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[摘要]：Direct current stimulation (DCS) has been known as a noninvasive method for modulating neural activity. We estimated the effects of noninvasive cutaneous DCS applied to the cervical region on corticospinal excitability and segmental sensorimotor excitability. The motor-evoked potential amplitudes and the parameters of the Hoffmann reflex were measured before, immediately after, 1 h after, and 2 h after DCS. In this study, we found that noninvasive cervical application of DCS could increase the motor-evoked potential amplitudes which reflected corticospinal tract excitability. This effect of DCS remained for 2 h after stimulation had ceased. These findings suggest DCS might be a noninvasive and effective tool for corticospinal tract excitation. NeuroReport 22:819-823 (C) 2011 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins. |
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