Chapter 5 Notes

Chapter 5 Notes - Chapter5:Learning o : o PavlovsDiscovery...

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Chapter 5: Learning Learning - the modification of preexisting behavior and understanding o The relatively permanent change in behavior or knowledge due to experience Classical Conditioning: Learning Signals and Associations o Pavlov’s Discovery Ivan Petrovich Pavlov Russian physiologist Won Nobel Prize in 1904 for research on a dog digestive system Noticed that the dogs would salivate when they saw the assistant who normally  brings food Made an experiment to determine why the salivation occurred 3 phases o Phase 1: when the meat powder was put into the dog’s mouth, the  dog automatically salivated. They also noted that when the musical  tone was played, the dog did nothing o Phase 2: the tone was sounded just before the meat powder was put  into the dog’s mouth. The dog salivated and this was repeated  several times o Phase 3: the tone was sounded but no meat powder was put into the  dog’s mouth. The dog still salivated Classical conditioning - a procedure in which a neutral stimulus is paired with a  stimulus that triggers a reflexive response until the neutral stimulus alone comes to  trigger a similar response Neutral stimulus- tone Triggering stimulus- meat powder Reflexive response- salivation Unconditioned stimulus(UCS) - a stimulus that triggers a response without  conditioning Unconditioned response(UCR) - the automatic, unlearned, reflexive reaction to a  stimulus Conditioned stimulus(CS) - an originally neutral stimulus that now triggers a  conditioned response Conditioned response(CR) -the response triggered by the conditioned stimulus o Conditioned Responses Over Time: Extinction and Spontaneous Recovery
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If the conditioned stimulus is no longer paired with the unconditioned stimulus, the  conditioned response with gradually disappear Extinction - the gradual disappearance of a conditioned response If the conditioned stimulus and the unconditioned stimulus are paired together again  after the conditioned response has been extinguished, that conditioned response will  return to its original strength after a few tries Reconditioning - the relearning of a conditioned response following  extinction After a CR has been extinguished it will temporarily reappear if the CS occurs again Spontaneous recovery - the temporary reappearance of a CR after  extinction o Without further CS and UCS pairing The longer the time between extinction and the reappearance of the CS, the stronger  the CR o Stimulus Generalization and Discrimination Stimulus generalization - a process in which a conditioned response is triggered by  stimuli similar to the original conditioned stimulus
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This note was uploaded on 11/13/2011 for the course PSY 0010 taught by Professor Joshuafetterman during the Summer '08 term at Pittsburgh.

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Chapter 5 Notes - Chapter5:Learning o : o PavlovsDiscovery...

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