Motor synergies and the equilibrium-point hypothesis.
Motor synergies and the equilibrium-point hypothesis.
复制标题
DOI：
10.1123/mcj.14.3.294
复制
发表时间：
2010-07
期刊：
影响因子：
1.1
通讯作者：
Latash ML
中科院分区：
文献类型：
--
作者：
Latash ML
本文提供了一种将运动控制和协调领域的三个最新进展结合起来的方法：（1）基于运动丰度原理引入了协同的概念； (2) 不受控流形假设被描述为提供一个计算框架来识别和量化协同效应； (3)针对单肌肉、单关节和多关节系统描述了平衡点假设。将这些概念合并成一个单一的连贯方案需要关注控制变量而不是性能变量。最小最终作用原则被制定为参照配置假设中的指导原则。电机动作与控制器设置两种类型的变量相关联，即最终定义平均性能模式的变量和定义相关协同作用的变量。对建议方案的预测进行了回顾，如预期协同调整、快速行动而不改变协同效应、非典型协同效应以及与实践协同效应发生变化等现象。简要回顾了一些模型。
The article offers a way to unite three recent developments in the field of motor control and coordination: (1) The notion of synergies is introduced based on the principle of motor abundance; (2) The uncontrolled manifold hypothesis is described as offering a computational framework to identify and quantify synergies; and (3) The equilibrium-point hypothesis is described for a single muscle, single joint, and multi-joint systems. Merging these concepts into a single coherent scheme requires focusing on control variables rather than performance variables. The principle of minimal final action is formulated as the guiding principle within the referent configuration hypothesis. Motor actions are associated with setting two types of variables by a controller, those that ultimately define average performance patterns and those that define associated synergies. Predictions of the suggested scheme are reviewed, such as the phenomenon of anticipatory synergy adjustments, quick actions without changes in synergies, atypical synergies, and changes in synergies with practice. A few models are briefly reviewed.