Relating color discrimination to photopigment genes in deutan observers

  • Shevell S
  • He J
  • Kainz P
 et al. 
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Abstract

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.

Author-supplied keywords

  • Anomalous trichromacy
  • Color matching
  • Cone photopigments
  • Photopigment variation
  • Rayleigh matching

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Authors

  • S. K. Shevell

  • J. C. He

  • P. Kainz

  • J. Neitz

  • M. Neitz

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