Dörr S, Neumeyer C
Institut für Zoologie III, Johannes Gutenberg-Universität, Mainz, Germany.
J Comp Physiol A. 2000 Sep;186(9):885-96. doi: 10.1007/s003590000141.
Color constancy was investigated in behavioral training experiments on colors ranging from blue to yellow, located in the color space close to Planck's locus representing the main changes in natural skylight. Two individual goldfish were trained to peck at a test field of medium hue out of a series of 13-15 yellowish and bluish test fields presented simultaneously on a black background. During training the tank in which the fish were swimming freely was illuminated with white light. Correct choices were rewarded with food. During the tests differently saturated yellow or blue illumination was used. The degree of color constancy was inferred from the choice behavior under these illuminations. Perfect color constancy was found up to a certain degree of saturation of the colored light. Beyond this level test fields other than the training test field were chosen, indicating imperfect color constancy. Color constancy was quantified by applying color metrics on the basis of the goldfish cone sensitivity functions.
在行为训练实验中，研究了颜色恒常性，实验中的颜色范围从蓝色到黄色，位于接近普朗克轨迹的颜色空间中，该轨迹代表自然天光的主要变化。训练两条金鱼，使其从同时呈现在黑色背景上的一系列13 - 15个淡黄色和淡蓝色测试场中啄食中等色调的测试场。在训练期间，鱼在其中自由游动的水箱用白光照明。正确选择会得到食物奖励。在测试期间，使用不同饱和度的黄色或蓝色照明。根据这些照明条件下的选择行为推断颜色恒常性的程度。在一定程度的彩色光饱和度范围内发现了完美的颜色恒常性。超过这个水平，会选择除训练测试场之外的其他测试场，这表明颜色恒常性不完美。通过基于金鱼视锥细胞敏感性函数应用颜色度量来量化颜色恒常性。
