Selective inhibition of movement
Selective inhibition of movement
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DOI：
10.1152/jn.01284.2006
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发表时间：
2007-03-01
影响因子：
2.5
通讯作者：
Byblow, Winston D.
中科院分区：
文献类型：
--
作者：
Coxon, James P.;Stinear, Cathy M.;Byblow, Winston D.
选择性抑制运动。J Neurophysiol 97：2480-2489，2007. 2007年1月24日首次出版; doi：10.1152/jn. 01284.2006.在意志抑制的研究中，成功的任务执行通常需要阻止所有的运动。实际上，在存在全局运动输出的情况下，运动被选择性地阻止。这项研究的目的是调查的能力，以防止一个动作，同时执行另一个，被称为选择性抑制。在两个实验中，参与者用他们的食指和中指（单手）或他们的左手和右手食指（双手）释放开关，以阻止两个移动的指标在一个固定的目标（围棋试验）。当一个或两个指示器在到达目标之前自动停止时，停止试验发生，这表明需要防止准备好的运动。停止所有和选择性停止试验随机穿插在更频繁发生的围棋试验。我们发现，选择性抑制比非选择性抑制更难执行，单手和双手的任务背景。在选择性抑制试验中，两个实验中反应指的抬起时间都被延迟，
Selective inhibition of movement. J Neurophysiol 97: 2480-2489, 2007. First published January 24, 2007; doi: 10.1152/jn. 01284.2006. In studies of volitional inhibition, successful task performance usually requires the prevention of all movement. In reality, movements are selectively prevented in the presence of global motor output. The aim of this study was to investigate the ability to prevent one movement while concurrently executing another, referred to as selective inhibition. In two experiments, participants released switches with either their index and middle fingers (unimanual) or their left and right index fingers ( bimanual) to stop two moving indicators at a fixed target ( Go trials). Stop trials occurred when either one or both indicators automatically stopped before reaching the target, signaling that prevention of the prepared movement was required. Stop All and selective Stop trials were randomly interspersed among more frequently occurring Go trials. We found that selective inhibition is harder to perform than nonselective inhibition, for both unimanual and bimanual task contexts. During selective inhibition trials, lift time of the responding digit was delayed in both experiments by