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利手和非利手随意运动的全脑功能磁共振成像
Authors
于薇
张兆琪
+5 more
晏子旭
林冲宇
翁旭初
臧玉峰
马晓海
Publication date
1 January 2003
Publisher
Abstract
目的 利用全脑功能磁共振成像(fMRI)技术,探讨参与利手和非利手简单随意运动的关键脑结构。方法 采用Siemens公司Sonata 1.5T磁共振成像系统,对7名健康右利手志愿者的利手或非利手食指按键运动进行了全脑扫描。数据经头动矫正、空间标准化、空间平滑等预处理后,通过互相关分析分别获得利手和非利手运动的脑激活统计参数图。结果 利手运动主要激活对侧初级运动区(MI)、双侧辅助运动区(SMA)、双侧运动二区(MII)和同侧小脑,而非利手运动除以上区域外还激活了对侧前运动区(PMC),而且SMA和MII的激活体积大于利手运动。结论 全脑fMRI研究表明,随意运动依赖于大脑皮质和小脑等许多脑结构的参与.与利手运动相比,非利手运动更依赖于SMA和PMC等高级运动控制区
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Institutional Repository of Institute of Psychology, Chinese Academy of Sciences
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oai:ir.psych.ac.cn:311026/3771...
Last time updated on 30/04/2021
Institutional Repository of Institute of Psychology, Chinese Academy of Sciences
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.psych.ac.cn:311026/3316...
Last time updated on 18/12/2020