The shape of holes
The shape of holes
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DOI：
10.1016/s0010-0277(02)00183-x
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发表时间：
2003-02-01
期刊：
影响因子：
3.4
通讯作者：
Croucher, CJ
中科院分区：
文献类型：
--
作者：
Bertamini, M;Croucher, CJ
孔的形状可以像物体的形状一样精确地识别（Palmer，S. E.（1999年）。视觉科学：从光子到现象学。马萨诸塞州剑桥：MIT Press），但是由孔包围的区域是背景区域，并且可以证明背景区域不被表示为具有形状。如果有洞的话，那么洞的形状是什么？为了解决这个明显的悖论，我们建议，一个洞的形状是间接从周围物体的形状。我们利用了观察者判断凸顶点的位置比凹顶点的位置更快的事实（Perception 30（2001）1295），并使用图形/地面的图形操作，我们发现当相同的轮廓呈现为孔而不是物体时，相对速度的逆转。如果轮廓被感知为属于洞而不是周围的物体，那么对物体和洞刺激的反应就不会有质的差异。我们的结论是，边界孔的轮廓自动分配给周围的对象，并在一个区域的感知从对象到孔的变化总是急剧变化的编码信息。我们讨论了许多有趣的方面孔作为一个主题的研究在不同的学科，并预测，许多见解，特别是形状将继续来自孔。(C)2002 Elsevier Science B. V.保留所有权利。
The shape of holes can be recognized as accurately as the shape of objects (Palmer, S. E. (1999). Vision science: photons to phenomenology. Cambridge, MA: MIT Press), yet the area enclosed by a hole is a background region, and it can be demonstrated that background regions are not represented as having shape. What is therefore the shape of a hole, if any? To resolve this apparent paradox, we suggest that the shape of a hole is available indirectly from the shape of the surrounding object. We exploited the fact that observers are faster at judging the position of convex vertices than concave ones (Perception 30 (2001) 1295), and using a figural manipulation of figure/ground we found a reversal of the relative speeds when the same contours were presented as holes instead of objects. If contours were perceived as belonging to the hole rather than the surrounding object then there would have been no qualitative difference in responses to the object and hole stimuli. We conclude that the contour bounding a hole is automatically assigned to the surrounding object, and that a change in perception of a region from object to hole always drastically changes the encoded information. We discuss the many interesting aspects of holes as a subject of study in different disciplines and predict that much insight especially about shape will continue to come from holes. (C) 2002 Elsevier Science B.V. All rights reserved.