PYB204 Lecture Notes - Lecture 4: Ciliary Muscle, Retina, Receptive Field
29 Sep 2018
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Document Summary
Information can be hard to get out of the environment, it can be critical for our survival that we get this information, and that we get it very fast: perception is dynamic. We perceive change when things are very regular we don"t need to perceive them at all cause we already know that they"re there. It also means that we"re going to be very fast to react to things when they actually do change in the environment: we perceive constancies in a changing environment. We perceive things as relatively unchanging when the environment around them changes. e. g. when holding a red apple, going to know it"s a red apple even when you walk into a room where the predominant light is green. Its not actually emitting a red light, but it would still appear as red to you. Even if you walk inside or outside, its not as if the apple changes colour.
