Relating color discrimination to photopigment genes in deutan observers.
Deutan observers are a heterogeneous group, varying nearly continuously from deuteranomalous trichromats with fine chromatic discrimination in the red/green range to deuteranopes who have none. We sought to relate chromatic discriminative ability among deutans measured psychophysically (phenotypes) to observers' separation between long-wave visual pigments inferred from visual pigment genes (genotypes). If middle-wave pigment genes are assumed not to be expressed in these deutan observers there is a clear relation between phenotype and genotype.
Shevell
S K
SK
Visual Sciences Center, University of Chicago, IL 60637, USA. shevell@uchicago.edu
He
J C
JC
Kainz
P
P
Neitz
J
J
Neitz
M
M
D003118:Color Perception / Q000502:physiology*; D003117:Color Vision Defects / Q000235:genetics*; D004192:Discrimination, Psychological / Q000502:physiology; D005838:Genotype; D006801:Humans; D008027:Light; D010641:Phenotype; D011601:Psychophysics; D012168:Retinal Pigments / Q000235:genetics*
D012168:Retinal Pigments