Abstract
Three observers were shown very small (12′) chromatic stimuli varying in retinal illuminance, duration, and wavelength. The observers named the color and saturation of the stimuli. The results show that when retinal illuminance × time equalled a constant, observers’ color names remained constant; when retinal illuminance × time did not remain constant, color names did not remain constant. As total retinal illuminance was decreased, by decreasing duration, the degree of artificial tritanopia increased.
© 1968 Optical Society of America
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