Transcranial direct current stimulation (tDCS) to the supplementary motor area (SMA) influences performance on motor tasks
Transcranial direct current stimulation (tDCS) to the supplementary motor area (SMA) influences performance on motor tasks
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DOI：
10.1007/s00221-016-4848-5
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发表时间：
2017-03-01
影响因子：
2
通讯作者：
Schneider, H. D.
中科院分区：
文献类型：
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作者：
Hupfeld, K. E.;Ketcham, C. J.;Schneider, H. D.
辅助运动区(SMA)被认为高度参与简单和复杂运动任务的计划和执行。本研究旨在研究SMA在计划完成反应时间、平衡和钉板任务所需动作中的作用，使用阳极经颅直流电刺激(Tdcs)，在两个电极之间传递弱电流，以调节神经元活动。20名健康成人在平衡状态下接受tDCs(实验条件)或不接受tDCs(对照条件)，持续3天。在服用tdcs期间，参与者完成平衡任务的速度明显快于对照组。在tdcs后，受试者的简单和选择反应时显著提高。这些结果表明，SMA高度参与计划和执行精细和粗略运动技能任务，而tDCS是提高SMA相关任务绩效的一种有效方式。这些发现可能是可推广的，因此表明了未来使用tdcs作为治疗工具的干预措施的意义。
The supplementary motor area (SMA) is believed to be highly involved in the planning and execution of both simple and complex motor tasks. This study aimed to examine the role of the SMA in planning the movements required to complete reaction time, balance, and pegboard tasks using anodal transcranial direct current stimulation (tDCS), which passes a weak electrical current between two electrodes, in order to modulate neuronal activity. Twenty healthy adults were counterbalanced to receive either tDCS (experimental condition) or no tDCS (control condition) for 3 days. During administration of tDCS, participants performed a balance task significantly faster than controls. After tDCS, subjects significantly improved their simple and choice reaction time. These results demonstrate that the SMA is highly involved in planning and executing fine and gross motor skill tasks and that tDCS is an effective modality for increasing SMA-related performance on these tasks. The findings may be generalizable and therefore indicate implications for future interventions using tDCS as a therapeutic tool.