Role of voluntary drive in encoding an elementary motor memory
Role of voluntary drive in encoding an elementary motor memory
复制标题
DOI：
10.1152/jn.00143.2004
复制
发表时间：
2005-02-01
影响因子：
2.5
通讯作者：
Cohen, LG
中科院分区：
文献类型：
--
作者：
Kaelin-Lang, A;Sawaki, L;Cohen, LG
运动训练包括重复的拇指运动，导致初级运动皮层中的运动记忆编码。目前尚不清楚源于训练动作的本体感受输入是否足以产生这种效果。在这项研究中，我们比较了由自愿（主动）和被动引发（被动）运动组成的训练诱导这种形式的可塑性的能力。主动训练导致成功的编码伴随着特征性的变化corticomotor兴奋性，而被动训练没有。这些结果支持自主运动驱动在初级运动皮层编码运动记忆中的关键作用。
Motor training consisting of repetitive thumb movements results in encoding of motor memories in the primary motor cortex. It is not known if proprioceptive input originating in the training movements is sufficient to produce this effect. In this study, we compared the ability of training consisting of voluntary ( active) and passively-elicited ( passive) movements to induce this form of plasticity. Active training led to successful encoding accompanied by characteristic changes in corticomotor excitability, while passive training did not. These results support a pivotal role for voluntary motor drive in coding motor memories in the primary motor cortex.