PSYCH OpenIR  > 中国科学院心理研究所回溯数据库(1956-2010)
Involvement of secondary motor areas in externally-triggered single-finger movements of dominant and a non-dominant hands
Gu, Y; Zang, WF; Weng, XC; Jia, FC; Li, EZ; Wang, JJ; WENG Xuchu
2003-08-01
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
SubtypeArticle
Volume48Issue:15Pages:1569-1575
AbstractWhether the secondary motor areas are involved in simple voluntary movements remains controversial. Differences in the neural substrates of movements with the dominant and the non-dominant hands have not been well documented. In the present study, functional magnetic resonance imaging (fMRI) was used to investigate the hemodynamic response in the primary motor cortex (M1), supplementary motor area (SMA) and premotor cortex (PMC) in six healthy right-handed subjects while performing a visually-guided ringer-tapping task with their dominant or non-dominant hands. Significant activation was observed in M1, SMA and PMC during this externally triggered simple voluntary movement task. While dominant hand movements only activated contralateral motor areas, non-dominant hand movements also activated ipsilateral SMA and PMC. The results provide strong evidence for the involvement of the secondary motor areas in simple voluntary movements, and also suggest that movements of the dominant hand primarily engage the contralateral secondary motor areas, whereas movements of the non-dominant hand engage bilateral secondary motor areas.; Whether the secondary motor areas are involved in simple voluntary movements remains controversial. Differences in the neural substrates of movements with the dominant and the non-dominant hands have not been well documented. In the present study, functional magnetic resonance imaging (fMRI) was used to investigate the hemodynamic response in the primary motor cortex (M1), supplementary motor area (SMA) and premotor cortex (PMC) in six healthy right-handed subjects while performing a visually-guided ringer-tapping task with their dominant or non-dominant hands. Significant activation was observed in M1, SMA and PMC during this externally triggered simple voluntary movement task. While dominant hand movements only activated contralateral motor areas, non-dominant hand movements also activated ipsilateral SMA and PMC. The results provide strong evidence for the involvement of the secondary motor areas in simple voluntary movements, and also suggest that movements of the dominant hand primarily engage the contralateral secondary motor areas, whereas movements of the non-dominant hand engage bilateral secondary motor areas.
Keywordfunctional magnetic resonance imaging (fMRI) primary motor cortex (M1) secondary motor areas supplementary motor area (SMA) premotor cortex (PMC) simple voluntary movement dominant hand
Subject Area生理心理学/生物心理学
Indexed BySCI
Language英语
WOS IDWOS:000184925400013
Citation statistics
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/5499
Collection中国科学院心理研究所回溯数据库(1956-2010)
Corresponding AuthorWENG Xuchu
Affiliation1.Chinese Acad Sci, Inst Psychol, Lab Higher Brain Funct, Beijing 100101, Peoples R China
2.Nanjing Univ, Dept Biol Sci & Technol, Nanjing 210093, Peoples R China
3.Shougang Gen Hosp, Dept MRI, Beijing 100041, Peoples R China
Recommended Citation
GB/T 7714
Gu, Y,Zang, WF,Weng, XC,et al. Involvement of secondary motor areas in externally-triggered single-finger movements of dominant and a non-dominant hands[J]. CHINESE SCIENCE BULLETIN,2003,48(15):1569-1575.
APA Gu, Y.,Zang, WF.,Weng, XC.,Jia, FC.,Li, EZ.,...&WENG Xuchu.(2003).Involvement of secondary motor areas in externally-triggered single-finger movements of dominant and a non-dominant hands.CHINESE SCIENCE BULLETIN,48(15),1569-1575.
MLA Gu, Y,et al."Involvement of secondary motor areas in externally-triggered single-finger movements of dominant and a non-dominant hands".CHINESE SCIENCE BULLETIN 48.15(2003):1569-1575.
Files in This Item:
File Name/Size DocType Version Access License
Gu-2003-Involvement (351KB) 限制开放--View Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Gu, Y]'s Articles
[Zang, WF]'s Articles
[Weng, XC]'s Articles
Baidu academic
Similar articles in Baidu academic
[Gu, Y]'s Articles
[Zang, WF]'s Articles
[Weng, XC]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Gu, Y]'s Articles
[Zang, WF]'s Articles
[Weng, XC]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Gu-2003-Involvement of secondary motor.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.