Any light stimulus that produces the equal activity across all three cones will be perceived as grey

Any light stimulus that produces the equal activity across all three cones will be perceived as grey

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Any light stimulus that produces the equal activity across all three cones will be perceived as grey to ppl missing l or m cones What trichromacy can explain o Color matching o Color mixing o Color vision deficits What trichromacy cant explain o Three cones but 4 primary colors o Further evidence from visualization – imagine a reddish yellow or reddish blue but hard to imagine a reddish green ( not all colors can be combined) also from colorblindness: ppl who cant see red cant see green, ppl who cant see yellow cant see blue o Opponent process theory – 4 primary colors are organized into to opponent paris Red and green and yellow and blue Three different channels- cant perceive combo of red and green because it cant increase and decrease at the same time Putting it all together o Both theories are true trichromatic and opponent processing Why do we need multiple receptors? Test 3
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This note was uploaded on 11/27/2011 for the course PSYC 225 taught by Professor Staff during the Fall '10 term at UNC.

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