期刊
NEUROREPORT
卷 12, 期 1, 页码 1-5出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00001756-200101220-00008
关键词
central sulcus; lip; magnetoencephalography; primary somatosensory cortex; somatosensory evoked potential; trigeminal nerve
The initial cortical response of the trigeminal somatosensory evoked magnetic fields was measured for electrical stimulation of the lower lip in eleven subjects. The stimulus frequency was 0.7 HI and stimulus intensity was nine times sensory threshold. The initial contralateral response was detected in 20 hemispheres at a latency of 14.6 +/- 1.3 ms and was named N15m. The equivalent current dipole of N15m was localized at the posterior bank of the central sulcus with anterior-superior orientation, and inferior to the dipole of N20m for median nerve stimulation. NeuroReport 12:1-5 (C) 2001 Lippincott Williams & Wilkins.
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