Functional organization of the primary motor cortex characterized by event-related fMRI during movement preparation and execution
Zang, YF; Jia, FC; Weng, XC; Li, EZ; Cui, SZ; Wang, YF; Hazeltine, E; Ivry, R; Xuchu Weng
2003-02-06
发表期刊NEUROSCIENCE LETTERS
ISSN0304-3940
文章类型Article
卷号337期号:2页码:69-72
摘要Neuronal recording and neuroimaging studies have shown that the primary motor area (M1) not only participates in motor execution, but is also engaged during movement preparation. The purpose of the present study was to map the distribution of the preparation- and execution-related activity within the contralateral M1 using functional magnetic resonance imaging. Eleven subjects performed a delayed sequential finger movement task, in which a CUE signal indicated a movement sequence in advance of an imperative GO signal. The hemodynamic response related to the CUE and GO signals decreased in a linear fashion across the central sulcus, with activity greater along the lateral extent compared to the medial extent. This decrease was especially evident in the epoch following the CUE. Our data reveal a pattern of functional organization within M1 related to the preparation and execution of movement sequences.; Neuronal recording and neuroimaging studies have shown that the primary motor area (M1) not only participates in motor execution, but is also engaged during movement preparation. The purpose of the present study was to map the distribution of the preparation- and execution-related activity within the contralateral M1 using functional magnetic resonance imaging. Eleven subjects performed a delayed sequential finger movement task, in which a CUE signal indicated a movement sequence in advance of an imperative GO signal. The hemodynamic response related to the CUE and GO signals decreased in a linear fashion across the central sulcus, with activity greater along the lateral extent compared to the medial extent. This decrease was especially evident in the epoch following the CUE. Our data reveal a pattern of functional organization within M1 related to the preparation and execution of movement sequences. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
关键词primary motor cortex supplementary motor area preparation execution sequential movement functional magnetic resonance imaging event-related procedure
学科领域生理心理学/生物心理学
收录类别SCI
语种英语
WOS记录号WOS:000180756100002
引用统计
被引频次:31[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/311026/5431
专题中国科学院心理研究所回溯数据库(1956-2010)
通讯作者Xuchu Weng
作者单位1.Chinese Acad Sci, Inst Psychol, Lab Higher Brain Funct, Beijing 100101, Peoples R China
2.Peking Univ, Inst Mental Hlth, Beijing 100083, Peoples R China
3.Shougang Gen Hosp, Dept MRI, Beijing 100041, Peoples R China
4.Univ Calif Berkeley, Dept Psychol, Berkeley, CA 94720 USA
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Zang, YF,Jia, FC,Weng, XC,et al. Functional organization of the primary motor cortex characterized by event-related fMRI during movement preparation and execution[J]. NEUROSCIENCE LETTERS,2003,337(2):69-72.
APA Zang, YF.,Jia, FC.,Weng, XC.,Li, EZ.,Cui, SZ.,...&Xuchu Weng.(2003).Functional organization of the primary motor cortex characterized by event-related fMRI during movement preparation and execution.NEUROSCIENCE LETTERS,337(2),69-72.
MLA Zang, YF,et al."Functional organization of the primary motor cortex characterized by event-related fMRI during movement preparation and execution".NEUROSCIENCE LETTERS 337.2(2003):69-72.
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