Ashby F G, Boynton G, Lee W W
Department of Psychology, University of California, Santa Barbara 93106.
Percept Psychophys. 1994 Jan;55(1):11-27. doi: 10.3758/bf03206876.
Categorization response time (RT) was examined in three separate experiments, in each of which exemplars varied on two physical dimensions. Three different types of stimuli were used: (1) horizontal and vertical line segments of varying length that were joined at an upper left corner, (2) rectangles of varying width and height, and (3) circles or semicircles of varying size with a radial arm of varying orientation. No evidence was found that stimulus familiarity or the category prototypes played any special role in determining categorization RT. Instead, RT decreased with distance from the stimulus to the categorization decision bound.
在三个独立的实验中对分类反应时间（RT）进行了研究，每个实验中的样本在两个物理维度上有所不同。使用了三种不同类型的刺激：（1）长度不同的水平和垂直线段，它们在左上角相连；（2）宽度和高度不同的矩形；（3）大小不同的圆形或半圆形，带有方向不同的径向臂。没有发现刺激熟悉度或类别原型在决定分类反应时间方面起任何特殊作用。相反，反应时间随着从刺激到分类决策边界的距离而减少。
