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- Title
The machinery of colour vision.
- Authors
Solomon, Samuel G; Lennie, Peter
- Abstract
Some fundamental principles of colour vision, deduced from perceptual studies, have been understood for a long time. Physiological studies have confirmed the existence of three classes of cone photoreceptors, and of colour-opponent neurons that compare the signals from cones, but modern work has drawn attention to unexpected complexities of early organization: the proportions of cones of different types vary widely among individuals, without great effect on colour vision; the arrangement of different types of cones in the mosaic seems to be random, making it hard to optimize the connections to colour-opponent mechanisms; and new forms of colour-opponent mechanisms have recently been discovered. At a higher level, in the primary visual cortex, recent studies have revealed a simpler organization than had earlier been supposed, and in some respects have made it easier to reconcile physiological and perceptual findings.
- Publication
Nature reviews. Neuroscience, 2007, Vol 8, Issue 4, p276
- ISSN
1471-003X
- Publication type
Journal Article
- DOI
10.1038/nrn2094