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  • Title: Trichromatic vision in the cat.
    Author: Ringo J, Wolbarsht ML, Wagner HG, Crocker R, Amthor F.
    Journal: Science; 1977 Nov 18; 198(4318):753-5. PubMed ID: 910161.
    Abstract:
    Many cat retinal ganglion cells (types X, Y, and W) have inputs from three separate cone systems. Those with peak sensitivities at 450 and 555 nanometers have been previously shown. A gamma max cone with a peak sensitivity of 500 nanometers can be differentiated from other cones by spectral sensitivity and from rods by receptive field differences, functioning above rod saturation levels, and by cone-rod breaks in the dark-adaptation curves. The similarity of the three-cone cat retina to the extramacular retina of the rhesus monkeys suggests that the cat may have photopic trichromatic vision.
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