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学科主题: 精神卫生
题名:
Functional organization of the primary motor cortex characterized by event-related fMRI during movement preparation and execution
作者: Zang, YF; Jia, FC; Weng, XC; Li, EZ; Cui, SZ; Wang, YF; Hazeltine, E; Ivry, R
关键词: primary motor cortex ; supplementary motor area ; preparation ; execution ; sequential movement ; functional magnetic resonance imaging ; event-related procedure
刊名: NEUROSCIENCE LETTERS
发表日期: 2003-02-06
DOI: 10.1016/S0304-3940(02)1236-3
卷: 337, 期:2, 页:69-72
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Neurosciences
研究领域[WOS]: Neurosciences & Neurology
关键词[WOS]: SEQUENTIAL MOVEMENTS ; NEURONAL-ACTIVITY ; HUMAN BRAIN ; AREAS ; REPRESENTATIONS ; SUPPLEMENTARY ; PREMOTOR ; MONKEY ; TASK
英文摘要:

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. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.

语种: 英语
WOS记录号: WOS:000180756100002
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/53721
Appears in Collections:北京大学精神卫生研究所_期刊论文

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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

Recommended Citation:
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.
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