PSY 205 Lecture Notes - Lecture 4: Optic Chiasm, Occipital Lobe, Retina

• School: Syracuse University
• Department: Psychology
• Course: PSY 205
• Professor: S.Houck

Document Summary

Psychophysics study of how physical stimuli are translated into psychological experience: sensation the stimulation of sense organs. Tongue with taste, ear with sound, eye with light (as stimulus: perception the selection, organization, and interpretation of sensory input (how we integrate that information and come away with our interpretation of it) Much of our sensation and subsequent perception starts with visual cues: retina neural lining in back of eye that sends visual information to the brain. Why do we not see the world upside down: retina (eyes) see everything upside down, brain flips everything right side up. Right hemisphere controls left side of our body, left hemisphere controls right side of our body. Optic chiasm crossover point of ^ Order: light stimulus for vision, light hits eye, first enters cornea, passes through pupil (surrounded by iris, refracted in lense. Inside of retina optic disk (why we experience blind spots: goes along optic nerves eventually to brain, crosses over at optic chiasm.