Sensation and Perception 18 04 2012 17 04 00 How do we form meaningful perceptions from sensory information we organize it Gestalt psychologists showed that we form a whole reality that is greater than just the individual sensations the whole is more than the sum of its parts Organization of the visual field into objects figure that stand out from their surroundings ground only attuned into one at a time After distinguishing the figure from the ground our perception needs to organize the figure into a meaningful form using grouping rules proximity similarity continuity connectedness Depth Perception enables us to judge distances As soon as infants can crawl they already have depth perception Even newborn animals show depth perception How important is experience in shaping our perceptual interpretation Top Down Processing higher level mental processes help us construct our perceptions drawing on our experience and expectations o the paragraph where the first and last letters are kept in place and the middles are jumbled The Ear Outer Ear Middle Ear Inner Ear o collects and sends sounds to the eardrum o chamber between eardum and cochlea containing three tiny bones hammer anvil stirrup that concentrate the vibrations of the eardrum on the cochlea s oval window o Innermost part of the ear containing the cochlea semicircular canals and vestibular sacs cochlea is the part of the ear that starts to transduce the sound vibrations into action potentials coiled bony fluid filled tube in the inner ear that transforms sound vibrations to auditory listen to description of anatomy and phsiology the innermost chamber of the cochlea center of the tube those hair cells are tuned to pick up really low frequencies toward the outside surface of the tube pick up high frequencies vestibular system balance head orientation in space vestibular sacs semicircular canals 18 04 2012 17 04 00 18 04 2012 17 04 00
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