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Chapter 6

PSYB51 Chapter 6_chapter notes

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Matthias Niemeier

Chapter 6: Space Perception and Binocular Vision Realism - A philosophical position arguing that there is a real world to sense Positivism - A philosophical position arguing that all we really have to go on is the evidence of the senses, the world may be nothing more than an elaborate hallucination Euclidean The geology of the world, so named in honor of Euclid, the ancient Greek geometer of the third century BC E. in Euclidean geometry, parallel lines remain parallel as they are extended into space, objects contain the same shape as they move around in space, the internal angles of trying to always add to the 180 and so forth - Do geometry of retinal images of the world is decidedly non-Euclidean We construct the world from two non-Euclidean inputs: the two distinct retinal images - Advantages to having two eyeballs: you can lose one night and still be able to see, they enable you to see more of the world Our visual field is limited to about 190 from left to right, 110 of which is covered by both eyes; 60 up in the center of the gays and 80 down Binocular visual fields just a better chance to spot small, fast-moving objects Binocular summation - Combination of signals from each eye in ways that make performance on many tasks better with both sides with either I alone They have provided evolutionary pressure that first moved eyes to the front of some birds and mammals face Binocular disparity - The difference between the two but no images of the same word. Disparity is a basis for vivid perception of the three dimensionality of the world that is not available with purely monocular vision - Stereopsis the ability to use binocular disparity execute steps Not a necessary condition for depth perception or space perception Monocular depth cue - The depth cue that is available even world is viewed with one eye alone Binocular depth cue - Adept queue that relies on information from both eyes. When Ocular Cues to Three-Dimensional Space Occlusion - Occlusion gives information about the relative positions of objects Present in almost every visual scene Most reliable of all depth cues 1 www.notesolution.com
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