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
收藏
页码：244 / 248
页数：5
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