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Definition
It is the molecular structure of the genes that encode the human cone photopigments and their expression in photoreceptor cells. Alterations in these genes have consequences on the spectral sensitivity of the cone photopigments which in turn affect how the color-normal and color-deficient individual see the world.
Overview
Normal trichromats can match any color by combining three suitably chosen primaries in appropriate proportions. Those that differ from normal trichromats with respect to the proportions of the primaries may either require that the three primaries be present in unusual quantities or may only need two primaries. The first type of variation is known as anomalous trichromatism, and it is assumed that it arises when three classes of cones are present, one of which contains a photopigment with an anomalous absorption spectrum. The second type of variation is known as dichromatism and...
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References
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Rodriguez-Carmona, M. (2016). Photoreceptors, color vision. In: Luo, R. (eds) Encyclopedia of Color Science and Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27851-8_277-2
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DOI: https://doi.org/10.1007/978-3-642-27851-8_277-2
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Online ISBN: 978-3-642-27851-8
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Latest
Photoreceptors, Color Vision- Published:
- 27 November 2019
DOI: https://doi.org/10.1007/978-3-642-27851-8_277-3
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Photoreceptors, color vision
- Published:
- 15 March 2016
DOI: https://doi.org/10.1007/978-3-642-27851-8_277-2
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Original
Genetics of Photoreceptors, Genetics and Color Vision Deficiencies, Genes of Cone Photopigments, Genes and Cones- Published:
- 29 September 2015
DOI: https://doi.org/10.1007/978-3-642-27851-8_277-1