Document Detail


Pre-stimulus beta oscillations within left posterior sylvian regions impact auditory temporal order judgment accuracy.
MedLine Citation:
PMID:  21056064     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
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.
Authors:
Fosco Bernasconi; Aurelie L Manuel; Micah M Murray; Lucas Spierer
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Publication Detail:
Type:  Journal Article     Date:  2010-11-03
Journal Detail:
Title:  International journal of psychophysiology : official journal of the International Organization of Psychophysiology     Volume:  79     ISSN:  1872-7697     ISO Abbreviation:  Int J Psychophysiol     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-02-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8406214     Medline TA:  Int J Psychophysiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  244-8     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier B.V. All rights reserved.
Affiliation:
Neuropsychology and Neurorehabilitation Service, Department of Clinical Neurosciences, Vaudois University Hospital Center and University of Lausanne, Lausanne, Switzerland; Community Psychiatry Service, Vaudois University Hospital Center and University of Lausanne, Lausanne, Switzerland.
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