Term
drive-reduction theory
Definition
a theory of motivation which prposes that our behavior is motivated to reduce drive created by unsatisfied bodily needs to return the body to a balanced internal state
Term
incentive theory
Definition
a theory of motivation which proposes that our behavior is motivated by incentives, external stimuli that we have learned to associate with reinforcement
Term
arousal theory
Definition
a theory of motivation which proposes that our behavior is motivated to maintain an optimal level of physiological arousal
Term
Yerkes-Dodson Law
Definition
a law describing the relationship between the amount of arousal and the performance quality on a task--increasing arousal up to some optimal level increases performance quality on a task, but increasing arousal past this point is detrimental to performance
Term
overjustification effect
Definition
a decrease in an intrinsically motivated behavior after the behavior is extrinsically reinforced and then the reinforcement discontinued
Term
instinctual drift
Definition
the tendency for an animal to drift back from a learned operant response to an innate, instinctual response to an object
Term
latent learning
Definition
learning that occurs but is not demonstrated until there is incentive to do so
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