PSYB51H3 Chapter Notes - Chapter 1: Motor System, Psychophysics, Cranial Nerves

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10 Oct 2012
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Plato"s allegory of the cave: our senses = prisoners and the shadow. We are prisoners of our senses, yet that"s all we have to shape our sense of reality. : perception and senses are the products of evolution, it encourage survival, senses evolved to match the environment, hence we don"t need to hear like bat, bee, mice etc. You can never step into the same river twice . Perception depends on the environment and the perceiver. Steady/predictable conditions are less salient than changing ones in the environment. Democritus: sensation are atoms leaving and making contact with our sense organs. Primary senses are texture and weight, because they are direct contact. Secondary: atoms interacting from object to observer, such as sight, sound etc. Sensory transducer: any substance/structure that change energy from one form to another. It transform information from the environment to neural signal. Likely depends more on experience than sensation does.