The machinery of colour vision

@article{Solomon2007TheMO,
  title={The machinery of colour vision},
  author={Samuel G. Solomon and Peter Lennie},
  journal={Nature Reviews Neuroscience},
  year={2007},
  volume={8},
  pages={276-286}
}
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… 

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...

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