Department of Psychology, University of Milano-Bicocca, Viale dell'Innovazione, 10, 20126, Milano, Italy.
Behav Res Methods. 2011 Mar;43(1):215-23. doi: 10.3758/s13428-010-0035-y.
The constancy of a 16-step achromatic Munsell scale was tested with regards to background variations in two experiments. In experiment 1 three groups of observers were asked to find lightness matches for targets in simultaneous lightness displays by using a 16-step achromatic Munsell scale placed on a white, black, or white-black checkered background. In experiment 2, a yellow-blue checkered background and a green-red checkered background replaced Munsell scales on the black and on the white backgrounds. Significant effects of scale background on matches were found only in experiment 1, suggesting that background luminance is a crucial factor in the overall appearance of the scale. The lack of significant differences in experiment 2, however, may stand for an overall robustness of the scale with respect to background luminance changes occurring within certain luminance ranges.
在两个实验中，我们对 16 级消色孟塞尔量表的恒常性进行了检验，观察了背景变化的影响。在实验 1 中，三组观察者被要求在同时呈现明度的视场中，通过放置在白色、黑色或黑白棋盘格背景上的 16 级消色孟塞尔量表来寻找明度匹配。在实验 2 中，黄色-蓝色棋盘格背景和绿色-红色棋盘格背景分别替代了黑色和白色背景上的孟塞尔量表。只有在实验 1 中才发现了量表背景对匹配的显著影响，这表明背景亮度是量表整体外观的一个关键因素。然而，在实验 2 中没有发现显著差异，这可能代表了该量表在一定亮度范围内背景亮度变化时的整体稳健性。
