Rock I, Nijhawan R, Palmer S, Tudor L
University of California, Berkeley 94720.
Perception. 1992;21(6):779-89. doi: 10.1068/p210779.
It is widely acknowledged that a precondition for the perception of the world of objects and events is an early process of organization, and it has generally been assumed that such organization is based on the Gestalt laws of grouping. However, the stage at which such grouping occurs, whether early or late, is an empirical question. It is demonstrated in two experiments that grouping by similarity of neutral color is based not on similarity of absolute luminance at the level of the proximal stimulus, but on phenomenal similarity of lightness resulting from the achievement of lightness constancy. An alternative explanation of such grouping based on the equivalence of luminance ratios between elements and background is ruled out by appropriate control conditions.
人们普遍认为，对物体和事件世界的感知的一个先决条件是早期的组织过程，并且通常认为这种组织是基于格式塔分组定律。然而，这种分组发生的阶段，无论是早期还是晚期，都是一个实证问题。两项实验表明，中性颜色相似性分组不是基于近端刺激水平上的绝对亮度相似性，而是基于明度恒常性实现所产生的明度现象相似性。基于元素与背景之间亮度比率等效性的这种分组的另一种解释被适当的控制条件排除。
