Possible model for generation of P9 far-field potentials
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S Hashimoto1, J Kawamura, Y Segawa
1Department of Neurology, Tenri Hospital, Nara, Japan.
Muscle & Nerve
|January 1, 1992
Abstract:
The distribution of P9 far-field somatosensory evoked potentials, after stimulation of the median nerve with a knee reference, was examined to determine the mechanism of the generation of P9 potentials. In addition to positive potentials (P9s), we found a negative potential (N9) recorded from the chest ipsilateral to the stimulation. The simulation of the distribution of these P9/N9 potentials by an electrical circuit diagram suggested the validity of this model for generation of the P9s.