PSY 201 Lecture Notes - Lecture 6: Retina, Afterimage, Retinal Ganglion Cell

• School: University of Oregon
• Department: Psychology
• Course: PSY 201
• Professor: Magaret Sereno

Document Summary

Psychic blindness : damage to inferior temporal cortex, unilateral neglect: perceive world but ignore or fail to attend parts of world, damage to. Purpose of color vision: perceptual segregation: to separate objects from each other or from a background. Color vision defined: color vision: the ability to discriminate between different wavelengths of light when no brightness cues are present. Color is a psychological construct: physical stimuli may differ in wavelengths they reflect, but those wavelengths have no intrinsic hue. Color mixing: subtractive color mixing: mixing of pigments, when mix 2 pigments, only these wavelengths absorbed by neither pigment (ie. reflected by both) will be seen, additive color mixing: occurs when colored lights vs. pigments are mixed. Is additive because all wavelengths are added to each other (eg. lights projected onto a projection screen. Two theories of color vision: psychophysical results were used to propose 2 different (competing) physic.