Katsumata Hiromu
a Department of Sports and Health Science , Daito-Bunka University , Tokyo , Japan.
J Mot Behav. 2014;46(2):83-93. doi: 10.1080/00222895.2013.867252. Epub 2014 Jan 21.
Given that visual estimation of an object's size is affected by an illusory figure, the present study investigates the Ebbinghaus size-illusion effect on visuomotor performance within different preview durations for viewing an object (no preview, 300, 700, 1500, and 3000 ms) before initiating the movement. Twenty participants performed the following actions: (a) grasping the object and (b) matching the perceived object size with the finger aperture configuration as in the grasping task. The illusion affected the grasping aperture size only in the no- and 300-ms preview durations, while the matching aperture was affected across all preview conditions. These results suggest that the preview duration influences the size illusion to affect the grasping performance, and subjects adopt different visuomotor processes, depending on preview duration.
鉴于对物体大小的视觉估计会受到错觉图形的影响，本研究调查了在开始动作前，针对不同的物体预览持续时间（无预览、300、700、1500和3000毫秒），埃宾浩斯大小错觉效应如何影响视觉运动表现。20名参与者执行了以下动作：(a) 抓取物体；(b) 在抓取任务中，将感知到的物体大小与手指孔径配置相匹配。错觉仅在无预览和300毫秒预览持续时间内影响抓取孔径大小，而在所有预览条件下匹配孔径均受到影响。这些结果表明，预览持续时间会影响大小错觉进而影响抓取表现，并且根据预览持续时间，受试者会采用不同的视觉运动过程。
