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Early cognitive components of somatosensory event-related potentials
Journal article   Peer reviewed

Early cognitive components of somatosensory event-related potentials

Richard C. Josiassen, Charles Shagass, Richard A. Roemer, Stephen Slepner and Bohdan Czartorysky
International journal of psychophysiology, v 9(2), pp 139-149
1990
DOI: https://doi.org/10.1016/0167-8760(90)90068-O
PMID: 2228748
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Selective attention Somatosensory event-related potential
Somatosensory event-related potentials (ERPs) were recorded during a selective attention task involving electrical stimuli delivered to index fingers or the left and right median nerves at the wrist. In 11 healthy, young subjects, ERPs were recorded from 6 scalp locations while they mentally counted the electrical stimuli designated as target. Sequential ERP events measured included N20 (negativity at 20 ms), P30, P45, N60, P100, N140, P180, and P400. Analysis of amplitude data indicated modifications of both early and late ERP events with selective attention. While electrical stimulation at the wrist yielded early ERP amplitudes that were larger overall and latencies that were generally shorter, the selection attention effects did not differ on the basis of site of stimulation. The early ERP selective attention effects had differing scalp topography, with the P30/P45 effect maximal over postcentral gyrus and N60 effect maximal over prerolandic gyrus. The data further elucidate the temporal features and spatial distribution of somatosensory ERP processes involved in attentional activity.

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30 citations in Web of Science
30 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Neurosciences
Physiology
Psychology
Psychology, Biological
Psychology, Experimental
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