PSY BEH 101D Lecture Notes - Lecture 39: Retina, Cochlea, Psy
17 Dec 2019
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What are sensation and perception: sensation: occurs when information interacts with sensory receptors the eyes, ears, tongue, nostrils, and skin. Sensation of hearing occurs when waves of pulsating air are collected by the outer ear and conducted through the bones of the inner ear and the cochlea, where mechanical vibrations are converted into electrical impulses. Then the impulses move to the auditory nerve, which transmits them to the brain. Sensation of vision occurs as rays of light contact the eyes and become focused on the retina, where light is converted into electrical impulses. Then the electrical impulses are transmitted by the optic nerve to the visual centers of the brain: perception: is the interpretation of what is sensed. The air waves that contact the ears might be interpreted as noise or as musical sounds,. The physical energy transmitted to the retina of the eye might be interpreted as a particular color, pattern, or shape, depending on how it is perceived.
