L (1992) The color hexagon: a chromaticity diagram based on photoreceptor excitations as a generalized representation of colour opponency. From Wordnik.com. [PLoS ONE Alerts: New Articles] Reference
Researchers have long regarded color opponency to be hardwired in the brain, completely forbidding perception of reddish green or yellowish blue. From Wordnik.com. [Scientific American] Reference
Therefore we sure need to find another book before they’re use Ancient StarsCharts opponency to V. Family. From Wordnik.com. [Mini Star | SciFi, Fantasy & Horror Collectibles] Reference
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