Lect+05+++02_02_10 - )zCh 3 Classical Conditioning...

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Unformatted text preview: (2-2-10)zCh 3. Classical Conditioning: FoundationszThe Early Years of Classical Conditioning •The Discoveries of Vul’fson and Snarskii•The Classical Conditioning Paradigm zExperimental Situations •Fear Conditioning•Eyeblink Conditioning•Sign Tracking Learning •What Tastes Good or Bad zExcitatory Pavlovian Conditioning Procedures •Common Pavlovian Conditioning Procedures •Measuring Conditioned Responses•Control Procedures for Classical Conditioning •Effectiveness of Common Conditioning ProcedureszInhibitory Pavlovian Conditioning•Procedures for Inhibitory Conditioning •Measuring Conditioned InhibitionExperimental SituationszExperimental Situations •Fear Conditioning•Eyeblink Conditioning•Sign Tracking Learning •What Tastes Good or BadFear conditioningWatsonFear conditioningFear conditioningzConditioned Emotional Response or conditioned suppression (CER)•Subjects: Typically rats•Shock (US) -> Cessation of behavior (UR)•Eating -> Shock (US) -> No longer eating (UR)•CER involves measuring level of suppression of behaviorzExample•Typical behavioral target – Lever pressing for food•Shock (US) -> Cessation lever pressing (UR)•1 minute of red Light (CS) -> Cessation lever pressing (CR) •With the first few US-CS parings, rat may orient to light•After a few pairings, decrease in lever pressing during minuteFear conditioningzNotes:•Rat described as “afraid”•Can calculate level of suppression by comparing pre and post CS lever pressing•Suppression ratio: CS responding (a)--------------------------------------------------------CS responding (a) + pre-CS responding (b)Ora/(a+b) Fear conditioningzNo suppression of responding = 0.50 (a=b)zWhen suppression is total = 0 (a =zero)zWe can measure the strength of conditioning by determining how close the suppression ratio is to 0,Fear conditioningQuickTime™ and aSorenson Video decompressorare needed to see this picture.Eye blink ConditioningzPuff of Air OR Electric shock (US) -> Eye blink (UR) •Potentiometer: Measures timing and magnitude of eye blinkEye blink ConditioningzEye blink conditioning develops when rabbits receive...
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This note was uploaded on 11/17/2011 for the course PSYCHOLOGY 830:311 taught by Professor Rovee-collier during the Spring '09 term at Rutgers.

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Lect+05+++02_02_10 - )zCh 3 Classical Conditioning...

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