Uniqueness of perceived hues investigated with a continuous judgmental technique.

Abstract

The hue-wavelength relation was investigated using a color-naming technique which enabled Ss to assign numerical weights to component hues associated with the long wavelength part of the spectrum. Ss were found capable of given more information than when using more quantal methods, with a high degree of reliability. Red, orange, yellow, and green were evaluated on the basis of criteria established for the uniqueness of perceived hue. Evidence was presented which indicated that the hue associated with the color name orange is not unique in all aspects. It was concluded that the hues associated with the long wavelength part of the spectrum could be adequately described without the orange response category.