title: The colour-matching functions and visual research.
abstract: The following points are examined: the problem of how to define the colour of a stimulus used in visual research; the limited relation of the colour-matching functions to the spectral sensitivity curves of the individual colour receptors in the retina; and the case for abandoning luminance as a colorimetric variable and lightness as a colour appearance variable.
authors: W D
authors: WD
authors: Wright
mesh_terms: D003116:Color; D003118:Color Perception / Q000502:physiology*; D006801:Humans; D008029:Lighting; D010786:Photoreceptor Cells / Q000502:physiology; D012107:Research Design / Q000592:standards; D012160:Retina / Q000502:physiology*