PubMed · 2993564
Flicker photometry and achromatic-channel structure.
Abstract
It is widely assumed that the near-perfect additivity of heterochromatic flicker photometry implies the existence of an achromatic channel in the visual system, which accurately sums R- and G-cone signals. For flicker photometry to be additive, the channel that detects the flicker stimulus need not add cone signals.
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C R Ingling, B H Tsou. 1985. Flicker photometry and achromatic-channel structure.. https://doi.org/10.1364/josaa.2.001375
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