Cross-modal selective attention to visual and auditory stimuli modulates endogenous ERP components

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	Cross-modal selective attention to visual and auditory stimuli modulates endogenous ERP components
	Luo, YJ; Wei, JH; Y. J. Luo
摘要	In two experiments event-related potentials (ERPs) to visual and auditory stimuli were measured in 12 healthy subjects. A cross-modal and delayed response paradigm was used that allows ERPs to be obtained separately to attended and unattended stimuli under conditions in which unattended stimuli are less likely to be covertly or randomly attended. The results showed: (1) N1 enhancement with attention for standard stimuli in auditory and visual modalities and for deviant stimuli in the visual modality; (2) The onset time and scalp distribution of both the N1 for attend condition and Nd1 were similar regardless of standard or deviant stimuli in the auditory and visual modality; the onset time of Nd1 elicited by auditory and visual deviant stimuli was earlier than that of the unattended NI, and their scalp distributions were different; and (3) The Nd1 components elicited by auditory and visual deviant stimuli were distributed over the respective primary sensory areas, but Nd1 components evoked by auditory and visual standard stimuli were distributed over the frontal scalp. These results suggest that the attended N1 enhancement is primarily caused by a component with endogenous origins and that the early attention effect occurs before the exogenous components. The results support the view that the cross-modal attention to deviant stimuli modulates modality-specific processing in the brain, whereas attention to standard stimuli affects modality-nonspecific or supramodal brain systems.; In two experiments event-related potentials (ERPs) to visual and auditory stimuli were measured in 12 healthy subjects. A cross-modal and delayed response paradigm was used that allows ERPs to be obtained separately to attended and unattended stimuli under conditions in which unattended stimuli are less likely to be covertly or randomly attended. The results showed: (1) N1 enhancement with attention for standard stimuli in auditory and visual modalities and for deviant stimuli in the visual modality; (2) The onset time and scalp distribution of both the N1 for attend condition and Nd1 were similar regardless of standard or deviant stimuli in the auditory and visual modality; the onset time of Nd1 elicited by auditory and visual deviant stimuli was earlier than that of the unattended NI, and their scalp distributions were different; and (3) The Nd1 components elicited by auditory and visual deviant stimuli were distributed over the respective primary sensory areas, but Nd1 components evoked by auditory and visual standard stimuli were distributed over the frontal scalp. These results suggest that the attended N1 enhancement is primarily caused by a component with endogenous origins and that the early attention effect occurs before the exogenous components. The results support the view that the cross-modal attention to deviant stimuli modulates modality-specific processing in the brain, whereas attention to standard stimuli affects modality-nonspecific or supramodal brain systems. (C) 1999 Elsevier Science B.V. All rights reserved.
关键词	event-related potential selective attention modality specific processing supramodal brain system negativity difference N1 cross-modal and delayed response paradigm
学科领域	认知神经科学
	1999-09-18
语种	英语
发表期刊	BRAIN RESEARCH
ISSN	0006-8993
卷号	842 期号:1 页码:30-38
期刊论文类型	Article
收录类别	SCI ; SSCI
WOS记录号	WOS:000082809300004
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.psych.ac.cn/handle/311026/5291
专题	中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	Y. J. Luo
作者单位	Chinese Acad Sci, Inst Psychol, Lab Higher Brain Funct, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Luo, YJ,Wei, JH,Y. J. Luo. Cross-modal selective attention to visual and auditory stimuli modulates endogenous ERP components[J]. BRAIN RESEARCH,1999,842(1):30-38.
APA	Luo, YJ,Wei, JH,&Y. J. Luo.(1999).Cross-modal selective attention to visual and auditory stimuli modulates endogenous ERP components.BRAIN RESEARCH,842(1),30-38.
MLA	Luo, YJ,et al."Cross-modal selective attention to visual and auditory stimuli modulates endogenous ERP components".BRAIN RESEARCH 842.1(1999):30-38.

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