PSYC 2230 Chapter Notes - Chapter 7: Analgesic, Smoking Cessation, Convulsion

• School: York University
• Department: Psychology
• Course: PSYC 2230
• Professor: Frank Marchese

Document Summary

Beneception occurs when pleasant feelings arise by stimuli: 2. Nociception occurs when unpleasant feelings arise: 3. Neutroception occurs when feelings are neutral: beebe-center said instructions change the perceived pleasantness or unpleasantness of stimuli. Instructional set alters actions of sense organs rather than altering perception. Young maintains that the nervous system is constructed to maximize affect. Motivational influences of sensations: sensory stimulation is motivation and leads to approach or withdrawal. Research showed that hedonic intensity and sensory intensity are not equivalent. Recording of the chorda tympani a cranial nerve sending taste information to the brain showed that as salt concentration increased so does electrical activity of the nerve. However hedonic value at first increases and then decreases as salt concentration becomes greater. Perception of pain is much more variable and modifiable than people thought. For example, 65% of men wounded in battle brought to a field hospital report no paint, yet 80% of civilians with similar injuries report severe pain.