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Grouping puts figure-ground assignment in context by constraining propagation of edge assignment

机译：分组通过限制边缘分配的传播将图形-地面分配置于上下文中

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摘要

Figure-ground organization involves the assignment of edges to a figural shape on one or the other side of each dividing edge. Established visual cues for edge assignment primarily concern relatively local rather than contextual factors. In the present article, we show that an assignment for a locally unbiased edge can be affected by an assignment of a remote contextual edge that has its own locally biased assignment. We find that such propagation of edge assignment from the biased remote context occurs only when the biased and unbiased edges are grouped. This new principle, whereby grouping constrains the propagation of figural edge assignment, emerges from both subjective reports and an objective short-term edge-matching task. It generalizes from moving displays involving grouping by common fate and collinearity, to static displays with grouping by similarity of edge-contrast polarity, or apparent occlusion. Our results identify a new contextual influence on edge assignment. They also identify a new mechanistic relation between grouping and figure-ground processes, whereby grouping between remote elements can constrain the propagation of edge assignment between those elements. Supplemental materials for this article may be downloaded from http://app.psychonomic-journals.org/content/supplemental.
机译：图形地面组织涉及在每个分隔边缘的一侧或另一侧将边缘分配为图形形状。已建立的用于边缘分配的视觉提示主要涉及相对局部而非上下文因素。在本文中，我们显示了对本地无偏边的分配可能会受到具有自己的本地有偏分配的远程上下文边的分配的影响。我们发现，只有当有偏和无偏的边缘被分组时，偏向远程上下文的边分配的这种传播才会发生。这种新的原则，即分组限制了图形边缘分配的传播，是从主观报告和客观的短期边缘匹配任务中产生的。它从涉及通过共同的命运和共线性进行分组的移动显示，到通过边缘对比极性的相似性或明显的遮挡进行分组的静态显示进行了概括。我们的结果确定了对边分配的新上下文影响。他们还确定了分组与图形-地面过程之间的一种新的机械关系，从而远程元素之间的分组可以约束那些元素之间的边缘分配的传播。本文的补充材料可以从http://app.psychonomic-journals.org/content/supplemental下载。

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