Figure-ground, that is the segmentation of visual information into objects and their surrounding backgrounds, provides structure for visual attention. Recent evidence shows a novel role of vergence eye movements in visual attention. In the present work, vergence responses during figure-ground segregation tasks are psychophysically investigated. We show that during a figure-ground detection task, subjects convergence their eyes. Vergence eye movements are larger in figure trials than in ground trials. In detected figures trials, vergence are stronger than in trials where the figure went unnoticed. Moreover in figure trials, vergence responses are stronger to low-contrast figures than to high-contrast figures. We argue that these discriminative vergence responses have a role in figure-ground.

Figure-ground 是将视觉信息分割为对象及其周围背景，为视觉注意力提供结构。最近的证据表明聚散眼运动在视觉注意中的新作用。在目前的工作中，对图形-背景分离任务期间的聚散响应进行了心理物理学研究。我们表明，在图形地面检测任务中，受试者会聚他们的眼睛。图形试验中的聚散眼运动比地面试验中的大。在检测到的数字试验中，聚散度比在数字未被注意到的试验中更强。此外，在图形试验中，对低对比度图形的聚散反应比对高对比度图形更强。我们认为这些有区别的聚散响应在图形背景中起作用。