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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
2003-02-06
Source PublicationNEUROSCIENCE LETTERS
ISSN0304-3940
SubtypeArticle
Volume337Issue:2Pages:69-72
AbstractNeuronal 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.
Keywordprimary motor cortex supplementary motor area preparation execution sequential movement functional magnetic resonance imaging event-related procedure
Subject Area生理心理学/生物心理学
Indexed BySCI
Language英语
WOS IDWOS:000180756100002
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/5431
Collection中国科学院心理研究所回溯数据库(1956-2010)
Corresponding AuthorXuchu Weng
Affiliation1.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
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.
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