Early scale effect and hemisphere superiority on the visual spatial attention: From the electrophysiological evidence of ERP
Song, WQ; Gao, Y; Luo, YJ; Luo Yuejia
2004-10-01
发表期刊PROGRESS IN NATURAL SCIENCE
ISSN1002-0071
文章类型Article
卷号14期号:10页码:875-879
摘要The visual attention mechanism in the brain was studied among 16 young subjects through the precue-target visual search paradigm using the event-related potentials ( ERPs) technique, with the attentive ranges cued with different scales of Chinese words. The results showed that the response time was shortened as the cue scale was reduced, while the amplitudes of the P1 and N1 components of the ERPs increased. These results not only provided the electrophysiological evidence supporting the spotlight theory, but also indicated that the spotlight effect occurred during the early period of the selected attention. Two kinds of separation in the P2 effect were observed. One separation was between the P1 effect and P2 effect, which meant that additional computation was needed when the spatial scale of attention was enlarged; the other was between the left and right hemisphere of the P2 effect, which indicates that the attentive processing of the cue range mainly occurred in the left hemisphere.; The visual attention mechanism in the brain was studied among 16 young subjects through the precue-target visual search paradigm using the event-related potentials ( ERPs) technique, with the attentive ranges cued with different scales of Chinese words. The results showed that the response time was shortened as the cue scale was reduced, while the amplitudes of the P1 and N1 components of the ERPs increased. These results not only provided the electrophysiological evidence supporting the spotlight theory, but also indicated that the spotlight effect occurred during the early period of the selected attention. Two kinds of separation in the P2 effect were observed. One separation was between the P1 effect and P2 effect, which meant that additional computation was needed when the spatial scale of attention was enlarged; the other was between the left and right hemisphere of the P2 effect, which indicates that the attentive processing of the cue range mainly occurred in the left hemisphere.
关键词visual spatial attention cue scale spotlight effect hemisphere superiority event-related potential (ERP)
学科领域认知神经科学
收录类别SCI
语种英语
WOS记录号WOS:000224688400006
引用统计
被引频次:3[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/311026/5349
专题中国科学院心理研究所回溯数据库(1956-2010)
通讯作者Luo Yuejia
作者单位1.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China
2.SW China Normal Univ, Sch Psychol, Chongqing 400715, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Song, WQ,Gao, Y,Luo, YJ,et al. Early scale effect and hemisphere superiority on the visual spatial attention: From the electrophysiological evidence of ERP[J]. PROGRESS IN NATURAL SCIENCE,2004,14(10):875-879.
APA Song, WQ,Gao, Y,Luo, YJ,&Luo Yuejia.(2004).Early scale effect and hemisphere superiority on the visual spatial attention: From the electrophysiological evidence of ERP.PROGRESS IN NATURAL SCIENCE,14(10),875-879.
MLA Song, WQ,et al."Early scale effect and hemisphere superiority on the visual spatial attention: From the electrophysiological evidence of ERP".PROGRESS IN NATURAL SCIENCE 14.10(2004):875-879.
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