Orienting and Focusing in Voluntary and Involuntary Visuospatial Attention Conditions An Event-Related Potential Study

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	Orienting and Focusing in Voluntary and Involuntary Visuospatial Attention Conditions An Event-Related Potential Study
	Wang, Yan3 ; Wu, Jianhui3 ; Fu, Shimin 2; Luo, Yuejia1
刊名	JOURNAL OF PSYCHOPHYSIOLOGY
	2010
卷号	24 期号:3 页码:198-209
关键词	attention orienting focusing voluntary involuntary ERP
ISSN号	0269-8803
英文摘要	In the present study, we used event-related potentials (ERPs) and behavioral measurements in a peripherally cued line-orientation discrimination task to investigate the underlying mechanisms of orienting and focusing in voluntary and involuntary attention conditions. Informative peripheral cue (75% valid) with long stimulus onset asynchrony (SOA) was used in the voluntary attention condition; uninformative peripheral cue (50% valid) with short SOA was used in the involuntary attention condition. Both orienting and focusing were affected by attention type. Results for attention orienting in the voluntary attention condition confirmed the "sensory gain control theory," as attention enhanced the amplitude of the early ERP components, P1 and N1, without latency changes. In the involuntary attention condition, compared with invalid trials, targets in the valid trials elicited larger and later contralateral P1 components, and smaller and later contralateral N1 components. Furthermore, but only in the voluntary attention condition, targets in the valid trials elicited larger N2 and P3 components than in the invalid trials. Attention focusing in the involuntary attention condition resulted in larger P1 components elicited by targets in small-cue trials compared to large-cue trials, whereas in the voluntary attention condition, larger P1 components were elicited by targets in large-cue trials than in small-cue trials. There was no interaction between orienting and focusing. These results suggest that orienting and focusing of visual-spatial attention are deployed independently regardless of attention type. In addition, the present results provide evidence of dissociation between voluntary and involuntary attention during the same task.
收录类别	SCI ; SSCI
语种	英语
WOS记录号	WOS:000285188100005
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/13766]
专题	心理研究所_中国科学院心理研究所回溯数据库(1956-2010)
作者单位	1.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing, Peoples R China 2.George Mason Univ, ARCH Lab, Fairfax, VA 22030 USA 3.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yan,Wu, Jianhui,Fu, Shimin,et al. Orienting and Focusing in Voluntary and Involuntary Visuospatial Attention Conditions An Event-Related Potential Study[J]. JOURNAL OF PSYCHOPHYSIOLOGY,2010,24(3):198-209.
APA	Wang, Yan,Wu, Jianhui,Fu, Shimin,&Luo, Yuejia.(2010).Orienting and Focusing in Voluntary and Involuntary Visuospatial Attention Conditions An Event-Related Potential Study.JOURNAL OF PSYCHOPHYSIOLOGY,24(3),198-209.
MLA	Wang, Yan,et al."Orienting and Focusing in Voluntary and Involuntary Visuospatial Attention Conditions An Event-Related Potential Study".JOURNAL OF PSYCHOPHYSIOLOGY 24.3(2010):198-209.