PHYSICISTS, PSYCHOLOGISTS, PHYSIOLOGISTS and artists—not to mention paint manufacturers—have all played substantial roles in the study of color and color vision. Many disparate points of view have resulted in great cross fertilization but, not surprisingly, some confusion as well. One confusion is the dichotomy of physical stimulus and sensation, that is, color perception. Several different theories have attempted to explain the relation between the two, the two major ones being those called “trichromatic” and “opponent‐process.” Meanwhile observable facts have been determined by many types of measurement: color mixing, wavelength discrimination, spectral sensitivity and studies of color blindness. We do not know all the answers yet, but apparently all the major theories have their own validities at different levels of perception.
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March 1966
March 01 1966
Color vision
Correspondence between physical stimulus (frequency, intensity, complexity) and sensation (hue, brightness, saturation) is neither obvious nor simple. Many theories offer explanations, but none has been entirely satisfactory. Now it appears that all of them have relevance, and color phenomena are being understood.
Physics Today 19 (3), 34–41 (1966);