McCarter A
Perception. 1979;8(1):105-14. doi: 10.1068/p080105.
The chromatic Hermann grid illusion was investigated in sixteen subjects, with variation of the lightness contrast between the chromatic inducing squares and the background, and the saturation and hue of the inducing squares. Subjects made magnitude estimates of the sharpness and clarity of perceived dots at the intersections of the grid, and matched the appearances of the dots with Munsell chips. A chromatic induction effect was found to occur in the absence of lightness contrast, but the sharpness of the illusory dots increased with increasing lightness contrast (p less than 0.001). The saturation of the perceived dots increased with increases in the saturation of the inducing squares (p less than 0.05), and was higher for the longer wavelengths than for the shorter wavelengths (p less than 0.005). Neural units with center-surround arrangements responding differentially to light of the same color in the center and the surround, e.g. red off-centers and red on-surrounds, could account for the chromatic induction effect.
对16名受试者进行了彩色赫尔曼栅格错觉实验，改变了彩色诱导方块与背景之间的明度对比度，以及诱导方块的饱和度和色调。受试者对栅格交叉点处感知到的点的清晰度和鲜明度进行了量级估计，并用孟塞尔色卡匹配了这些点的外观。发现在没有明度对比度的情况下会出现彩色诱导效应，但错觉点的清晰度随着明度对比度的增加而增加（p小于0.001）。感知到的点的饱和度随着诱导方块饱和度的增加而增加（p小于0.05），并且对于较长波长的点比对于较短波长的点更高（p小于0.005）。具有中心-外周排列的神经单元，对中心和外周相同颜色的光有不同反应，例如红色中心抑制和红色外周兴奋，可能解释了彩色诱导效应。
