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For questions relating to optical illusions, how our perceptual and cognitive mechanisms give rise to them, the neurological basis of perceiving optical illusions and general queries relating to optical illusion research.
3
votes
Is this some sort of soft-coded Grapheme-Color synethesia?
Nick's answer links to the very interesting geometrical discussion by the authors, but they leave out some background. The color after-image phenomena is best described by opponent-process theory. T …