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| Involvement of the crebellum in sequential finger movement learning： Evidence from functional magnetic resonance imaging | |
| 引用本文： | ZHU Yihong DI Haibo YUAN Yi REN Jin＇ge YU Wei ZHANG Zhaoqi GAO Jiahong WENG Xuchu CHEN Yizhang.Involvement of the crebellum in sequential finger movement learning： Evidence from functional magnetic resonance imaging[J].中国科学通报(英文版),2005,50(17):1887-1891. |
| 作者姓名： | ZHU Yihong DI Haibo YUAN Yi REN Jin＇ge YU Wei ZHANG Zhaoqi GAO Jiahong WENG Xuchu CHEN Yizhang |
| 作者单位： | [1]Medical School, Zhejiang University, Hangzhou 310006, China [2]Medical School, Hangzhou Normal University, Hangzhou 310018,China [3]Laboratory for Higher Brain Function, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China; [4]Department of Radiology, Beijing Anzhen Hospital of Capital University, Beijing 100029, China [5]Research Imaging Center, University of Texas Health Science Center, San Antonio. Texas, USA |
| 摘 要： | Whether the cerebellum is involved in voluntary motor learning or motor performance is the subject of a new debate. Using functional magnetic resonance imaging （fMRI）, we examined cerebellar activation in eight voluntecrs before and after an extended period of training. Activation volume on both sides of cerebellum after learning was significantly reduced compared to that before learning even under the same motor frequency. Remarkably, while motor frequency for the training sequence was significantly higher than the control sequence after 41 d of learning, activation in the cerebellum for both sequences, with respect to activation loci and volumes, was very similar. These results suggest that the cerebellum was involved in motor learning but not motor performance. Changes of cerebellar activation from training thus appear to be associated with learning but not with improvement on task performance. |
| 关 键 词： | 小脑 学习机 连续运动 磁共振成像 fMRI |
| 收稿时间： | 2005-04-07 |
| 修稿时间： | 2005-04-072005-07-06 |
Involvement of the crebellum in sequential finger movement learning: Evidence from functional magnetic resonance imaging |
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| Zhu Yihong,Di Haibo,Yuan Yi,Ren Jin’ge,Yu Wei,Zhang Zhaoqi,Gao Jiahong,Weng Xuchu,Chen Yizhang.Involvement of the crebellum in sequential finger movement learning: Evidence from functional magnetic resonance imaging[J].Chinese Science Bulletin,2005,50(17):1887-1891. | |
| Authors: | Zhu Yihong Di Haibo Yuan Yi Ren Jin’ge Yu Wei Zhang Zhaoqi Gao Jiahong Weng Xuchu Chen Yizhang |
| Institution: | 1. Medical School, Zhejiang University, 310006, Hangzhou, China 2. Medical School, Hangzhou Normal University, 310018, Hangzhou, China 3. Laboratory for Higher Brain Function, Institute of Psychology, Chinese Academy of Sciences, 100101, Beijing, China 4. Department of Radiology, Beijing Anzhen Hospital of Capital University, 100029, Beijing, China 5. Research Imaging Center, University of Texas Health Science Center, San Antonio, Texas, USA |
| Abstract: | Whether the cerebellum is involved in volun-tary motor learning or motor performance is the subject of a new debate. Using functional magnetic resonance imaging (fMRI), we examined cerebellar activation in eight volun-teers before and after an extended period of training. Activa-tion volume on both sides of cerebellum after learning was significantly reduced compared to that before learning even under the same motor frequency. Remarkably, while motor frequency for the training sequence was significantly higher than the control sequence after 41 d of learning, activation in the cerebellum for both sequences, with respect to activation loci and volumes, was very similar. These results suggest that the cerebellum was involved in motor learning but not motor performance. Changes of cerebellar activation from training thus appear to be associated with learning but not with im-provement on task performance. |
| Keywords: | cerebellum learning performance sequential movement fMRI |
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