PSY 3108 Lecture Notes - Lecture 11: Recessed Light, Cambrian Explosion, Color Vision
23 Oct 2018
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Chapter 11 : vision iv colour vision. Functions of colour vision: aids in segmenting the scene into objects, break the world in objects, but colour helps you be better at it, this (cid:373)akes it easier to fi(cid:374)d food/pre(cid:455) a(cid:374)d a(cid:448)oid predators (cid:448)ia (cid:862)(cid:272)a(cid:373)ouflage (cid:271)reaki(cid:374)g(cid:863) Of segmentation: a bunch of overlapped objects, with non colour vision its hard to segment than with coour. Frugivrous monkeys use colour vision to pick out ripe fruit form green foliage: fruit eating moneys. Folivorous monkeys use colour vision to pick out new red leaves from old green ones: leaf eating monkeys, colour is important in mate selection, especially amongst birds and fish, wehre it is an indicator of male health. Evolution of colour vision: due to different evolutionary pressures, different species have radically different colour vision capacities, and radically different sensory capacities in general, different creatures have different colour vision capacity.
