PSYCH 1XX3 Chapter Notes - Chapter 4: Color Constancy, Dichromacy, Color Vision
8 Apr 2018
School
Department
Course
Professor
Document Summary
Colour = important for detecting patterns and objects amongst a background. The perception of color helps us distinguish feature of objects. Dichromats (only having two cone types) include rabbits, cats and squirrels. Monochromats: creatures that lack chromatic vision entirely: can only resolve objects by differences in brightness / contrast colour mixing: With normal colour vision, can make any colour we see by combining the three primary colors: green, red, blue two ways of mixing colors: (1) additive, mixing lights and, (2) subtractive, pigments. Additive: overlaps red, green and blue light together, different combo"s will produce new colors, if combined all together, produce white light. Subtractive: combining pigments of colours together, pigments reflect some wavelengths but absorb all others, if all mixed together, each gets absorbed and produces black. Thomas young: proposed that perception of color depends upon the existence of our 3 color receptors, each of which is sensitive to a different wavelength.
