Chapter6Transparencies - CHAPTER 6 – PERCEPTION I –...

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I – SELECTIVE ATTENTION: Focusing conscious awareness on a specific stimulus Perception : Select, organize, and interpret sensations. Cocktail party effect : Ability to attend to only one voice among many. Necker cube: See circles or cube, but not both. Change blindness: Don’t notice changes in the visual field. Affects of unattended stimuli : May still register at the nonconscious level (prefer tunes “not heard” in unattended ear). II – PERCEPTUAL ILLUSIONS Visual capture : The tendency for vision to dominate the other senses. Puzzles : Muller-Lyer, 2-girls in a room, St Louis Arch, spot distances, glow worm, ripple illusion, click-click rhythm III – PERCEPTUAL ORGANIZATION Gestalt: An organized whole; gestalt psychologists emphasize our tendency to integrate pieces of information into meaningful wholes. Process : Distinction between sensation and perception is fuzzy; sensation is not just bottom-up processing, and perception is not just top-down processing. Sensation and perception blend into one continuous process, progressing upward from specialized detector cells and downward from our assumptions. We constantly filter sensory information and infer perceptions in ways that make sense to us. Mind matters . Figure and Ground : Perceiving an object (figure) as distinct from its background (ground); Reversible figures (object become ground, and ground becomes object). Grouping : Brain uses rules to organize sensory information into wholes. Proximity : Group nearby figures together and perceive them as one. Similarity : Group similar figures together and perceive them as one. Continuity : Perceive smooth continuous patterns rather than discontinuous one Connectedness : When they are uniform and linked, perceive spots, lines or areas as a single unit. Closure : Fill in gaps to create complete, whole objects. IV – DEPTH PERCEPTION : Seeing object in 3 dimensions despite 2-D image on retina. Visual cliff : a laboratory device for testing depth perception in infants and young animals; by 6 months infants will not cross – perceive depth; inborn. 1
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This note was uploaded on 03/27/2008 for the course PSY 101 taught by Professor Jackson during the Spring '08 term at Michigan State University.

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Chapter6Transparencies - CHAPTER 6 – PERCEPTION I –...

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