Middle Wavelength Sensitive Photopigment Gene Expression is Absent in Deuteranomalous Colour Vision

Maureen Neitz, Kathryn Elizabeth Bollinger, Jay Neitz

Research output: Chapter in Book/Report/Conference proceedingChapter


The deutan-type colour vision deficiencies, deuteranopia, and deuteranomaly are the most common types of colour blindness. A known cause of deutan colour vision defects is the loss of genes encoding the middle wavelength sensitive (M) photopigments. Deutan defects have also been found to be associated with a deleterious point mutation in the M photopigment genes. This chapter tests the hypothesis that M gene expression is absent in all commonly occurring deutan defects. It shows that the commonly occurring deutan defects in which individuals have normal appearing M genes, are caused by a failure to express M pigment. Moreover, it appears that the failure is likely to be complete.

Original languageEnglish (US)
Title of host publicationNormal and Defective Colour Vision
PublisherOxford University Press
ISBN (Electronic)9780191584947
ISBN (Print)9780198525301
Publication statusPublished - Apr 1 2010
Externally publishedYes



  • Colour blindness
  • Deutan defects
  • Deuteranomalous colour vision
  • Gene expression
  • Middle wavelength sensitive photopigments

ASJC Scopus subject areas

  • Psychology(all)

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