Edge-assignment and figure-ground segmentation in short-term visual matching
Edge-assignment and figure-ground segmentation in short-term visual matching
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DOI：
10.1006/cogp.1996.0018
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发表时间：
1996-12-01
影响因子：
2.6
通讯作者：
Baylis, GC
中科院分区：
文献类型：
--
作者：
Driver, J;Baylis, GC
八个实验研究了边缘分配在轮廓匹配任务中的作用。受试者判断是否锯齿状的垂直边缘的探头形状匹配的锯齿状边缘，划分两个相邻的形状，在紧接在前的图形-背景显示。分割因素偏向分配这个分割边缘朝向一个图形的形状只是它的一个方面。当探针边缘有相应的分配时，受试者在匹配时更快，更准确。鲁宾（Rubin，1915/1958）报告说，这种效应的迅速出现为数字对地面的长期记忆优势提供了一个在线模拟。目前的在线优势被发现时，数字被定义为相对的对比度和大小，或对称性，并不能被解释为仅仅是自动提请注意到的位置的图形区域。然而，刻意关注一个模糊的图形-背景展示区域确实产生了优势。我们建议，片面分配分割边缘可能是强制性的视觉。(C)出版社：Academic Press，Inc.
Eight experiments examined the role of edge-assignment in a contour matching task. Subjects judged whether the jagged vertical edge of a probe shape matched the jagged edge that divided two adjoining shapes in an immediately preceding figure-ground display. Segmentation factors biased assignment of this dividing edge toward a figural shape on just one of its sides. Subjects were faster and more accurate at matching when the probe edge had a corresponding assignment. The rapid emergence of this effect provides an on-line analog of the long-term memory advantage for figures over grounds which Rubin (1915/1958) reported. The present on-line advantage was found when figures were defined by relative contrast and size, or by symmetry, and could not be explained solely by the automatic drawing of attention toward the location of the figural region. However, deliberate attention to one region of an otherwise ambiguous figure-ground display did produce the advantage. We propose that one-sided assignment of dividing edges may be obligatory in vision. (C) 1996 Academic Press, Inc.