PSYC 101 Lecture Notes - Lecture 30: Color Vision, Trichromacy, Subtractive Color
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PSYC 101 Full Course Notes
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Explain trichromatic theory and opponent process theory, including their strengths and weaknesses. Describe how trichromatic theory and opponent process theory have been combined to better account for colour vision. As you mix things that are different colours together,some wavelengths of light are. Wavelengths of light are added as you combine colours. If you add these colours together in different proportions, can get any colour you want. Most evidence about colour blindness fits well. Colour blind are deficient in 1 or 2 of the cones (mostly red or green) Why traffic lights are always in same order. If you see any colour, you"re seeing a combination of these cones. Problems w/ trichromatic theory: afterimages appear in complementary colours, we need more than 3 colours to describe the world. Receptors make antagonistic responses to 3 pairs of colours. Cones pick up a range of wavelengths not one distinct colour it"s picking up. Low or no ability to perceive one (or more) colours.
