Facilitatory effect of tonic voluntary contraction on responses to motor cortex stimulation
作者： Yoshikazu Ugawa , Yasuo Terao , Ritsuko Hanajima , Katsuyuki Sakai , Ichiro Kanazawa
DOI: 10.1016/0924-980X(95)00214-6
关键词: Electrophysiology 、 Neuroscience 、 Muscle contraction 、 Stimulation 、 Electromyography 、 Medicine 、 Tonic (physiology) 、 Motor cortex 、 Contraction (grammar) 、 Motor neuron
摘要: To investigate the mechanisms underlying facilitation of responses to motor cortical stimulation produced by tonic voluntary contraction, we studied facilitatory effects in 7 normal volunteers during different levels muscle contraction. Responses were similarly facilitated contraction with 3 forms stimulation: magnetic cortical, electrical and foramen magnum level stimulation. At a high however, only markedly facilitated. We conclude that induced occurs mainly at spinal level, but excitability changes also contribute enlargement case
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