评“视觉布局调节菲茨定律：第一和最后位置的重要性”。

Comment on "Visual layout modulates Fitts's law: the importance of first and last positions".

机构信息

Department of Mechanical Engineering, University of Melbourne, PO Box 89, Halls Gap, Victoria, 3381, Australia.

出版信息

Psychon Bull Rev. 2012 Feb;19(1):146-50. doi: 10.3758/s13423-011-0183-9.

PMID:22095451

Abstract

Pratt, Adam, and Fischer (2007) investigated the effect of surrounding targets on the time it took to move to an individual target and found that the movement time to a central target was above the Fitts's law line related to the first and last targets. They explained their results in terms of a "visuomotor hypothesis." Here, an alternative explanation is given in terms of a previously validated model of the "available target width" that is determined by the size of the target and the width of the finger pad that is being used to hit the target.

摘要

普拉特、亚当和费舍尔（2007 年）研究了周围目标对移动到单个目标所需时间的影响，发现移动到中央目标的时间高于与第一和最后一个目标相关的菲茨定律线。他们根据“视觉运动假说”解释了他们的结果。在这里，根据之前经过验证的“可用目标宽度”模型，给出了另一种解释，该模型由目标的大小和用于击打目标的手指垫的宽度决定。