Interlimb coordination during a cooperative bimanual object manipulation task
Interlimb coordination during a cooperative bimanual object manipulation task
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DOI：
10.1080/1357650x.2012.748060
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发表时间：
2013-12-01
期刊：
影响因子：
1.4
通讯作者：
Seegelke, Christian
中科院分区：
文献类型：
--
作者：
Hughes, Charmayne M. L.;Maeueler, Benjamin;Seegelke, Christian
本实验研究了在执行一个对象操作任务，需要协调使用双手的不对称性。为此，20名右手主导的参与者执行了双手物体操作任务，这要求他们伸手抓住位于桌面上的两个物体，通过水平或垂直方向的装配板上的孔将两个物体装配好，然后将物体旋转180度以产生蜂鸣音。总的来说，双手在每个运动阶段的开始时高度同步，但在结束时却不同步。在运动阶段的后期，肢体间耦合的减少主要是由优势右手的较短运动时间值驱动的。此外，左侧物体旋转的程度大于右侧物体，与板方向无关。总之，结果表明，手动不对称和角色分配不是硬连线的约束，但取决于整体任务的约束和任务的概念化的方式。
This experiment examined asymmetries in the execution of an object manipulation task that requires the coordinated use of both hands. To this end, twenty right-hand-dominant participants performed a bimanual object manipulation task, which required that they reach for and grasp two objects located on a tabletop, fit the two objects through a hole in a horizontally or vertically oriented fitting board, and then rotate the objects 180 degrees to produce a beep tone. Overall, the two hands were highly synchronized at the start, but not at end, of each movement phase. The decrease in interlimb coupling at later stages of the movement phase was primarily driven by the shorter movement time values for the dominant right hand. In addition, degree of left object rotation was greater than the right object, irrespective of board orientation. In sum, the results suggest that manual asymmetries and role assignment are not hardwired constraints, but depend on the overall task constraints and the manner in which the task is conceptualized.