Effects of perturbations on accuracy of arm movements
Effects of perturbations on accuracy of arm movements
复制标题
扰动对手臂运动准确性的影响
作者：
J. Sanes;E. Evarts
这项研究的目的是检验以下假设：扰动引起的主动运动破坏的程度取决于主动运动的大小，小运动比大运动受到的干扰更大。人类受试者在离散视觉跟踪任务中进行 3 度、10 度和 30 度的旋前或旋后手臂运动。当运动短暂停止或反向时，与大运动相比，小运动所产生的轨迹和静态位置（相对于运动大小表示）误差更大。这些发现表明，周围动觉障碍会改变运动轨迹和终点误差，小运动比大运动受到的影响更大。
This study was carried out to test the hypothesis that the magnitude of perturbation-induced disruption of active movement depends upon the size of the active movement, with small movements being more disrupted than large ones. Human subjects performed pronating or supinating arm movements of 3 degrees, 10 degrees, and 30 degrees in a discrete visual tracking task. When the movements were briefly stopped or reversed, the resultant errors in trajectory and static position (expressed relative to the movement size) were greater for small as compared to large movements. These findings demonstrate that peripheral kinesthetic disturbances modify movement trajectory and end point error, with small movements being more affected than large movements.
影响因子：
14.5
作者：
ABEND, W;BIZZI, E;MORASSO, P
通讯作者：
MORASSO, P