PSYC 2330 Lecture Notes - Lecture 17: Oxford University Press
12 Dec 2015
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Removing a stimulus and behaviour increases o o. Removal of an aversive stimulus escape & avoidance. Subject learns to escape and as you learn you avoid. Performing behaviour but encountering biologically significant stimulus spider on rock throwing rock. Animal learns to escape after a couple trials. Will jump every time the warning stimulus is presented. Paradox because the behaviour continues even without the biologically significant stimulus (shock) Factor 1: pavlovian fear conditioning: shock (us) ---- fear (ur) freezing is fear in this case, tone (cs) shock (us) occurs in the presence of each other, tone (cs) ------ fear (cr) Jumping >> turning of tone = reinforcing, reduction of fear warning stimuli. Drugs remove an aversive state (social anxiety, stress, etc. ) and reinforces. Dogs trained on a sidman avoidance task (no tone, shock on a fi) Discriminative fear conditioning: cs1 shock and cs2 no shock. Test the efect of cs1 and cs2 on avoidance responding o o.
