Adam Jos J, Moresi Sofie
Department of Movement Sciences, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands.
Brain Cogn. 2007 Dec;65(3):252-9. doi: 10.1016/j.bandc.2007.04.003. Epub 2007 May 30.
This research tested the response inhibition account of the hand-advantage found in the finger pre-cuing task. According to this account, the advantage of preparing two fingers on one hand (represented in one hemisphere) as opposed to preparing two fingers on two hands (represented in two hemispheres) is due, in part, to a response inhibition process that operates more efficiently within than between hemispheres. In this view, supplying extra activation to both hemispheres by moving the hands should decrease the within-hemisphere inhibition advantage. Twelve participants performed the finger pre-cuing task with static and moving hands. As predicted by the response inhibition account, the hand-advantage, present with the hands at rest, decreased with the hands moving.
本研究测试了在手指预提示任务中发现的手部优势的反应抑制解释。根据这一解释，相比于准备两只手上的两根手指（由两个半球表征），准备一只手上的两根手指（由一个半球表征）的优势部分归因于一种反应抑制过程，该过程在半球内比在半球间运行得更高效。按照这种观点，通过移动双手为两个半球提供额外激活应该会降低半球内抑制优势。12名参与者在双手静止和移动的情况下执行手指预提示任务。正如反应抑制解释所预测的那样，双手静止时存在的手部优势在双手移动时降低了。
