Uchikawa K, Ikeda M
J Opt Soc Am A. 1986 Jan;3(1):34-9. doi: 10.1364/josaa.3.000034.
Successive and simultaneous brightness comparisons between test colors and a comparison white were performed to study how accurately the brightness of colored lights was maintained in memory. The test colors were monochromatic lights chosen from 410 to 670 nm and a white light. The stimulus duration was 1 sec, and test-comparison stimulus-onset asynchronies in successive comparisons were more than 11 sec depending on the experiments. The results show that the variability of successive brightness comparisons was 1.5-2.0 times greater than that of simultaneous brightness comparison. This degree of deterioration of brightness discrimination is reasonably consistent with those of hue and saturation discrimination previously reported. Brightness shifts in the darker direction were found for most colors.
进行了测试颜色与比较白色之间的连续和同时亮度比较，以研究彩色光的亮度在记忆中保持的准确程度。测试颜色为从410至670纳米选取的单色光和一束白光。刺激持续时间为1秒，在连续比较中，测试-比较刺激起始异步时间根据实验不同超过11秒。结果表明，连续亮度比较的变异性比同时亮度比较的变异性大1.5至2.0倍。这种亮度辨别能力的下降程度与先前报道的色调和饱和度辨别能力的下降程度合理地一致。发现大多数颜色的亮度向较暗方向偏移。
