Brain dynamic mechanisms of scale effect in visual spatial attention

PSYCH OpenIR > 中国科学院心理研究所回溯数据库(1956-2010)

	Brain dynamic mechanisms of scale effect in visual spatial attention
	Song, Wei-qun ; Li, Xinying; Luo, Yue-Jia; Du, Bo-qi ; Ji, Xun-ming ; Y. J. Luo
摘要	The dynamic mechanisms of the early event-related potential scale effect of different attentive regions in the brain was studied. The paradigm of this experiment is the precue-target visual search paradigm by event-related potential technique. The results showed that the reaction time was shortened with the reduction of cue scale, a cue to how big the search area would be, and fixed target stimulus, while the amplitudes of PI and NI components of event-related potentials increased. These results not only provided the electrophysiological evidences that supported the zoom-lens theory, but also indicated that the zoom-lens effect happened at the early selected attention period. The results also showed that there existed two kinds of separation in the P2 effect.; The dynamic mechanisms of the early event-related potential scale effect of different attentive regions in the brain was studied. The paradigm of this experiment is the precue-target visual search paradigm by event-related potential technique. The results showed that the reaction time was shortened with the reduction of cue scale, a cue to how big the search area would be, and fixed target stimulus, while the amplitudes of PI and NI components of event-related potentials increased. These results not only provided the electrophysiological evidences that supported the zoom-lens theory, but also indicated that the zoom-lens effect happened at the early selected attention period. The results also showed that there existed two kinds of separation in the P2 effect.
关键词	event-related potential scale effect visual spatial attention
学科领域	认知神经科学
	2006-10-23
语种	英语
发表期刊	NEUROREPORT
ISSN	0959-4965
卷号	17 期号:15 页码:1643-1647
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000243756800017
引用统计	被引频次：5[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/311026/5229
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	1.Capital Univ Med Sci, Xuanwu Hosp, Dept Rehabil, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing, Peoples R China 3.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Song, Wei-qun,Li, Xinying,Luo, Yue-Jia,et al. Brain dynamic mechanisms of scale effect in visual spatial attention[J]. NEUROREPORT,2006,17(15):1643-1647.
APA	Song, Wei-qun,Li, Xinying,Luo, Yue-Jia,Du, Bo-qi,Ji, Xun-ming,&Y. J. Luo.(2006).Brain dynamic mechanisms of scale effect in visual spatial attention.NEUROREPORT,17(15),1643-1647.
MLA	Song, Wei-qun,et al."Brain dynamic mechanisms of scale effect in visual spatial attention".NEUROREPORT 17.15(2006):1643-1647.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
luo-2006- Brain ism（205KB）			开放获取	--	浏览下载