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Lecture 31

PSYC 2250 Lecture 31: Lecture 31

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PSYC 2250
Steven Hladkyj

oS82 Achieved in infancy Newborns perception of object is limited, but develops rapidly in the first few months after birth Allows infants to make sense of their environment Size constancy realization that an objects actual size remains the same despite changes in the size of its retinal image shape, brightness, color constancies babies will acquire these very early about 4 months Depth Perception Visual cliff experiments A glass covered platform; on one side, a pattern appears directly under the glass, but on the other, it appears deveral feet below the glass Judged by a number of cues: Kinetic cues motion Important cue is motion, elements that move together are usually part of the same object Visual expansion size of retinal image Refers to the fact that nearby objects move across our visual field faster than those at a distance Motion parallax speed of near and far object moving across visual field Refers to the fact that nearby moving objects move across our visual field faster than those at distance First weeks after born Retinal disparity eyes see different images Based on the fact that the left and right eyes often see slightly different versions of the same scene. Start to interpret this in 4 months Pictorial cues Same cues that artists use to convey depth in drawings and paintings By 7 months
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