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The Demands of Geometry on Color Vision

Neuroscience and Behavioral Disorders Program, Duke-NUS Graduate Medical School Singapore, 8 College Road, Singapore 169857, Singapore
Department of Neurobiology, Duke University Medical Center, Durham, NC 27708, USA
Duke Institute for Brain Sciences, Duke University, Durham, NC 27708, USA
Author to whom correspondence should be addressed.
Academic Editor: Andrew Parker
Received: 22 August 2016 / Revised: 30 December 2016 / Accepted: 6 January 2017 / Published: 12 January 2017
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While studies of human color vision have made enormous strides, an overarching rationale for the circular sense of color relationships generated by two classes of color opponent neurons and three cone types is still lacking. Here we suggest that color circularity, color opponency and trichromacy may have arisen, at least in part, because of the geometrical requirements needed to unambiguously distinguish all possible spectrally different regions on a plane. View Full-Text
Keywords: perception; color circularity; opponency; trichromacy; spectral images; unique hues; four-color map problem perception; color circularity; opponency; trichromacy; spectral images; unique hues; four-color map problem

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Purves, D.; Yegappan, C. The Demands of Geometry on Color Vision. Vision 2017, 1, 9.

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