Abstract

A large number of spectral sensitivity curves has been obtained for three observers: a normal, a deuteranope, and a protanope, by means of a rapid chromatic adaptation technique. Sensitivity curves for several adapting luminances and colors have been obtained. It has proved possible to fit these data by summing three hypothetical underlying sensitivity functions which are applicable to all three observers. The analysis of the theoretical fits appears to be in support of the concept of protanopia as a lack of “red cones” and of deuteranopia as a fusion of the inputs from “red” and “green cones.” There is evidence that chromatic adaptation is not, however, as selective as the hypothetical underlying sensitivity functions require.

© 1959 Optical Society of America

Effects of Chromatic Adaptation on Normal and Dichromatic Red–Green Brightness Matches*

Roseanne G. Speelman and John Krauskopf
J. Opt. Soc. Am. 53(9) 1103-1107 (1963)

Rapid Chromatic Adaptation and the Sensitivity Functions of Human Color Vision*

Robert M. Boynton
J. Opt. Soc. Am. 46(3) 172-179 (1956)

Chromatic and Short Term Dark Adaptation of the Human Electroretinogram

John C. Armington
J. Opt. Soc. Am. 49(12) 1169-1175 (1959)

Residual Red-Green Discrimination in Dichromats*

Horst M. O. Scheibner and Robert M. Boynton
J. Opt. Soc. Am. 58(8) 1151-1158 (1968)

Photoreceptor-specific light adaptation of critical flicker frequency in trichromat and dichromat observers

Cord Huchzermeyer, Cristiane M. G. Martins, Balázs Nagy, Mirella T. S. Barboni, Dora F. Ventura, Marcelo F. Costa, and Jan Kremers
J. Opt. Soc. Am. A 35(4) B106-B113 (2018)