chapter 6: learning 1ch. 6. – relatively permanent change in behavior due to experience 1....
TRANSCRIPT
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Chapter 6: Learning
1Ch. 6
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–Relatively permanent change in behavior due to experience
1. Classical Conditioning: Pairing 2. Operant Conditioning: Consequence 3. Observational Learning: Watching
Ch. 6 2
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• Ivan Pavlov: we learn to associate two stimuli by pairing (experiments w/ dogs)
3Ch. 6
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Classical Conditioning Classical Conditioning
4Ch. 6
– Unconditioned Stimulus (UCS): Stimulus coming
from the environment that naturally triggers a response (automatic)
– Unconditioned Response (UCR): Reflex to the UCS, unlearned/naturally/automatically
– Neutral Stimulus (NS): has no relationship to the UCS or UCR but later gains power to trigger the CR
– Conditioned Stimulus (CS): aka previously neutral stimulus, through pairing w/ UCS becomes learned & triggers the CR
– Conditioned Response (CR): learned response to the conditioned stimulus
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5Ch. 6
Acquisition: The initial stage of learning Elicited: “Brings out” either automatically or involuntarily
Trial: Pairing of the UCS & NS
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6Ch. 6
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• Extinction: presenting the CS alone w/out UCS causing weakening/disappearance
• Spontaneous Recovery: reappearance of behavior, after a period of no exposure
• Stimulus Generalization: responding to similar stimuli
• Discrimination: responding to only a specific stimuli
7Ch. 6
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8Ch. 6
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• Stimulus Contiguity: occurring together in time and space
• Higher-Order Conditioning: building on an already conditioned behavior, to associate another conditioned stimulus. (1st to sound, then to color)
• Renewal Effect: if extinguished in another place, reappearance of the behavior if you return to the original environment
9Ch. 6
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10Ch. 6
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• John B. Watson: behavior learned through..• Little Albert: classically conditioned a baby to
fear a white rat, then any small fluffy thing.• UCS: Generalization?• UCR: Discrimination?• NS: Reversible?• CS: • CR:
11Ch. 6
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• Operant Conditioning: learning that is controlled by consequences
• Edward L. Thorndike (1913)• Law of Effect: behaviors followed by
favorable consequences become more likely & vice versa
• Puzzle Box: experiments w/ Cats taught escape learning
12Ch. 6
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13Ch. 6
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• B.F. Skinner (1953) – principle of reinforcement–Operant Chamber (Skinner Box):
complex or voluntary behaviors controlled my a machine
– Emission of response: voluntary – Reinforcement Contingencies: rules– Cumulative Recorder: graphs responses
14Ch. 6
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15Ch. 6
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• Acquisition: first time you learn • Shaping: reinforcing behavior that is close
too the desired goal • Chaining: reinforcing a series of behaviors
to get a reward• Extinction: weakening/disappearance of a
response (no consequence• Discriminative Stimuli: cues that
influence behavior (asking when in a good mood)
16Ch. 6
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17Ch. 6
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18Ch. 6
Positive: (+) Something Given
Reinforcement: Behavior Increases
Negative: (-) Something Taken
Punishment: Behavior Decreases
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19Ch. 6
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20Ch. 6
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• Positive Reinforcement• Negative Reinforcement
• Escape learning: learn to end aversion• Avoidance learning: learn to
prevent• Positive Punishment• Negative Punishment– Problems with punishment
21Ch. 6
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• Primary Reinforcers– Satisfy biological needs (needs)
• Secondary Reinforcers– Conditioned reinforcement (wants)
22Ch. 6
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• Continuous reinforcement• Intermittent (partial) reinforcement:
(leads to more resistance to extinction)
– Ratio schedules: Based on Response• Fixed Ratio• Variable Ratio
– Interval schedules: Based on Time• Fixed Interval • Variable Interval
23Ch. 6
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24Ch. 6
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• Conditioned Taste Aversion: John Garcia, taste-nausea & odder-nausea are impossible to prevent
25Ch. 6
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26Ch. 6
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• Albert Bandura: Observational learning through modeling– Models: people who demonstrate the
behavior
• 4 key processes– attention– retention– reproduction–motivation
27Ch. 6
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28Ch. 6