Pre-stimulus beta and gamma oscillatory power predicts perceived audiovisual simultaneity

	Pre-stimulus beta and gamma oscillatory power predicts perceived audiovisual simultaneity
	Yuan, Xiangyong 1,2,3; Li, Haijiang 4; Liu, Peiduo 1,2; Yuan, Hong 1,2; Huang, Xiting 1,2
刊名	INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY
	2016-09-01
通讯作者邮箱	xthuang_swu@163.com, xthuang@swu.edu.cn
卷号	107 期号:0 页码:29-36
关键词	Electroencephalogram Fast Fourier transform Audiovisual Simultaneity Beta and gamma oscillation
ISSN号	0167-8760
通讯作者	X. Huang
英文摘要	Pre-stimulus oscillation activity in the brain continuously fluctuates, but it is correlated with subsequent behavioral and perceptual performance. Here, using fast Fourier transformation of pre-stimulus electroencephalograms, we explored how oscillatory power modulates the subsequent discrimination of perceived simultaneity from non-simultaneity in the audiovisual domain. We found that the over-scalp high beta (20-28 Hz), parieto-occipital low beta (14-20 Hz), and high gamma oscillations (55-80 Hz) were significantly stronger before audition -then-vision sequence when they were judged as simultaneous rather than non-simultaneous. In contrast, a broad range of oscillations, mainly the beta and gamma bands over a great part of the scalp were significantly weaker before vision-then-audition sequences when they were judged as simultaneous versus non-simultaneous. Moreover, for auditory-leading sequence, pre-stimulus beta and gamma oscillatory power successfully predicted subjects' reports of simultaneity on a trial-by-trial basis, with stronger activity resulting in more simultaneous judgments. These results indicate that ongoing fluctuations of beta and gamma oscillations can modulate subsequent perceived audiovisual simultaneity, but with an opposing pattern for auditory- and visual-leading sequences. (C) 2016 Elsevier B.V. All rights reserved.
WOS标题词	Social Sciences ; Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Psychology, Biological ; Neurosciences ; Physiology ; Psychology ; Psychology, Experimental
研究领域[WOS]	Psychology ; Neurosciences & Neurology ; Physiology
关键词[WOS]	BAND OSCILLATIONS ; VISUAL-PERCEPTION ; SYNCHRONY ; INTEGRATION ; FLUCTUATIONS ; ATTENTION ; CORTEX ; MEMORY ; HUMANS ; PHASE
收录类别	SCI ; SSCI
语种	英语
WOS记录号	WOS:000381537300004
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/20536]
专题	心理研究所_认知与发展心理学研究室
作者单位	1.Southwest Univ, Key Lab Cognit & Personal, Minist Educ, Chongqing 400715, Peoples R China 2.Southwest Univ, Fac Psychol, Chongqing 400715, Peoples R China 3.Chinese Acad Sci, Inst Psychol, Beijing 100101, Peoples R China 4.Shanghai Normal Univ, Dept Psychol, Shanghai 200234, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Xiangyong,Li, Haijiang,Liu, Peiduo,et al. Pre-stimulus beta and gamma oscillatory power predicts perceived audiovisual simultaneity[J]. INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY,2016,107(0):29-36.
APA	Yuan, Xiangyong,Li, Haijiang,Liu, Peiduo,Yuan, Hong,&Huang, Xiting.(2016).Pre-stimulus beta and gamma oscillatory power predicts perceived audiovisual simultaneity.INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY,107(0),29-36.
MLA	Yuan, Xiangyong,et al."Pre-stimulus beta and gamma oscillatory power predicts perceived audiovisual simultaneity".INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY 107.0(2016):29-36.