Kanbe Fumio
Faculty of Education, Hakuoh University, Oyama, Tochigi, Japan.
Iperception. 2018 Nov 5;9(6):2041669518809717. doi: 10.1177/2041669518809717. eCollection 2018 Nov-Dec.
A previous study by the author found that discrimination latencies for figure pairs with the same topological structure (isomorphic pairs) were longer than for pairs with different topological structures (nonisomorphic pairs). These results suggest that topological sensitivity occurs during figure recognition. However, sameness was judged in terms of both shape and orientation. Using this criterion, faster discrimination of nonisomorphic pairs may have arisen from the detection of differences in the corresponding locations of the paired figures, which is not a topological property. The current study examined whether topological sensitivity occurs even when identity judgments are based on the sameness of shapes, irrespective of their orientation, where the sameness of location is not ensured. The current results suggested the involvement of topological sensitivity, indicating that processing of structural properties (invariant features) of a figure may be prioritized over processing of superficial features, such as location, length, and angles, in figure recognition.
作者之前的一项研究发现，具有相同拓扑结构的图形对（同构对）的辨别潜伏期比对具有不同拓扑结构的图形对（非同构对）的辨别潜伏期更长。这些结果表明，拓扑敏感性在图形识别过程中出现。然而，同一是根据形状和方向两者来判断的。使用这个标准，非同构对的更快辨别可能源于对配对图形相应位置差异的检测，而这不是一种拓扑属性。当前的研究考察了即使身份判断基于形状的相同性而不考虑其方向，且位置相同性无法保证时，拓扑敏感性是否依然会出现。当前的结果表明存在拓扑敏感性，这表明在图形识别中，对图形结构属性（不变特征）的处理可能优先于对诸如位置、长度和角度等表面特征的处理。
