The elucidation of the unified color sense mechanism to generate both of the spacial color contrast effect and color constancy effect.

本研究旨在验证背景与物体的空间色彩对比度效应和色彩恒定效应是由同一机制产生的假设，结果表明，在二维刺激的色彩对比度和没有日常经验的特定色彩光照条件下，色彩对比度和锥体自适应/锥体信号增益控制成为主要因素，这些效应是自动确定的。而在三维放置的颜色对比度和更常见的颜色光照条件下，颜色对比度和颜色恒定效应是由照度的估计决定的，由于在本实验条件下，颜色对比度和颜色恒定效应中的两个决定因素同时被替换，这表明它们具有相同的机制，或者至少是一个共同的机制作为决定这些效应的机制的输入。

This study was aimed for inspection of the hypothesis that two effects, the spacial color contrast effect between a background and objects and the color constancy effect, were generated by the same mechanism.Results indicated that in the color contrast in two-dimensional stimuli and the specific color illumination condition without a daily experience, color contrast and cone adaptation/cone signal gain control became the principal factor, and these effects were determined automatically. Whereas, in the color contrast of the three-dimensional placement and a more common color illumination condition, the color contrast and color constancy effects were determined by the estimation of the illumination.Because two determinants were replaced under this experimental condition in both color contrast and color constancy effect at the same time, it suggests that both of them have the same mechanism or at least, a common mechanism is used as input to mechanisms determining these effects.