Perrett D I, Harries M H
Department of Psychology, University of St Andrews, Fife, UK.
Perception. 1988;17(6):703-20. doi: 10.1068/p170703.
The way in which human subjects distribute their time when attempting to learn the surface appearance of objects placed on a stand free to rotate about its vertical axis was investigated. Experiments were undertaken to establish whether observers concentrate their time on particular views and, if so, to determine the image characteristics of the preferred views. For tetrahedra, subjects concentrated on views which presented a face or an edge centred on the line of sight. Both of these views were symmetric about the vertical axis. For potatoes as examples of opaque smooth objects, subjects concentrated on four views in which the object's principal (long) axis was oriented side-on or end-on to their line of sight. For such views the horizontal width (and surface area) of the object's image had maximum and minimum values. Preferred views were not systematically related to views defined as stable from the appearance of surface boundaries or 'singularities'.
研究了人类受试者在试图了解放置在可绕其垂直轴自由旋转的支架上的物体的表面外观时分配时间的方式。进行了实验，以确定观察者是否将时间集中在特定视图上，如果是，则确定首选视图的图像特征。对于四面体，受试者集中在呈现以视线为中心的面或边的视图上。这两种视图都关于垂直轴对称。以土豆作为不透明光滑物体的例子，受试者集中在四个视图上，在这些视图中，物体的主（长）轴与他们的视线呈侧视或端视方向。对于这样的视图，物体图像的水平宽度（和表面积）具有最大值和最小值。首选视图与根据表面边界或“奇点”外观定义为稳定的视图没有系统的关联。
