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      Cone Mechanisms and Their Colour-Opponent Interaction in Monkey and Cat

      ,

      Ophthalmic Research

      S. Karger AG

      Rhesus monkey, Cat, Colour vision, Retinal ganglion cells, Colour opponency, Action spectra

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          Abstract

          Cone mechanisms and colour opponency were investigated in 108 recordings from tonic ganglion cells of the rhesus monkey retina and 265 recordings from ganglion cells of the cat retina. Colour-opponent cells with input from short and longer wavelength sensitive cones can be found in both species in about equal proportions (6–8%). Although cells with opponency between middle and long-wavelength sensitive cones are very common in monkey (49%), they are rare in the cat (4%); usually the opponency of the latter can only be detected with strong chromatic adapting lights suppressing the dominant mechanism, while in monkey colour opponency is usually revealed under neutral adapting conditions. These differences between both species in processing chromatic stimuli can help to explain certain types of colour vision deficiencies in man.

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          Author and article information

          Journal
          ORE
          Ophthalmic Res
          10.1159/issn.0030-3747
          Ophthalmic Research
          S. Karger AG
          978-3-8055-3869-5
          978-3-318-00276-8
          0030-3747
          1423-0259
          1984
          1984
          04 December 2009
          : 16
          : 1-2
          : 40-47
          Affiliations
          Max-Planck-Institute for Physiological and Clinical Research, Bad Nauheim, FRG
          Article
          265292 Ophthalmic Res 1984;16:40–47
          10.1159/000265292
          6610151
          © 1984 S. Karger AG, Basel

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          Page count
          Pages: 8
          Categories
          Colour Vision: From Single Cells to Perception

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