The Bezold-Brücke phenomena at the two ends of the spectrum.
Purdy's study did not cover the two ends of the spectrum. He stopped at 460 and 650 nm. This study extends the data down to 400 nm at the blue end and up to 680 nm at the red end. The data obtained tie in with a previous study of the purple colors involving mixtures of 460 and 667 nm. We now have a clear picture of what occurs at all parts of the color circle.
D000328:Adult; D000368:Aged; D003116:Color / Q000592:standards*; D003118:Color Perception / Q000502:physiology*; D006801:Humans; D008029:Lighting; D008297:Male