An experiment was performed to determine the effect of exposure time on color discrimination. Five durations ranging from 0.02 to 5 sec were used. Discrimination continued to improve as exposure was lengthened. Some possible explanations for these results are offered.
MICHAEL H. SIEGEL, "Color Discrimination as a Function of Exposure Time*," J. Opt. Soc. Am. 55, 566-568 (1965)