Neural Mechanisms of Color Vision

- Double-Opponent Cells in the Visual Cortex

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Neural Mechanisms of Color Vision
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Format:
Bog, hardback
Udgivelsesdato:
31-07-2002
Sprog:
Engelsk
Udgave:
2002 ed..
  • Beskrivelse
  • Yderligere info
  • Anmeldelser

Dr. Conway mapped the spatial and temporal structure of the cone inputs to single neurons in the primary visual cortex of the alert macaque. Color cells had receptive fields that were often Double-Opponent, an organization of spatial and chromatic opponency sufficient to form the basis for color constancy and spatial color contrast. Almost all color cells gave a bigger response to color when preceded by an opposite color, suggesting that these cells also encode temporal color contrast. In sum, color perception is likely subserved by a subset of specialized neurons in the primary visual cortex. These cells are distinct from those that likely underlie form and motion perception. Color cells establish three color axes sufficient to describe all colors; moreover these cells are capable of computing spatial and temporal color contrast - and probably contribute to color constancy computations - because the receptive fields of these cells show spatial and temporal chromatic opponency.

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Bog, paperback

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Udgivelsesdato:
31-07-2002
ISBN13:
9781402070921
Vægt:
879 g
Dybde:
15 mm
Bredde:
155 mm
Højde:
235 mm
Format:
Hardback
Forfattere
Bibliotekernes beskrivelse Color cells had receptive fields that were often Double-Opponent, an organization of spatial and chromatic opponency sufficient to form the basis for color constancy and spatial color contrast. Almost all color cells gave a bigger response to color when preceded by an opposite color, suggesting that these cells also encode temporal color contrast. 1 Hardback 2 Illustrations, color; 30 Illustrations, black and white; XVI, 143 p. 32 illus., 2 illus. in color.

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