Perrett D I, Harries M H, Looker S
Psychological Laboratory, St Andrews University, Fife, Scotland.
Perception. 1992;21(4):497-515. doi: 10.1068/p210497.
Measurements were made of the way human subjects visually inspected an idealized machined tool part (a 'widget') while learning the three-dimensional shape of the object. Subjects were free to rotate the object about any axis. Inspection was not evenly distributed across all views. Subjects focused on views where the faces of the object were orthogonal to the line of sight and the edges of the object were aligned parallel or at right angles to the gravitational axis. These 'face' or 'plan' views were also the easiest for subjects to bring to mind in a mental imagery task. By contrast, when subjects were instructed to imagine the views displaying the most structural information they visualized views lying midway between face views.
研究人员对人类受试者在学习理想化机械加工工具部件（一个“小装置”）的三维形状时目视检查该部件的方式进行了测量。受试者可以自由地围绕任何轴旋转该物体。检查在所有视图上的分布并不均匀。受试者关注的是物体的面与视线正交且物体的边缘与重力轴平行或成直角对齐的视图。这些“正面”或“平面”视图也是受试者在心理意象任务中最容易想到的视图。相比之下，当受试者被要求想象显示最多结构信息的视图时，他们想象的是介于正面视图之间的中间视图。
