Zaidi Q
Vision Res. 1986;26(12):1925-38. doi: 10.1016/0042-6989(86)90118-5.
Crawford's (1965) experiment [Vision Res. 5, 71-78], implies that there is a failure of linearity when maximum saturation color matches are compared to Maxwell matches. This implication was tested by making the same maximum saturation matches with and without the superposition of a monochromatic desaturating light. A nonlinearity in color matching for short wavelengths was measured without the possible computational or pre-receptoral artifacts in Crawford's design. The data presented are consistent with the hypothesis that this nonlinearity is due to post-receptoral interactions and not to a failure of spectral invariance or to the participation in the match of more than three types of photopigments.
克劳福德（1965年）的实验[《视觉研究》5，71 - 78页]表明，当将最大饱和度颜色匹配与麦克斯韦匹配进行比较时，存在线性度失效的情况。通过在有和没有单色去饱和光叠加的情况下进行相同的最大饱和度匹配来检验这一推断。在没有克劳福德设计中可能存在的计算或感受器前伪像的情况下，测量了短波长颜色匹配中的非线性度。所呈现的数据与以下假设一致：这种非线性度是由于感受器后相互作用，而不是由于光谱不变性的失效或超过三种类型光色素参与匹配所致。
