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Effects of different sensory inputs on the median‐derived somatosensory evoked potential
Author(s) -
Reisin Ricardo C.,
Goodin Douglas S.,
Aminoff Michael J.,
Mantle Mary M.
Publication year - 1989
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.880120712
Subject(s) - somatosensory evoked potential , sensory system , somatosensory system , physical medicine and rehabilitation , audiology , medicine , neuroscience , psychology
We studied the effect of a variety of “interfering” stimuli on the median‐derived somatosensory evoked potentials recorded over Erb's point, cervical spine, and scalp. We found that the amplitude of N20 and P27 recorded over the scalp was attenuated by active movement, vibration, and tactile stimulation of the ipsilateral hand but not by passive movement. Cervical and peripheral responses were unaffected. The pathophysiologic basic and clinical significance of these findings are discussed.