Shibata Michiaki, Kawachi Yousuke, Gyoba Jiro
Tohoku University, Sendai 980-8576, Japan.
Atten Percept Psychophys. 2010 Feb;72(2):387-97. doi: 10.3758/APP.72.2.387.
We investigated the combined effects of perceptual grouping cues (proximity and contour closure/proximity and orientation similarity) on object representation, using motion-induced blindness, a phenomenon in which salient visual stimuli perceptually disappear when surrounded by moving patterns. We presented as visual targets two stimuli in which a solid square was embedded in an outlined square. Participants reported whether the targets disappeared independently or simultaneously. The results showed that a relatively high proximity cue (with a 0.2-deg separation between the targets) modulated the perceptions of the independent or simultaneous disappearances of targets, regardless of other grouping cues. The contour closure cue modulated these disappearances in the 0.4- to 0.8-deg separations. Finally, the orientation similarity cue began to modulate these disappearances in the 0.6- to 0.8-deg separations. We suggest that the separation between the visual stimuli modulates the combined effects of perceptual grouping cues on complete object representation.
我们利用运动诱导失明现象（一种显著视觉刺激在被移动图案包围时会在感知上消失的现象），研究了感知分组线索（接近度与轮廓闭合/接近度与方向相似性）对物体表征的综合影响。我们将两个刺激作为视觉目标呈现，其中一个实心正方形嵌入在一个轮廓正方形中。参与者报告目标是独立消失还是同时消失。结果表明，相对较高的接近度线索（目标之间有0.2度的间距）调节了目标独立或同时消失的感知，而与其他分组线索无关。轮廓闭合线索在0.4至0.8度的间距中调节了这些消失情况。最后，方向相似性线索在0.6至0.8度的间距中开始调节这些消失情况。我们认为视觉刺激之间的间距调节了感知分组线索对完整物体表征的综合影响。
