Colour vision across the life span: effect of age, ambient illumination and individual differences

[摘要] Colour vision starts in the retina where light is absorbed in three different cone classes, sensitive to long-, medium-, and short-wavelength light. The cone signals then feed into three different post-receptoral channels, a luminance channel and two cone-opponent chromatic -channels (Derrington, Krauskopf & Lennie, 1984). These two cone-opponent chromatic channels do not correspond to perceptually salient colour mechanisms (unipolar red, green, yellow, blue), suggesting that the two sub-cortical chromatic channels are recombined in visual cortex into orderly hue maps consistent with our fMRI experiments.

[学科分类] 眼科学