Brain dynamic mechanisms of scale effect in visual spatial attention

CORC > 心理研究所 > 中国科学院心理研究所 > 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
刊名	NEUROREPORT
	2006-10-23
卷号	17 期号:15 页码:1643-1647
关键词	event-related potential scale effect visual spatial attention
ISSN号	0959-4965
文献子类	Article
英文摘要	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.
学科主题	认知神经科学
语种	英语
WOS记录号	WOS:000243756800017
公开日期	2011-08-22
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/5230]
专题	心理研究所_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.