下肢运动想象过程中刺激诱发的20赫兹活动的调制。
Modulation of stimulus-induced 20-Hz activity during lower extremity motor imagery.
作者信息
Kinai Takahiro, Matsubayashi Jun, Minami Chihiro, Tominaga Wataru, Nakamura Megumi, Nagamine Takashi, Matsuhashi Masao, Mima Tatsuya, Fukuyama Hidenao, Mitani Akira
机构信息
Department of Human Health Sciences, Laboratory of Neurorehabilitation, Graduate School of Medicine, Kyoto University, Syogoin, Kyoto, Japan.
出版信息
Neurosci Res. 2009 Jul;64(3):335-7. doi: 10.1016/j.neures.2009.03.013. Epub 2009 Apr 6.
Using magnetoencephalography, we measured 20-Hz activity induced after the common peroneal nerve (CPN) stimulation in 15 healthy subjects during the execution of foot movement or its motor imagery, and examined whether the 20-Hz activity is suppressed during motor imagery of foot movement. The prominent 20-Hz activity was contralaterally induced in the paracentral area after CPN stimulation, and it was almost completely suppressed during execution of the foot movement and partially suppressed during its motor imagery. These results suggest that the modulation of the 20-Hz activity is a useful indicator of the motor imagery of foot movement.
我们利用脑磁图技术，在15名健康受试者进行足部运动或其运动想象时，测量了腓总神经（CPN）刺激后诱发的20赫兹活动，并研究了在足部运动的运动想象过程中，该20赫兹活动是否受到抑制。CPN刺激后，在中央旁区对侧诱发了显著的20赫兹活动，在足部运动执行过程中该活动几乎完全被抑制，在其运动想象过程中部分被抑制。这些结果表明，20赫兹活动的调制是足部运动想象的一个有用指标。
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