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Unformatted text preview: Classical Conditioning - In training, a bell is sounded before a rat receives electric shock US - electric shock UR - freezing (fear) CS - bell CR - freezing (fear) Traditional View - Pure Association Stimulus is associated with Response, so CS is associated with US "Cognitive" View = Conditioned Stimulus predicts Unconditioned Stimulus and allows for appropriate preparation CS not equal to US ex. balloons, Pavlov's dogs US=drug UR=euphoria CS=situations associated with drug use-friends, -paraphernalia, -locations CR=compensatory physiological response to reduce impact of drug DRUG TOLERANCE INITIAL - drug -> euphoria US->UR TOLERANCE - drug -> euphoria CS (familiar surrounding) -> CR (dysphoria) so collectively, no change CRAVING - CS-> dysphoria (CS) Drug Tolerance CS+US -> CR + UR - neutral Drug Tolerant Individual - INCREASE dosage to overcome compensatory response CS + ^ US -> CR + ^ UR = overall euphoric possible overdose when new dosage used without CS ex. on vacation ^US -> ^UR = no CS, so no CR, so high euphoria without dysphoria...
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- Spring '08