Perkins D N
Perception. 1976;5(4):393-406. doi: 10.1068/p050393.
'Good form' theories of perception leave some latitude concerning how casually or cautiously order is imposed on the stimulus. Exploring this issue, the present experiment introduced a series of figures admitting up to three alternative 'good' readings. Eight college students estimated two angles in each of fifty-six pictured spatial forms. Theory predicted that geometrical regularities of rectangularity and symmetry would dominate their estimates. But a regularity would rarely appear when inconsistent with projective geometry and the given figure. The accuracy of subjects' estimates was also assessed. The results confirmed the hypotheses at high significance levels, arguing that such figures are interpreted through an order-imposing process restrained by projective geometry, and that subjects could make roughly accurate estimates based on the imposed order. Parallels with computer scene analysis are discussed. It is concluded that perceptual presumption of certain 'good forms' runs little risk of misinterpreting the stimulus.
“良好形式”的知觉理论在关于如何随意或谨慎地将秩序强加于刺激方面留有一定余地。为探究这一问题，本实验引入了一系列图形，这些图形允许有多达三种不同的“良好”解读。八名大学生对五十六个呈现出的空间图形中的每一个的两个角度进行了估计。理论预测，矩形性和对称性的几何规律将主导他们的估计。但是，当与射影几何和给定图形不一致时，这种规律很少会出现。还评估了受试者估计的准确性。结果在高显著性水平上证实了这些假设，表明此类图形是通过受射影几何约束的秩序强加过程来解释的，并且受试者可以基于强加的秩序做出大致准确的估计。文中还讨论了与计算机场景分析的相似之处。得出的结论是，对某些“良好形式”的知觉假设几乎不存在误读刺激的风险。
