Murray Ian J, Kulikowski Janus J, Stanikunas Rytis, Vaitkevicius Henrikas, Daugirdiene Avsra
Faculty of Life Sciences, Department of Optometry and Neuroscience, UMIST, PO Box 88, Manchester M60 1QD, UK.
Perception. 2005;34(8):927-32. doi: 10.1068/p5301.
Sequential asymmetrical colour matching of forty Munsell samples simulated under illuminant C and one of eight test illuminants was carried out. The subjects matched the appearance of each sample under illuminant C with its appearance under the test illuminant. Samples and background (N7) were presented for 1 s under the test illuminant and were isoluminant with each other. Subjects adjusted hue, chroma, and value under illuminant C. The experiments distinguished two groups of subjects; some observers needed to reduce the luminance of the sample to make a match while others did not. This 'dimming' occurred when the matches were close to cardinal axes, especially the tritanopic confusion line. A model of luminance and cone-opponent mechanisms contributing to brightness can account for the dimming effect. Details of analysis in cone-opponent space (L - M, L + M - S, L + M) are presented in the companion paper (Stanikunas et al, 2005 Perception 34 this issue).
对在C光源和八种测试光源之一的条件下模拟的40个孟塞尔样本进行了顺序不对称颜色匹配。受试者将每个样本在C光源下的外观与在测试光源下的外观进行匹配。样本和背景（N7）在测试光源下呈现1秒，且彼此等亮度。受试者在C光源下调整色调、彩度和明度。实验区分了两组受试者；一些观察者需要降低样本的亮度才能进行匹配，而另一些则不需要。当匹配接近基本轴，特别是三原色混淆线时，就会出现这种“变暗”现象。一个有助于亮度的亮度和锥体对立机制模型可以解释这种变暗效应。锥体对立空间（L - M、L + M - S、L + M）的分析细节在配套论文中给出（斯塔尼库纳斯等人，《感知》2005年第34卷，本期）。
