Neuromagnetic beta oscillation changes during motor imagery and motor execution of skilled movements

被引：24

作者：

Nakagawa, Kei ^{[1
]}

Aokage, Yoriyuki ^{[1
]}

Fukuri, Takashi ^{[1
]}

Kawahara, Yumi ^{[1
,2
]}

Hashizume, Akira ^{[3
]}

Kurisu, Kaoru ^{[3
]}

Yuge, Louis ^{[1
]}

机构：

[1] Hiroshima Univ, Grad Sch Hlth Sci, Div Bioenvironm Adaptat Sci, Hiroshima 7348551, Japan

[2] Hiroshima Univ, Dept Clin Neurosci & Therapeut, Hiroshima 7348551, Japan

[3] Hiroshima Univ, Dept Neurosurg, Hiroshima 7348551, Japan

来源：

NEUROREPORT | 2011年 / 22卷 / 05期

关键词：

event-related synchronization; magnetoencephalography; motor execution; motor imagery; skilled movement; FINGER MOVEMENTS; CORTEX; HAND; STIMULATION; ACTIVATION; BRAIN; FMRI;

D O I：

10.1097/WNR.0b013e328344b480

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We showed the differences in brain activities during motor imagery and motor execution when performing single skilled movements using magnetoencephalography. The tasks included finger tapping and chopstick usage with the dominant or nondominant hand. Chopstick usage with the nondominant hand was an unfamiliar task and required higher skill. Neuromagnetic data were processed by fast Fourier transformation, and beta band event-related synchronization was evaluated. Beta oscillation changes were observed in the right and left sensorimotor cortices during both tasks; however, the ipsilateral changes were smaller during motor imagery than during motor execution. These results suggest that motor imagery of skilled movement tasks causes a smaller neuronal burden in the sensorimotor cortex. NeuroReport 22:217-222 (C) 2011 Wolters Kluwer Health | Lippincott Williams & Wilkins.

引用

页码：217 / 222

页数：6

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