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The striate
cortex (V1) uses unoriented, monocular input
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from the lateral
geniculate to assemble cells selective for
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orientation,motion,
and retinal disparity.
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Striate cortex
is organized in columns with similar orientation
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and ocular
dominance.
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Two visual
streams emanate from V1: a dorsal stream
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concerned with
analyzing the visual world for location and
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action, and a
ventral stream concerned with analyzing the
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nature of objects
in the visual world. Different
areas
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subsume different
spatial and object attribute functions.
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Clinical deficits
include specific deficits for color, faces,
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motion, visual
targeting of motion, and spatial localization.
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