PS261 Chapter Notes - Chapter 9: Overtraining, Fear Conditioning, Conditioned Taste Aversion
Document Summary
Extinction involves omitting us or reinforcer. Forgetting loss of responding may also occur because of this, not always because of extinction. Effects of extinction procedures: can happen because of two reasons. Target response decreases when response no longer results in reinforcement. Increases response variability (in the beginning: laboratory rats study (neuringer, kornell and olufs 2001) One group reinforced for varying response sequences, got food if they varied response. Yoke group got food as long as they did three responses. Groups were then shifted to extinction procedure, no matter what they did, no food. Produced decline in response in both groups. Increases in response variability in both groups: extinction produces strong emotional effects. Become upset when reinforcers no longer delivered. Frustration induced by withdrawal of an expected reinforcer: may be strong enough to induce aggression. Can be a problem when extinction used in behaviour therapy. Extinction and original learning: does not reverse acquisition.
