Event-related potentials during preattentional processing of color stimuli

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	Event-related potentials during preattentional processing of color stimuli
	Liu, Tongran1,2 ; Shi, Jiannong1
摘要	To investigate whether visual mismatch negativity (VMMN) could be evoked in the preattentional condition, we designed an oddball task with different red color stimuli in visual modality. Electroencephalograms were recorded and VMMN and N2-P3 complex waveforms were analyzed. The results indicated that VMMN generated at occipital region with 110-180 ms peak latency, and N2b and P3a were just following VMMN with 170-300 and 400-450ms latencies, respectively. VMMN, N2b, and P3a components were all affected by the amount of deviations between the standard stimuli and deviant stimuli. This study further proved that VMMN existed under hard detection condition in color-related visual modality, and this design distinguished early sensory processing and late sensory processing successfully as well.; To investigate whether visual mismatch negativity (VMMN) could be evoked in the preattentional condition, we designed an oddball task with different red color stimuli in visual modality. Electroencephalograms were recorded and VMMN and N2-P3 complex waveforms were analyzed. The results indicated that VMMN generated at occipital region with 110-180 ms peak latency, and N2b and P3a were just following VMMN with 170-300 and 400-450ms latencies, respectively. VMMN, N2b, and P3a components were all affected by the amount of deviations between the standard stimuli and deviant stimuli. This study further proved that VMMN existed under hard detection condition in color-related visual modality, and this design distinguished early sensory processing and late sensory processing successfully as well.
关键词	event-related potentials mismatch negativity preattentional processing vision
学科领域	认知神经科学
	2008-08-06
语种	英语
发表期刊	NEUROREPORT
ISSN	0959-4965
卷号	19 期号:12 页码:1221-1225
期刊论文类型	Article
收录类别	SCI ; SSCI
WOS记录号	WOS:000258022900011
引用统计	被引频次：10[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/311026/5393
专题	中国科学院心理研究所回溯数据库(1956-2010)
作者单位	1.Chinese Acad Sci, Inst Psychol, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
第一作者单位	中国科学院心理研究所
推荐引用方式 GB/T 7714	Liu, Tongran,Shi, Jiannong. Event-related potentials during preattentional processing of color stimuli[J]. NEUROREPORT,2008,19(12):1221-1225.
APA	Liu, Tongran,&Shi, Jiannong.(2008).Event-related potentials during preattentional processing of color stimuli.NEUROREPORT,19(12),1221-1225.
MLA	Liu, Tongran,et al."Event-related potentials during preattentional processing of color stimuli".NEUROREPORT 19.12(2008):1221-1225.

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