Mismatch negativity of ERP in cross-modal attention

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	Mismatch negativity of ERP in cross-modal attention
	Luo, YJ; Wei, JH
摘要	Event-related potentials were measured in 12 healthy youth subjects aged 19-22 using the paradigm ''cross-modal and delayed response'' which is able to improve unattended purity and to avoid the effect of task target on the deviant components of ERP. The experiment included two conditions: (i) Attend visual modality, ignore auditory modality; (ii) attend auditory modality, ignore visual modality. The stimuli under the two conditions were the same. The difference wave was obtained by subtracting ERPs of the standard stimuli from that of the deviant stimuli. The present results showed that mismatch negativity (MMN), N2b and P3 components can be produced in the auditory and visual modalities under attention condition: However, only MMN was observed in the two modalities under inattention condition. Auditory and visual MMN have some features in common: their largest MMN wave peaks were distributed respectively over their primary sensory projection areas of the scalp under attention condition, but over fronto-central scalp under inattention condition. There was no significant difference between the amplitudes of visual and auditory MMN. Their amplitudes and the scalp distribution were unaffected by attention, thus suggesting that MMN amplitude is an important index reflecting automatic processing in the brain. However, the latency of the auditory and visual MMN were affected by attention, showing that MMN not only reflects automatic processing but also probably relates to control processing.
关键词	event-related potentials (ERPs) mismatch negativity (MMN) selective attention cross-modal and delayed response
	1997-12-01
语种	英语
发表期刊	SCIENCE IN CHINA SERIES C-LIFE SCIENCES
ISSN	1006-9305
卷号	40 期号:6 页码:604-612
期刊论文类型	Article
收录类别	SCI
WOS关键词	EVENT-RELATED POTENTIALS ; SELECTIVE ATTENTION ; DIVIDED ATTENTION
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
WOS研究方向	Life Sciences & Biomedicine - Other Topics
WOS类目	Biology
WOS记录号	WOS:A1997YK88300006
引用统计	被引频次：6[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/311026/26002
专题	中国科学院心理研究所回溯数据库(1956-2010)
推荐引用方式 GB/T 7714	Luo, YJ,Wei, JH. Mismatch negativity of ERP in cross-modal attention[J]. SCIENCE IN CHINA SERIES C-LIFE SCIENCES,1997,40(6):604-612.
APA	Luo, YJ,&Wei, JH.(1997).Mismatch negativity of ERP in cross-modal attention.SCIENCE IN CHINA SERIES C-LIFE SCIENCES,40(6),604-612.
MLA	Luo, YJ,et al."Mismatch negativity of ERP in cross-modal attention".SCIENCE IN CHINA SERIES C-LIFE SCIENCES 40.6(1997):604-612.