Attentional Signatures of Perception: Multiple Object Tracking Reveals the Automaticity of Contour Interpolation

被引:23
作者
Keane, Brian P. [1 ]
Mettler, Everett [1 ]
Tsoi, Vicky [1 ]
Kellman, Philip J. [1 ]
机构
[1] Univ Calif Los Angeles, Dept Psychol, Los Angeles, CA 90024 USA
基金
美国国家科学基金会;
关键词
contour interpolation; illusory contours; occluded contours; multiple object tracking; attention; KANIZSA SUBJECTIVE FIGURES; PARTLY OCCLUDED OBJECTS; CORTICAL AREAS V1; ILLUSORY CONTOURS; SPATIAL ATTENTION; VISUAL INTERPOLATION; LOW-LEVEL; COMPLETION; DYNAMICS; SELECTION;
D O I
10.1037/a0020674
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Multiple object tracking (MOT) is an attentional task wherein observers attempt to track multiple targets among moving distractors. Contour interpolation is a perceptual process that fills-in nonvisible edges on the basis of how surrounding edges (inducers) are spatiotemporally related. In five experiments, we explored the automaticity of interpolation through its influences on tracking. We found that (1) when the edges of targets and distractors jointly formed dynamic illusory or occluded contours, tracking accuracy worsened; (2) when interpolation bound all four targets together, performance improved; (3) when interpolation strength was weakened (by altering the size or relative orientation of inducing edges), tracking effects disappeared; and (4) real and interpolated contours influenced tracking comparably, except that real contours could more effectively shift attention toward distractors. These results suggest that interpolation's characteristics-and, in particular, its automaticity-can be revealed through its attentional influences or "signatures" within tracking. Our results also imply that relatively detailed object representations are formed in parallel, and that such representations can affect tracking when they become relevant to scene segmentation.
引用
收藏
页码:685 / 698
页数:14
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