Functional organization of the primary motor cortex characterized by event-related fMRI during movement preparation and execution

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	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
刊名	NEUROSCIENCE LETTERS
	2003-02-06
卷号	337 期号:2 页码:69-72
关键词	primary motor cortex supplementary motor area preparation execution sequential movement functional magnetic resonance imaging event-related procedure
ISSN号	0304-3940
文献子类	Article
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.; 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.
学科主题	生理心理学/生物心理学
语种	英语
WOS记录号	WOS:000180756100002
公开日期	2011-08-22
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/5432]
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	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
推荐引用方式 GB/T 7714	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.