Effects of discrepancy between imagined and perceived sounds on the N2 component of the event-related potential
Wu, Jianhui2; Mai, Xiaoqin3; Yu, Zulin4; Qin, Shaozheng5; Luo, Yue-Jia1; YUE-JIA LUO
2010-03-01
发表期刊PSYCHOPHYSIOLOGY
ISSN0048-5772
文章类型Article
卷号47期号:2页码:289-298
产权排序1
摘要Two experiments were conducted to examine whether the N2 component of the event-related potential (ERP), typically elicited in a S1-S2 matching task and considered to reflect mismatch process, can still be elicited when the S1 was imagined instead of perceived and to investigate how N2 amplitude varied with the degree of S1-S2 discrepancy. Three levels of discrepancy were defined by the degree of separation between the heard (S2) and imagined (S1) sounds. It was found that the N2 was reliably elicited when the perceived S2 differed from the imagined S1, but whether N2 amplitude increased with the degree of discrepancy depended in part on the S1-S2 discriminability (as evidenced by reaction time). Specifically, the effect of increasing discrepancy was attenuated as discriminability increased from hard to easy. These results, together with the dynamic ERP topography observed within the N2 window, suggest that the N2 effect reflects two sequential but overlapping processes: automatic mismatch and controlled detection.
关键词Discrepancy Automatic mismatch Controlled detection Auditory imagery N2 Event-related potentials
学科领域生理心理学/生物心理学
DOI10.1111/j.1469-8986.2009.00936.x
URL查看原文
收录类别SCI ; SSCI
语种英语
项目资助者This work was supported by the Ministry of Education, China, the NSF China, and the IP, CAS .
资助项目This work was supported by the Ministry of Education, China (PCSIRT, IRT0710),, the NSF China (30930031, 30900442), and the IP, CAS (O9CX042004).
WOS记录号WOS:000274389500009
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/10085
专题中国科学院心理研究所回溯数据库(1956-2010)
通讯作者YUE-JIA LUO
作者单位1.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China
2.Chinese Acad Sci, Inst Psychol, Beijing 100101, Peoples R China
3.Univ Michigan, Ctr Human Growth & Dev, Ann Arbor, MI 48109 USA
4.Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100080, Peoples R China
5.Radboud Univ Nijmegen, Donders Inst Brain Cognit & Behav, Ctr Cognit Neuroimaging, NL-6525 ED Nijmegen, Netherlands
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Wu, Jianhui,Mai, Xiaoqin,Yu, Zulin,et al. Effects of discrepancy between imagined and perceived sounds on the N2 component of the event-related potential[J]. PSYCHOPHYSIOLOGY,2010,47(2):289-298.
APA Wu, Jianhui,Mai, Xiaoqin,Yu, Zulin,Qin, Shaozheng,Luo, Yue-Jia,&YUE-JIA LUO.(2010).Effects of discrepancy between imagined and perceived sounds on the N2 component of the event-related potential.PSYCHOPHYSIOLOGY,47(2),289-298.
MLA Wu, Jianhui,et al."Effects of discrepancy between imagined and perceived sounds on the N2 component of the event-related potential".PSYCHOPHYSIOLOGY 47.2(2010):289-298.
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