Unique hues in heterozygotes for protan and deutan deficiencies

We measured the wavelengths of unique blue, green, and yellow in a population of normal women and carriers of different forms of red-green deficiencies. In the case of unique blue and green none of the groups of heterozygotes differed significantly from normals. In the case of unique yellow, at a retinal illuminance of 800 td, carriers of protanomaly made settings at significantly shorter wavelengths than any other group. Carriers of deuteranomaly, deuteranopia and protanopia did not differ from normal individuals. At 20 td none of the groups of heterozygotes differed from normal. Our results offer no support for the hypothesis of Cicerone (1987) that the wavelength seen as unique yellow is determined primarily by the relative numbers of L to M cones. Nor do we have any evidence for the report of Donders (1884) that the settings of unique yellow vary with Rayleigh matches

[1]  J. Winderickx,et al.  Polymorphism in red photopigment underlies variation in colour matching , 1992, Nature.

[2]  Forrest L. Dimmick,et al.  The Spectral Components of Psychologically Unique Red , 1939 .

[3]  M. Lyon.  X‐CHROMOSOME INACTIVATION AND DEVELOPMENTAL PATTERNS IN MAMMALS , 1972, Biological reviews of the Cambridge Philosophical Society.

[4]  I. MacDonald,et al.  Molecular genetics of inherited eye disorders. , 1994, Clinical and investigative medicine. Medecine clinique et experimentale.

[5]  Y. Ejima,et al.  Differences of unique‐ yellow loci between individuals , 1982 .

[6]  M Alpern,et al.  The red and green cone visual pigments of deuternomalous trichromacy. , 1977, The Journal of physiology.

[7]  Carol M. Cicerone.  Constraints placed on color vision models by the relative numbers of different cone classes in human fovea centralis , 1987 .

[8]  V C Smith,et al.  Evaluation of single-pigment shift model of anomalous trichromacy. , 1977, Journal of the Optical Society of America.

[9]  P Grützner,et al.  [Evidence for reduced colour vision in carriers of congenital colour vision deficiencies (author's transl)]. , 1976, Human genetics.

[10]  D. Jameson,et al.  Does anomalous color vision imply color weakness? , 1964 .

[11]  H. E. Roaf,et al.  The sensation of yellow and anomalous trichromatism , 1937, The Journal of physiology.

[12]  D. Jameson,et al.  An opponent-process theory of color vision. , 1957, Psychological review.

[13]  Leo Maurice Hurvich,et al.  Color vision , 1981 .