PSYCH 1XX3 Lecture Notes - Lecture 2: Achromatopsia, Complementary Colors, Real Image
Document Summary
Colour exists as our way of interpreting light waves. Objects we look at reflect certain wavelengths of the visible spectrum. These reflected wavelengths trigger specific patterns of response in our brains that give rise to our subjective colour experience. Colour adds richness to our visual experience, it also does a lot more. Manu birds, fish, reptiles and insects have colour vision. Among mammals, colour vision is limited to primates. The functions of colour vision in different species. Primates have 3 types of cone sin the eye that are used for colour vision. They are suited to distinguish yellow and red against a greed background. This helps with: foraging for fruit in bushes and trees. Many non mammalian species are able to see colour at the uv end of the spectrum. Colour may also be used for foraging. Bees see ultraviolet hues on flowers that act as nectar maps.
