PSYB51H3 Lecture Notes - Cranial Nerves, Headache, Power Law

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What can be learned from early philosophy about perception. Pyschophysics: major important things in psych, a lot is derived from here, comes from philosophy. Plato: wrote allegory of the cave, pictures us as how we perceive the world. He claims we are like prisoners born in a cave facing the back wall of the cave. We don"t know anything that is outside the cave because we are chained to the wall, we are a prisoner of our perception. Our conception of reality is a product of what is gathered through the senses. Sense came into existence to serve purposes ex: survival ex: venus fly trap, primitive motor system, plant needs sensation to survive, the vibration by the fly the plant senses it, color is however irrelevant. Bees see ultraviolet, snakes have heat senses, dogs have hearing abilities and birds have certain types acute vision and motion detection. Plato: our reality is restricted to things that we perceive.

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