Psychology 1000 Lecture Notes - Contiguity, Reinforcement, Classical Conditioning

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Prof

Document Summary

Arousing stimulus (e. g. music) --> positive feelings --> positive evaluation. Arousing stimulus (e. g. music) --> neutral stimulus (stranger) --> positive (like music) evaluation (like stranger) Higher attractiveness if positive music is playing in the background. Response strength: latency (cs - cr, output measure. Cs occurs at same time as ucs: backward pairing. Forward pairing is best with cs - ucs. Pair primary cs with another neutral stimulus (secondary cs) Not very effective cs - ucs bond is no longer reinforced. Note: index of strength, cs - ucs bond not unlearned. Degree of responding to stimuli similar to training stimulus. Dominant response: choose and reinforce some target response, stimulus situation. Rat presses bar --> reward (food) is delivered --> bar pressing increases. Rat presses bar --> aversive stimulus (shock) removed --> bar pressing. Rat presses bar --> aversive stimulus (shock) delivered --> bar pressing. Rat presses bar --> pleasant stimulus (food) is removed --> bar pressing increases decreases decreases.