PSYCH 1XX3 Chapter Notes - Chapter 5: Tetrachromacy, Color Vision, Color Blindness
14 Sep 2016
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The image is being broken down into several different parts and then is later combined through high level processing. Can be used for camaflouge purposes in terms of predation. Can be used to attract potential mates (bright colours) Warn predators to stay away (colours can indicate poisonous species to predators) Humans use colour information as well: camaflouge for soldiers, sports (white golf ball in a green field, dressing style (infer mood) The electromagnetic spectrum: our eyes are evolved to only perceive the visible spectrum (roygbiv, this tends to bias our view of the world. The interaction of these cones allows us to see what we see. Cannot distinguish between these 2 colours: each cone responds maximally to certain wavelengths. Additive interaction of information drives our colour vision. Zebra finches have 4 cones types (uses uv information) Women define colours at a nuance level.
