Fuzzy segmentation spatiotemporal patterns of cognitive potential into microstates
文献类型：期刊论文
| 作者 | Zhou, S; Wang, CM; Wei, JH; Wu, SL; Shu Zhou |
| 刊名 | BRAIN TOPOGRAPHY
 |
| 出版日期 | 1999-09-01 |
| 卷号 | 12期号:1页码:61-67 |
| 关键词 | fuzzy C-mean algorithm clustering analysis statistical parametric map (SPM) Stroop test event-related potentials (ERP) spatiotemporal pattern |
| ISSN号 | 0896-0267 |
| 文献子类 | Article |
| 英文摘要 | Fuzzy c-mean algorithm was applied to segment spatiotemporal patterns of brainwave into microstates and memberships. The optimal clustering number was estimated with both the trends of objective function and the eigenvalue number of microstates. Comparable spatial patterns may occur at different temporal moments in consideration of fuzzy index that is beyond the Limit of serial processing. Those techniques were illustrated with multichannel event-related potentials recorded from 9 subjects during Stroop test. Statistical parametric map of F value suggested that significant task (color decision and word decision) effect involve widespread cortical regions after stimulus onset 280 ms and this result supports the hypothesis that Stroop interference derives from response competition during post-perception stage. As significant stimulus (congruent stimulus and incongruent stimulus) effect only involves several separate visual regions within 100 ms after stimulus presentation, it may reflect top-down attentional regulation.; Fuzzy c-mean algorithm was applied to segment spatiotemporal patterns of brainwave into microstates and memberships. The optimal clustering number was estimated with both the trends of objective function and the eigenvalue number of microstates. Comparable spatial patterns may occur at different temporal moments in consideration of fuzzy index that is beyond the Limit of serial processing. Those techniques were illustrated with multichannel event-related potentials recorded from 9 subjects during Stroop test. Statistical parametric map of F value suggested that significant task (color decision and word decision) effect involve widespread cortical regions after stimulus onset 280 ms and this result supports the hypothesis that Stroop interference derives from response competition during post-perception stage. As significant stimulus (congruent stimulus and incongruent stimulus) effect only involves several separate visual regions within 100 ms after stimulus presentation, it may reflect top-down attentional regulation. |
| 学科主题 | 生理心理学/生物心理学 |
| 语种 | 英语 |
| WOS记录号 | WOS:000083775000006 |
| 公开日期 | 2011-08-22 |
| 源URL | [http://ir.psych.ac.cn/handle/311026/5433]  |
| 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 | Shu Zhou |
| 作者单位 | 1.Chinese Acad Sci, Inst Psychol, Brain Behav Res Ctr, Beijing 100101, Peoples R China 2.First Mil Med Univ, Nanfang Hosp, Brain Res Ctr, Guangzhou, Peoples R China 3.Beijing Normal Univ, Dept Psychol, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, S,Wang, CM,Wei, JH,et al. Fuzzy segmentation spatiotemporal patterns of cognitive potential into microstates[J]. BRAIN TOPOGRAPHY,1999,12(1):61-67. |
| APA | Zhou, S,Wang, CM,Wei, JH,Wu, SL,&Shu Zhou.(1999).Fuzzy segmentation spatiotemporal patterns of cognitive potential into microstates.BRAIN TOPOGRAPHY,12(1),61-67. |
| MLA | Zhou, S,et al."Fuzzy segmentation spatiotemporal patterns of cognitive potential into microstates".BRAIN TOPOGRAPHY 12.1(1999):61-67. |
入库方式： OAI收割
来源：心理研究所
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