Colour vision, a discussion of the leading phenomena and their physical laws (1922)
Peddie, William · London, Arnold · leaf 196
and y are stillpositive, the relative magnitudes of x and y are reversed. Thebrighter image becomes the weaker, and conversely ; and ifcolour be present, the x type is replaced by the y type, or con-versely. Whether or not the retinal or cerebral conditions aresuch as to render the effect possible… … 0 5 JO 15 20 25 Fig. 27.—Curves of Fatigued and Inhibited Sensation. 105. The Origin of Colour Blindness.—If, for the sake ofsimplicity of treatment, we take instead of the three generalexpressions for the rates of variation of x, y, and z, the case inwhich x=—QiX+m{y+z),y=-Q.,y-^m{z-^x).i=—…
Color
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