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What is the origin of the premotor potential recorded from the second lumbrical?
Author(s) -
Takahashi Nobushige,
Takahashi Osamu,
Ogawa Shinji,
Takahashi Morimasa
Publication year - 2006
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.20606
Subject(s) - sensory system , compound muscle action potential , anatomy , neuroscience , stimulation , electrophysiology , sensory nerve , medicine , psychology
When recording with a palm electrode, a premotor potential (PMP) precedes the compound muscle action potential that is evoked from the second lumbrical muscle following median nerve stimulation. The origin of this PMP has been uncertain. We demonstrate that median sensory nerve action potentials (SNAPs) can be recorded orthodromically with the palm electrode and conclude that the origin of the PMP is a median SNAP arising from antidromically activated digital sensory branches. Muscle Nerve, 2006