PSYCO104 Lecture Notes - Lecture 9: Color Vision, Dichromacy, Synesthesia
42
PSYCO104 Full Course Notes
Verified Note
42 documents
Document Summary
Holds that the human eye has three types of receptors with differing sensitivities to different light wavelengths. Eye has specialized receptors sensitive to the specific wavelengths of red, green, and blue. All colors are created by an additive mixing process. Most people who are color blind are dichromats. Three types: red, green, or blue insensitive dichromatism. Complementary colors: pairs of colors that produce grey tones when mixed together. Afterimage: a visual image that persists after a stimulus is removed. Op theory holds that color perception depends on receptors that make antagonistic responses to three pairs of colors (so only one can be expressed at a time) Also can explain some difficulties of colorblind individuals. It takes both theories to explain color vision. The eye actually has three types of cones, with each type being most sensitive to a different brand of wavelengths.
