Eight deuteranopes matched a mixture of a monochromatic light on the long wave side of the neutral point and a violet (450 nm) primary to a fixed white as well as a monochromatic light on the short wave side of the neutral point mixed with a red (650 nm) primary, to the same white. For λ > 530 nm, the former set of matches defined the action spectrum of the long wave sensitive foveal cones, and for λ < 480 nm, the latter that of the short wave sensitive cones. It is suggested that the visual pigment in the foveal long wave sensitive cones of different deuteranopes (and of different normals) may have different extinction spectra. The idea is consistent with microspectrophotometric measurements of rhodopsin in individual rods from different frogs (Bowmaker, Loew and Liebman, 1975).
|Original language||English (US)|
|Number of pages||34|
|Journal||Journal of Physiology|
|State||Published - 1977|
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