Source localization during tactile stimulation and imagery of the upper limbs

Miroshnikov Andrei, L. Yakovlev, Artemiy Berkmush-Antipova, N. Syrov, Alexander Kaplan, N. Shusharina
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Abstract

In this study we present the results of mu range event-related desynchronization/synchronization (ERD/S) source estimations. ERD was provoked by tactile stimulation (TS) or tactile imagery (TI), the electroencephalography (EEG) data were acquired with the high-density EEG (hdEEG), and the inverse problem was solved by using the sLORETA method. The results of source estimation have shown that both TS and TI lead to significant mu range ERD with its sources localized in sensorimotor cortex, which points to that tactile imagery shares the neuronal substrate of tactile perception.
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上肢触觉刺激与想像时的源定位
在这项研究中,我们提出了mu范围事件相关非同步/同步(ERD/S)源估计的结果。采用触觉刺激(TS)或触觉成像(TI)诱发ERD,采用高密度脑电图(hdEEG)获取脑电数据,采用sLORETA方法求解反演问题。来源估计结果表明,TS和TI均可导致显著的mu范围ERD,其来源均位于感觉运动皮层,这表明触觉图像共享触觉感知的神经元基质。
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