Magnetic brainstem stimulation of the hypoglossal nerve in normal subjects

European Journal of Neurology : the Official Journal of the European Federation of Neurological Societies
Y L Lo, S Fook-Chong

Abstract

Electrophysiological evaluation of motor pathways to the lingual muscles is technically challenging. Previous studies utilizing transcranial magnetic stimulation (TMS) of the parieto-occipital region with a round coil reported difficulties in eliciting tongue motor responses. In this study, we utilized TMS with a double cone coil at the posterior head region to obtain tongue motor evoked potentials. Our findings suggest activation at or distal to the hypoglossal nuclear level, but proximal to the hypoglossal canal region. Our method can be usefully applied in future studies of brainstem and cranial nerve function.

References

Mar 1, 1994·Journal of Neurology, Neurosurgery, and Psychiatry·W MuellbacherC W Hess
Feb 1, 1997·Electroencephalography and Clinical Neurophysiology·B U MeyerS Röricht
Jun 6, 2002·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·A InabaH Mizusawa
Jul 26, 2002·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Y L LoP Ratnagopal

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Citations

May 8, 2007·Clinical Neurology and Neurosurgery·Y L Lo, P Ratnagopal

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