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Kassin Chapter 5
Learning
40
Psychology
Not Applicable
02/21/2005

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Term
Ethology
Definition
the study of animals in their natural habitats
Term
Fixed action pattern
Definition
A species-specific behavior that is built into an animal'a nervous system and triggered by a specific stimulus (instinctual behaviors)
Term
Learning
Definition
A relatively permanent change in knowlegde or behavior that comes about as a result of experience
Term
Habituation
Definition
The simplest form of learning; The tendency of an organism to become familiar with a stimulus as a result of repeated exposure (gradual reduction in stilmuation upon exposure, novelty wears off)
Term
Classical Conditioning
Definition
A type of learning in which an organism coms to associate one stimulus to another (also called Pavlovian conditioning)
Term
Association
Definition
Believed to be the key to learning- A tendency to connect events that occur together in space and time
Term
Unconditioned response (UR)
Definition
An unlearned response (salivating) to an unconditioned stimulus (food)
Term
Unconditioned stimulus (US)
Definition
A stimulus (food) that triggers an unconditioned response (salivation)
Term
Conditioned stimulus (CS)
Definition
A neutral stimulus (bell) that comes to evoke a classically conditioned response (salivation)
Term
Conditioned response (CR)
Definition
A learned response (salivation) to a classically conditioned stimulus (bell)
Term
Acquisition
Definition
The formation of a learned respense to a stimulus through the presentation of an unconditioned stimulus (classical conditioning) or reinforcement (operant conditioning)
Term
Forward, Simultaneous and Backward conditioning
Definition
Forward: CS then US, with slight overlap (best learning)
Simultaneous: same time (slow learning)
Bakcward: US then CS (no learning)
Term
Extinction
Definition
The elimination of a learned response by removal of the unconditioned stimilus (classical conditioning) or reinforcement (poerant conditioning)
Term
Spontaneous reconvery
Definition
the reemergence of an extinguished conditioned response after a rest period (rebounf effect)
Term
Stimulus Generalization
Definition
The tendency to respond to a stimulus that is similar to the conditioned stimulus
Term
Discimination
Definition
In classical and operant conditioning, the ability to distinguish between different stimuli (black and gray square)
Term
S-O-R Psychology
Definition
An observable and measurable stimulus acts on the organism, bringing about an overt response
Term
Biological preparedness
Definition
The natural preparedness to learn some CS-US associations easier than others, eg maple-flavoured ice cream is the 'scapegoat' for chemotherapy to prevent food aversions
Term
4 Fear Modules
Definition
1) highly selective, making us snesitive to some objs eg thunder, but not others
2) elicit fear responses that are 'autonomic', requiring little attention, thought or effort
3) responses are hard to consciously control or avoid
4) the modules are controlled by the amygdala and hippocampus, primitive subcortical limbic structures shared by all mammals
Term
Cognitive representations
Definition
The organism learns to predict and expect stimuli after conditioning. it uses 'higher oder thinking' or preconceptions to form a sophisticated representation of its world (thus taste-food aversion and light/sound-electric shock associations)
Term
Little Albert experiment
Definition
John Watson and Rosalie Rayner made loud crashing noise then presented a white lab rat to baby- classical conditioning of fear.
Term
The Law of Effect by Throndike
Definition
responses followed by positive outcomes are repeated, whereas those followed by negative outcomes are not
Term
Operant conditioning
Definition
the process by which organisms learn to behave in ways that produce reinforcement. can be Positive or Negative
Term
Reinforcement
Definition
in operant conditioning, any stimulus that increases the likelihood of a prior response
Term
Punishment
Definition
in operant conditioning, any stimulus that decreases the likelihood of a prior response
Term
Shaping
Definition
A procedure in which reinforcements are used to gradually guide an animal or person toward a specific behavior
Term
Schedules of reinforcement
Definition
Fixed-Interval (FI)
Variable-Interval (VI)
Fixed-Ratio (FR)
Variable-Ratio (VR)
Term
Fixed-Interval (FI)
Definition
The delivery of reinforcement is at a fixed time, e.g FI-10 ie ten minutes between each release
Term
Significance of Little Albert's experiment
Definition
Established the link between Pavolov's salivating dogs and the human experience- indicated tt humans fear objects or places due to aversive past experiences they are associated with.
Term
Variable-Interval (VI)
Definition
The delivery of reinforcement is at a random, averaged pattern
Term
Fixed-Ratio(FR)
Definition
A reinforcer is administered after a fixed number of responses e.g frequent flier programs, or free CD after 5th purchase
Term
Variable-Ratio (VR)
Definition
The reinforcement appears after some average number of responses e.g. slot machines
Term
Partial-Reinforcement Effect
Definition
The tendency for partial reinforcement to strengthen later resistance to extinction
Term
Discriminative Stimulus
Definition
A stimulus that signals the availability of reinforcement
Term
Instinctive drift
Definition
the tendency for different organisms to revert to species-specific behavior despite reinforcement
Term
Latent learning
Definition
Learning tt occurs but is not echibited in performance till there is incentive to do so
Term
Observational learning
Definition
Learning that takes place when one observes and models behavior of others
Term
4 steps of Modeling
Definition
1) Attention
2) Retention-recall of observation
3)Reproduction- motor ability to imitate
4)Motivation
Term
Bandura's study on observational learning
Definition
Adult modeled aggressive behavior on a Bobo doll in front of children 3-6 years. Children exposed to model imitated behavior, but control children did not. the children acquired a whole repetoire of aggressive behavior through observation
Term
Information-processing model
Definition
A Model of memory in which information must pass through discrete staged via
1)Attention
2)Encoding
3)Storage in the brain
4)Retrieved at a later time
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