The N18 component of the median nerve SEP is not reduced by vibration

The N18 component of the median nerve SEP is not reduced by vibration

Author Manzano, G. M. Google Scholar
Negrao, N. Google Scholar
Nobrega, JAM Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Abstract Objective: To study the interference of mechanical vibration of the palm of the hand on the median nerve short-latency SEP components.Methods: Electrically-elicited short-latency median nerve SEP were obtained before and during mechanical vibration (120 Hz) of the palm in two groups of normal individuals (6 in group I and 9 in group II). the amplitude of the different components was compared between the two conditions through non-parametric statistical tests.Results: A significant reduction in the amplitude of the N9, P13/14 and N20 components was detected, however no overall significant changes were detected for the N18 component.Conclusions: Vibration interference reduced all studied components except the N18. these findings are interpreted as supporting evidence fur the proposed association between the N18 component and the inhibitory activities elicited in the dorsal column nuclei. (C) 1998 Elsevier Science Ireland Ltd. All rights reserved.
Keywords somatosensory
evoked potentials
median nerve
subcortical components
Language English
Date 1998-09-01
Published in Evoked Potentials-electroencephalography and Clinical Neurophysiology. Clare: Elsevier Sci Ireland Ltd, v. 108, n. 5, p. 440-445, 1998.
ISSN 0168-5597 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 440-445
Access rights Closed access
Type Article
Web of Science ID WOS:000076136900003

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