Department of Human Movement Sciences, Maastricht University Medical Centre, NL-6200 MD Maastricht, The Netherlands.
Hum Mov Sci. 2010 Apr;29(2):187-99. doi: 10.1016/j.humov.2010.02.001. Epub 2010 Mar 20.
This study investigated the effects of uni- and bimanual hand movements on the efficiency of within- and between-hands response preparation in a spatial cuing task. Predictions were derived from the Grouping Model of finger preparation, inspired by insights from neurophysiology (i.e., the concepts of transcollosal facilitation and cognitive overruling of basic neural coordination patterns). Sixteen participants performed the finger cuing task with one, two, or no hand(s) moving. Reaction time results revealed that unimanual and bimanual hand movements had similar effects on within-hand preparation but differential effects on between-hands preparation. This finding demonstrates a strong dissociation between within- and across-hands finger preparation, suggesting distinct underlying mechanisms as hypothesized by the Grouping Model.
本研究旨在探讨单手和双手手部运动对空间提示任务中双手内和双手间反应准备效率的影响。预测结果源自于受神经生理学启发的手指准备分组模型（即，经胼胝体促进和基本神经协调模式的认知超越的概念）。十六名参与者单手、双手或不使用手进行手指提示任务。反应时间结果表明，单手和双手手部运动对单手内准备具有相似的影响，但对双手间准备具有不同的影响。这一发现证明了双手内和双手间手指准备之间存在强烈的分离，这与分组模型所假设的不同潜在机制相一致。
