Abstract
Rushton and Baker1 have shown that the ratio of R to G cones varies between observers. We use this variability to ask if observers who are rich, say, in R-cone input to the Vλ or flicker channel are also likely to be rich in R-cone input to the r-g and y-b opponent-color channels. Results for the r-g channel (eight observers): Although the R/G flicker ratio varied considerably across observers, the spectral position of unique yellow varied little and did not correlate with the R/G ratio. Conclusions are similar for the y-b channel; there is no correlation between the amounts of a B primary required to cancel yellowness from long- and middle-wavelength test lights and amounts of these lights required in a flicker match.
© 1985 Optical Society of America
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