PSYCH-sensation and sleep

Theories of color vision 1 trichromatic theory three

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: have more of these • Cones are responsible for color vision Goes from retina to optic nevere Optic Nerve: contains axons of ganglion cells Information of the light is sent through the optic nerve to the brain. Then the brain takes over and perceives the light information. THEORIES OF COLOR VISION 1. TRICHROMATIC THEORY: Three types of cones- blue, green and red. We can sense colors based on how much activation is coming from each type of cone. Most colors are a mix of red, green and blue. PROBLEM: shouldn’t yellow be up in there? 2. OPPONENT PROCESS THEORY: Three different types of cones- receptors in visual system respond positively to one end, and negatively to another. So there’s blue- yellow cone, green- red cone, black- white cone. So you never see a bluish yellow color, or green reddish color, because as one is activated the other is negated. Researchers are still working on this...
View Full Document

This note was uploaded on 01/26/2014 for the course PSYC 1010H taught by Professor Freyberg during the Fall '13 term at Yeshiva.

Ask a homework question - tutors are online