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Published byCori Davidson Modified over 5 years ago
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Learning Definition: a relatively permanent change in a organism’s behavior due to experience. Early work in modern psychology focused on overt behavior (i.e., observables) and was not concerned with what went on in the learner’s head.
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Classical (Pavlovian) Conditioning
Before Conditioning Food Unconditioned Stimulus Salivation Unconditioned Response elicits AND Bell Neutral Stimulus elicits NOTHING
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Classical (Pavlovian) Conditioning
During Conditioning PRECEDES Salivation Unconditioned Response Bell Neutral Stimulus Food Unconditioned Stimulus elicits
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Classical (Pavlovian) Conditioning
After Conditioning Bell Conditioned Stimulus Salivation Conditioned Response elicits
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A Human Example ...
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A Human Example Before Conditioning Gift Happy elicits Unconditioned
Stimulus Happy Unconditioned Response elicits AND Person Neutral Stimulus elicits NOTHING
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A Human Example During Conditioning PRECEDES Happy Unconditioned
Response Person Neutral Stimulus Gift Unconditioned Stimulus elicits
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A Human Example After Conditioning Person Conditioned Stimulus Happy
Response elicits
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Some specifics ...
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Acquisition and Extinction
Learning 09/15/99 Acquisition and Extinction (NS-US pairings) Figure 5.5 from: Kassin, S. (1998). Psychology, second edition. Upper Saddle River, NJ: Prentice Hall. Source: ©1999 Prentice Hall 8
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Updating Pavlov Effect of cognitive processing?
“Anabuse” Biological Predispositions acquired taste aversions (but not light)
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Operant (Skinnerian) Conditioning
How does this differ from Pavlovian? Pavlov = associating stimuli Skinner = associating behaviors and consequences “Law of Effect” rewarded behavior is more likely to recur punished behavior is less likely to recur
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What if the person won’t do the desired behavior?
Shaping: a procedure in which rewards gradually guide an animal’s behavior toward a desired behavior. (video)
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Types of Reinforcers Positive Negative Primary Secondary
presenting a stimulus Negative not the same as punishment removing a stimulus Primary innately satisfying Secondary satisfying by association w/ primary reinforcer
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Reinforcement Schedules
Continuous every time Partial sometimes, sometimes not Fixed-ratio - after set # of responses Variable-ratio - after variable # of response Fixed-interval after fixed period of time Variable-interval after variable period of time
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Learning 09/15/99 Hidden Cost of Rewards Preschoolers played with felt-tipped markers and observed Divided into 3 groups: Given markers again and asked to draw Promised a reward for playing with markers Played with markers, then rewarded Figure 5.17 from: Kassin, S. (1998). Psychology, second edition. Upper Saddle River, NJ: Prentice Hall. Source: Lepper, M.R., Greene, D., & Nisbett, R.E. (1973). Undermining children’s intrinsic interest with extrinsic reward: A test of the “overjustification” hypothesis. Journal of Personality and Social Psychology, 28, ©1999 Prentice Hall 21
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Observational Learning
Bandura’s experiments Child observes aggressive behavior when someone else is mad Child displays aggressive behavior Child angered
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