PSYC 2330 Lecture Notes - Lecture 5: Uvb-76, Classical Conditioning, Fear Conditioning
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Signal (s) significant event (s*) Cs us = conditioned excitation; the cs is an excitor (cs+) Dog is shown treats (unconditioned stimulus) sits, jumps, attentive (all. Bird noise (conditioned stimulus) followed by treat; bird noise will become the cs+ and will elicit a conditioned response (salivation, sits, attentive, etc. ) Cs-no us = conditioned inhibition; the cs is an inhibitor (cs-) Step 2: cs1 (tone) + cs2 (light) no us. Can be tested by 2 test procedures: summation test: cs (buzzer) + cs2 (light) = no cs to cs (buzzer) Pseudo-conditioning: increased responding to the cs that might occur because of mere exposure to the us (food). Give the dog enough food that it begins salivating to anything because it expects a continuous flow of food. Solution: tone + food in a random pattern (food, tone, food, tone, tone tone tone, food food food, wait, food, tone, etc. ) Sensitization to the cs: being exposed to the tone enough causes the response.
