PSYC 2330 Lecture Notes - Lecture 9: Somatic Nervous System, Sucrose, Gastrointestinal Disease

• School: University of Guelph
• Department: Psychology
• Course: PSYC 2330
• Professor: Francesco Leri

Document Summary

Inborn predispositions to learn were demonstrated with respect to: the separation in time between the cs and us is a critical determinant of conditioning. Learning is unlikely to take place at delays of more than a few second: equipotentiality premise - it does not matter what stimuli are used in conditioning. Any cs will be equally good in all contexts. Pavlov: any natural phenomenon chosen at will may be converted into a csany visual stimulus, any desired sound, any odor, and the stimulation of any part of the skin . Taste-aversion learning - john garcia: exposed rats to avored water and bright-noisy water, exposed rats to x-rays gastrointestinal disturbance + nausea, tested drinking of the two waters after x-ray exposure, control experiment with foot shock. Nausea could not be conditioned to light-noise, nor fear could be conditioned to a taste. Taste-aversion conditioning occurs at delays of over 1 hour. Foot-shock gets preferentially associated with something in the environment (light)