Neurobiological hypothesis of color appearance and hue perception.
De Valois and De Valois [Vis. Res.33, 1053 (1993)] showed that to explain hue appearance, S-cone signals have to be combined with M versus L opponent signals in two different ways to produce red-green and yellow-blue axes, respectively. Recently, it has been shown that color appearance is normal for individuals with genetic mutations that block S-cone input to blue-ON ganglion cells. This is inconsistent with the De Valois hypothesis in which S-opponent konio-geniculate signals are combined with L-M signals at a third processing stage in cortex. Instead, here we show that color appearance, including individual differences never explained before, are predicted by a model in which S-cone signals are combined with L versus M signals in the outer retina.
Brian P
BP
Schmidt
Maureen
M
Neitz
Jay
J
Neitz
D003116:Color; D003118:Color Perception / Q000502:physiology*; D055253:Color Vision / Q000502:physiology; D006801:Humans; D055537:Light Signal Transduction; D008959:Models, Neurological; D009446:Neurobiology; D017949:Retinal Cone Photoreceptor Cells / Q000166:cytology; D012165:Retinal Ganglion Cells / Q000166:cytology