When two hands are better than one: reduced timing variability during bimanual movements.
When two hands are better than one: reduced timing variability during bimanual movements.
复制标题
当两只手比一只手更好时：减少双手运动过程中的时间变化。
DOI：
10.1037//0096-1523.22.2.278
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Ivry,RB
中科院分区：
文献类型：
--
作者：
Helmuth,LL;Ivry,RB
手内的变异性减少了重复敲击任务时，个人用2只手敲击相比，单手敲击。当将总变异性分解为中枢定时和外周执行组件时（AM Wing和AB Kristofferson;见记录1974-10323-001），双手优势归因于中枢变异性降低。改进的一致性不需要运动涉及同源肌肉。然而，与相位耦合不同，当两个动作由不同的个体产生时，没有发现双手优势，而是要求两个动作由一个个体产生。有人提出，单独的定时机制与每个效应器相关联。在双手动作期间，来自这些定时机制的输出在动作执行之前被整合，并且正是这种整合导致双手优势。（PsycINFO数据库记录（c）2016阿帕，保留所有权利）
Within-hand variability was reduced on a repetitive tapping task when individuals tapped with 2 hands in comparison to single-handed tapping. When the total variability was decomposed into central timing and peripheral implementation components (AM Wing and AB Kristofferson; see record 1974-10323-001), the bimanual advantage was attributed to decreased central variability. The improved consistency does not require that the movements involve homologous muscles. However, unlike phase coupling, the bimanual advantage is not found when the 2 movements are produced by different individuals, but rather requires that the 2 movements be produced by 1 individual. It is proposed that separate timing mechanisms are associated with each effector. During bimanual movements, the outputs from these timing mechanisms are integrated prior to movement execution, and it is this integration that results in the bimanual advantage.(PsycINFO Database Record (c) 2016 APA, all rights reserved)