Buck S L, Knight R F, Bechtold J
Department of Psychology, University of Washington, PO Box 351525, 98195, Seattle, WA, USA.
Vision Res. 2000;40(24):3333-44. doi: 10.1016/s0042-6989(00)00191-7.
To investigate how rod signals influence hue perception and how this influence can be incorporated into opponent-color models, we measured the shift of unique-hue loci under dark-adapted conditions compared with cone-plateau conditions. Rod signals produced shifts of all spectral unique hues (blue, green, yellow) but in a pattern that was inconsistent with simple additive combinations of rod and cone inputs in opponent-color models. The shifts are consistent with non-linear models in which rod influence requires non-zero cone signals. Cone-signal strength may modulate or gate rod influence, or rod signals may change the gain of cone pathways.
为了研究视杆信号如何影响色调感知以及这种影响如何纳入对立色模型，我们测量了与视锥平台条件相比，暗适应条件下唯一色调位点的偏移。视杆信号使所有光谱唯一色调（蓝色、绿色、黄色）发生偏移，但这种模式与对立色模型中视杆和视锥输入的简单相加组合不一致。这些偏移与非线性模型一致，在该模型中视杆影响需要非零视锥信号。视锥信号强度可能调节或控制视杆影响，或者视杆信号可能改变视锥通路的增益。
