Pre-stimulus beta oscillations within left posterior sylvian regions impact auditory temporal order judgment accuracy.

Details

Serval ID
serval:BIB_EE3364FF62DF
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Pre-stimulus beta oscillations within left posterior sylvian regions impact auditory temporal order judgment accuracy.
Journal
International Journal of Psychophysiology
Author(s)
Bernasconi F., Manuel A.L., Murray M.M., Spierer L.
ISSN
1872-7697[electronic], 0167-8760[linking]
Publication state
Published
Issued date
2011
Volume
79
Number
2
Pages
244-248
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
Both neural and behavioral responses to stimuli are influenced by the state of the brain immediately preceding their presentation, notably by pre-stimulus oscillatory activity. Using frequency analysis of high-density electroencephalogram coupled with source estimations, the present study investigated the role of pre-stimulus oscillatory activity in auditory spatial temporal order judgments (TOJ). Oscillations within the beta range (i.e. 18-23Hz) were significantly stronger before accurate than inaccurate TOJ trials. Distributed source estimations identified bilateral posterior sylvian regions as the principal contributors to pre-stimulus beta oscillations. Activity within the left posterior sylvian region was significantly stronger before accurate than inaccurate TOJ trials. We discuss our results in terms of a modulation of sensory gating mechanisms mediated by beta activity.
Pubmed
Web of science
Create date
14/12/2010 13:26
Last modification date
20/08/2019 16:15
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