lec7 - The visual and oculomotor systems Peter H. Schiller,...

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The visual and oculomotor systems Peter H. Schiller, year 2006 Form perception
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Gestalt ideas of form perception
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Objects close together tend to unite perceptually into groups Figure by MIT OCW. B C A
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Objects similar in shape and size tend to group together Figure by MIT OCW.
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Objects that move together in the same direction and same velocity are grouped together
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Three general theories of form perception: 1. Form perception is accomplished by neurons that respond selectively to line segmens of different orientation. 2. Form perception is accomplished by spatial mapping of the visual scene onto visual cortex. 3. Form perception is accomplished by virtue of Fourier analysis.
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Orientation of line segments and spatial frequency
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Topographic mapping
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Cajal's scheme for retinal connections (1) (2) Figure by MIT OCW.
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Cortical layout of neurons activated by arrows all co he arrows in ntralateral monkey mifiel 1 2 3 4 5 6 90 7 0 -45 -90 -45 0 45 0.25 0.5 1 2 4 7 90 45 0 -45 -90 7 4 2 1 0.5 0.25 Figure by MIT OCW.
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Cortical layout of neurons activated by arrows arrows midline across Figure by MIT OCW. 1 2 3 4 5 6 90 7 0 -45 -90 -45 0 45 45 0.25 0.5 1 2 4 7 90 45 0 -45 -90 7 4 2 1 0.5 0.25
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Cortical layout of neurons activated by disks disk hem s in one ifield 1 2 3 4 5 6 90 7 0 -45 -90 -45 0 45 0.25 0.5 1 2 4 7 90 45 0 -45 -90 7 4 2 1 0.5 0.25 45 Figure by MIT OCW.
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Cortical layout of neurons activated by disks disks a midline cross 1 2 3 4 5 6 90 7 0 -45 -90 -45 0 45 0.25 0.5 1 2 4 7 90 45 0 -45 -90 7 4 2 1 0.5 0.25 45 Figure by MIT OCW.
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The Giotto Story: When Pope Benedict, the 12th, in 13th Century set out to have the walls of
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This note was uploaded on 11/11/2011 for the course BIO 9.07 taught by Professor Ruthrosenholtz during the Spring '04 term at MIT.

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lec7 - The visual and oculomotor systems Peter H. Schiller,...

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