Three pigments in normal and anomalous color vision
β Scribed by MacLeod, Donald I. A.; Hayhoe, Mary
- Book ID
- 115383424
- Publisher
- Optical Society of America
- Year
- 1974
- Weight
- 612 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0030-3941
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## Abstract Color vision was tested as part of a study of microβevolution in three historicallyβrelated populations in Mexico. The frequencies of color vision anomalies fall within the range observed for contemporary Latin American populations. The present findings do not support the previously pro
A classical theory held that deuteranomaly was caused by the replacement of the normal M cone pigment by an anomalous M pigment, which was spectrally red-shifted. Two assumptions associated with that theory were: (1) that there was a single, fixed L pigment, shared by deuteranomals and normals; (2)