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
2006-10-23
发表期刊NEUROREPORT
ISSN0959-4965
文章类型Article
卷号17期号:15页码:1643-1647
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
收录类别SCI
语种英语
WOS记录号WOS:000243756800017
引用统计
被引频次:1[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
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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.
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