Gniubkin V F, Kondrashev S L, Orlov O Iu
Zh Vyssh Nerv Deiat Im I P Pavlova. 1975 Sep-Oct;25(5):1083-90.
Colour vision and constancy of colour perception in Bufo bufo L, were examined by means of unconditioned reaction of choosing moving and stationary models of females by males during breeding season. The males chose blue and dark blue models. Control of the choice of blue models presented in pairs with models of different shades of grey proves the existence of colour vision in Bufo bufo L. The choice of blue models has been observed under significantly varying conditions: both with artificial illumination and in sunlight. This attests the capacity of toads for constant colour perception. When a model was presented against a saturated red background, colour contrast was observed: under such conditions the toads chose the grey models which evoked no reactions when presented against white background.
通过在繁殖季节雄性蟾蜍对移动和静止雌性模型的无条件选择反应，研究了中华大蟾蜍的色觉和颜色感知恒常性。雄性蟾蜍选择蓝色和深蓝色模型。将蓝色模型与不同灰度的模型成对呈现时对蓝色模型选择的控制，证明了中华大蟾蜍存在色觉。在显著不同的条件下都观察到了对蓝色模型的选择：无论是在人工照明下还是在阳光下。这证明蟾蜍具有颜色感知恒常性的能力。当一个模型置于饱和红色背景下时，观察到了颜色对比：在这种条件下，蟾蜍选择灰色模型，而灰色模型在白色背景下呈现时不会引起反应。
