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Canada (161,661)
Psychology (9,695)
PSYB51H3 (306)
Chapter 6

chapter 6

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Matthias Niemeier

PSYB51CHAPTER 6 Space Perception and Binocular Vision 1Realism Euclidean A philosophical position arguing that there is a real world to sense Referring to the geometry of the world so named in honor of Euclid the ancient Greek geometer of the third century BCE In Euclidean geometry Positivism parallel lines remain parallel as they are extended in space objects maintain A philosophical position arguing that all we really have to go on is the the same size and shape as they move around in space the internal angles of a evidence of the senses so the world might be nothing more than a elaborate triangle always add to 180 degrees and so forth hallucinationThe two retinal images always differ because the retinas are in slightly different places Binocular summation Monocular Monocular depth cue The combination or summation of signals With one eye A depth cue that is available even when the from each eye in ways that make performance world is viewed with one eye alone Stereopsis on many tasts better with both eyes than with The ability to use binocular disparity as a cue of Binocular depth cue either eye alone depth A depth cue that relies on information from both eyes Stereopsis is the primary example in Binocular disparity Depth cue The differences between the two retinal images humans but convergence and the ability of two Information about the third dimension depth of of the same scene Disparity is the basis for eyes to see more of an object than one eye sees visual space Depth cues may be monocular or stereopsis a vivid perception of the threeare also binocular depth cues binocular dimensionality of the world that is not available with monocular vision Monocular Cues to ThreeDimensional Space Occlusion Occlusion Nonmentrical depth cue Metrical depth cue A cue to relative depth order in which for A depth cue that provides information about the A depth cue that provides quantitative example one object obstructs the view of part of depth order relative depth but not depth information about distance in the third another object magnitude eg his nose is in front of his face dimensionis a nonmetrical depth cueSize and Position Cues that change in size across the image will appear objection A was twice as far away as object B Projective geometry For purposes of studying perception of the to form a surface in depth without providing information about
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