PSYCH 1XX3 Lecture Notes - Lecture 5: Lateral Geniculate Nucleus, Occipital Lobe, Cytochrome C Oxidase
29 Mar 2017
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Many birds, fish, reptiles & insects have excellent colour vision. Among mammals, however, colour vision is limited to primates, including humans. Ex: some flowers have adapted patterns on the petals that are invisible to humans, but serve as nectar maps to the bee. We don"t need to have millions of colour receptors to deal w/ every conceivable color in the world. Instead, we just need a few receptor types whose activity can be combine in various proportions to make every conceivable color. In short: we process colour stimuli similar to how artists mix colour pigments. Primary colours: the three colours that can be combined in various proportions to make every color in the spectrum, base colors: they can"t be reduced into other colours. With subtractive colour mixing, the primary colours are: cyan, magenta, and yellow. Subtractive colour mixing results from light that is reflected off a surface.
