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

被引：29

作者：

Bernasconi, Fosco ^{[1
,2
,3
]}

Manuel, Aurelie L. ^{[1
,2
,3
]}

Murray, Micah M. ^{[1
,2
,4
,5
,6
]}

Spierer, Lucas ^{[1
,2
]}

机构：

[1] Vaudois Univ Hosp Ctr, Dept Clin Neurosci, Neuropsychol & Neurorehabil Serv, Lausanne, Switzerland

[2] Univ Lausanne, Lausanne, Switzerland

[3] Vaudois Univ Hosp Ctr, Community Psychiat Serv, Lausanne, Switzerland

[4] Ctr Biomed Imaging, Lausanne, Switzerland

[5] Vaudois Univ Hosp Ctr, Dept Radiol, Lausanne, Switzerland

[6] Vanderbilt Univ, Med Ctr, Dept Hearing & Speech Sci, Nashville, TN USA

来源：

INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY | 2011年 / 79卷 / 02期

基金：

瑞士国家科学基金会;

关键词：

EEG; Oscillation; Temporal order judgment; Auditory; Temporal lobe; HUMAN BRAIN; BAND OSCILLATIONS; ATTENTION; MECHANISMS; SCHIZOPHRENIA; LOCALIZATION; POTENTIALS; COMPONENT; CORTEX; P50;

D O I：

10.1016/j.ijpsycho.2010.10.017

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

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. 18-23 Hz) 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. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：244 / 248

页数：5

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