Gniubkin V F
Biofizika. 1976 Nov;21(6):1087-91.
The paper continues the previous study (1) on some aspects of toad colour vision. It deals with signs which allow the visual system of toad to recognize blue stimuli. The behavioural experiments were performed during the breeding season when males exhibited the clasping of stationary blue stimuli. It is shown that in spite of some variety of spectral compositions of light sources males clasp only blue stimuli on white surrounding background. Under fixed illumination on white background males clasp blue stimuli, while on red and/or yellow background they clasp grey stimuli as well. These responses appear explicable if it is assumed that the surrounding background is the main sign of a spectral composition of illumination with "the simultaneous colour contrast" being a part of the constant colour perception mechanism (2).
本文延续了之前关于蟾蜍色觉某些方面的研究(1)。它探讨了能让蟾蜍视觉系统识别蓝色刺激的信号。行为实验是在繁殖季节进行的，此时雄性蟾蜍会对静止的蓝色刺激物进行抱握。结果表明，尽管光源的光谱组成存在一定差异，但雄性蟾蜍在白色背景下只对蓝色刺激物进行抱握。在白色背景下固定光照时，雄性蟾蜍会抱握蓝色刺激物，而在红色和/或黄色背景下，它们也会抱握灰色刺激物。如果假定周围背景是光照光谱组成的主要信号，且“同时颜色对比”是恒定颜色感知机制的一部分(2)，那么这些反应似乎是可以解释的。
