Ingling C R, Tsou B H
J Opt Soc Am A. 1985 Aug;2(8):1375-8. doi: 10.1364/josaa.2.001375.
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.
人们普遍认为,异色闪烁光度法近乎完美的加和性意味着视觉系统中存在一个消色差通道,该通道能精确地对R锥和G锥信号进行求和。对于闪烁光度法具有加和性而言,检测闪烁刺激的通道并不一定需要对锥信号进行相加。