Difference in phase modulation of corticospinal excitability during the observation of the action of walking, with and without motor imagery
Difference in phase modulation of corticospinal excitability during the observation of the action of walking, with and without motor imagery
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DOI：
10.1097/wnr.0000000000000941
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发表时间：
2018-02-07
期刊：
影响因子：
1.7
通讯作者：
Nakazawa, Kimitaka
中科院分区：
文献类型：
--
作者：
Kaneko, Naotsugu;Masugi, Yohei;Nakazawa, Kimitaka
本研究的目的是阐明如何皮质脊髓兴奋性（CSE）是在观察的行动步行，结合运动想象（MI）调制。我们研究了在观察行走动作的过程中，有无MI的CSE相位调制的差异。我们在以下条件下使用经颅磁刺激测量胫骨前肌和比目鱼肌的运动诱发电位：（1）基线，（2）动作观察（AO），（3）AO和MI。结果表明，与单独AO相比，步行AO和MI使运动诱发电位增加。我们的研究结果表明，CSE可能是促进AO和MI的步行，而不是在AO单独。此外，我们假设，AO和MI的步行可能会促进CSE在胫骨前肌的方式，如在实际行走过程中诱发。
The aim of the current study was to clarify how corticospinal excitability (CSE) is modulated during the observation of the action of walking, combined with motor imagery (MI). We examined the difference in phase modulation of CSE with and without MI during the observation of the action of walking. We measured motor-evoked potentials in tibialis anterior and soleus muscles using transcranial magnetic stimulation under the following conditions: (1) baseline, (2) action observation (AO), and (3) AO and MI. Our results showed that, compared with AO alone, AO and MI of walking increased motor-evoked potentials. Our results suggest that CSE may be facilitated during AO and MI of walking, rather than during AO alone. Further, we postulated that AO and MI of walking may facilitate CSE in the tibialis anterior in a manner such as that evoked during actual walking.