Proprioceptive control of multijoint movement: bimanual circle drawing.
Proprioceptive control of multijoint movement: bimanual circle drawing.
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多关节运动的本体感觉控制：双手画圆。
DOI：
10.1007/s002210050788
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发表时间：
1999
影响因子：
2
通讯作者：
Dounskaia,NV
中科院分区：
文献类型：
--
作者：
Verschueren,SM;Swinnen,SP;Cordo,PJ;Dounskaia,NV
本体感觉是中枢神经系统（CNS）对单关节和多关节运动的空间和时间特性的控制。本研究探讨了本体感觉在控制双侧肢体周期性运动中的作用。正常人被蒙上眼睛，用双臂（直径16 cm，1 /s）在两个数字化平板上同时对称地画圆。在选定的试验中，振动（60-70 Hz）施加到二头肌和/或优势臂的前三角肌的肌腱，以扭曲来自肌梭传入的本体感受信息。本研究的目的之一是确定肌腱振动是否影响振动的，占主导地位的手臂和非振动的，非主导的手臂画圆的空间特性。第二个目标是确定振动的影响，在两个手臂之间的时间耦合画圆。结果表明，肌腱振动影响的振动臂画的圆圈的空间特性的方式类似于以前发现的单边画圆。在双手画圈，振动只有一个最小的影响，对非振动的空间特性，非优势arm. Temporal interlimb耦合臂之间的相对相位进行量化。无肌腱振动时，优势臂超前于非优势臂，优势臂振动使平均相位超前增大。在第一对照实验中，非主导臂的振动减小主导臂的相位超前，或者甚至将其反转为非主导臂相位超前。在第二个对照实验中，受试者进行双手画圆任务的视觉只有振动的手臂，在这种情况下，有没有空间扭曲的振动臂画的圆圈，但两个手臂之间的相位关系仍然转移，如果视觉完全不可用。得出的结论是，在双手运动，如这些，运动的空间和时间特性是独立控制的。而手的运动的空间特性似乎是单方面控制，interlimb耦合的时间特性似乎是由来自两个肢体的本体感受信息控制，可能是由本体感受触发机制。
Proprioception is used by the central nervous system (CNS) in the control of the spatial and temporal characteristics of single joint and multiple joint movement. The present study addressed the role of proprioception in the control of bilateral cyclical movements of the limbs. Normal blindfolded human subjects drew circles simultaneously and symmetrically with the two arms (16 cm diameter, 1 /s) upon two digitizing tablets. In selected trials, vibration (60–70 Hz) was applied to the tendon of the biceps and/or anterior deltoid muscles of the dominant arm to distort the proprioceptive information from muscle spindle afferents. One goal of this study was to identify whether tendon vibration influenced the spatial characteristics of circles drawn by the vibrated, dominant arm and the non-vibrated, non-dominant arm. A second goal was to determine the effect of vibration on the temporal coupling between the two arms during circle drawing. The results revealed that tendon vibration affected the spatial characteristics of circles drawn by the vibrated arm in a manner similar to that previously found for unilateral circle drawing. During bimanual circle drawing, vibration had only a minimal effect on the spatial characteristics of the non-vibrated, non-dominant arm. Temporal interlimb coupling was quantified by the relative phasing between the arms. Without tendon vibration, the dominant arm led the non-dominant arm. Vibration of the dominant arm increased the average phase lead. In a first control experiment, vibration of the non-dominant arm decreased the phase lead of the dominant arm, or even reversed it to a non-dominant arm phase lead. In a second control experiment, the subjects performed the bimanual circle-drawing task with vision of only the vibrated arm, in which case there was no spatial distortion of the circles drawn by the vibrated arm, but the phase relation between the two arms was still shifted as if vision were completely unavailable. It was concluded that, in bimanual movements such as these, the spatial and temporal characteristics of movement are controlled independently. Whereas the spatial characteristics of hand movement seem to be controlled unilaterally, the temporal characteristics of interlimb coupling appear to be controlled by proprioceptive information from both limbs, possibly by a proprioceptive triggering mechanism.