D'Zmura M, Knoblauch K, Henaff M A, Michel F
Department of Cognitive Sciences, UC Irvine 92697, USA.
Vision Res. 1998 Nov;38(21):3455-9. doi: 10.1016/s0042-6989(97)00407-0.
Color constancy depends on sensitivity to change in both illumination spectral properties and object position. We investigated this latter form of color constancy by asking a cerebral achromatopsic to name the colors of papers that were presented atop black, gray or white backgrounds under identical illumination. Comparison of color names across background conditions reveals poor constancy, characterized by a contrasting of foreground and background values that is not corrected by proper anchoring.
颜色恒常性取决于对视场光谱特性变化和物体位置变化的敏感度。我们通过让一位大脑性全色盲患者说出在相同光照下置于黑色、灰色或白色背景上的纸张颜色，来研究后一种形式的颜色恒常性。跨背景条件比较颜色名称发现恒常性较差，其特征是前景和背景值的对比未通过适当的锚定得到校正。
