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... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Neuroreport Wolters Kluwer Health

Difference in phase modulation of corticospinal excitability during the observation of the action of walking, with and without motor imagery

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Publisher
Wolters Kluwer
Copyright
Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.
ISSN
0959-4965
eISSN
1473-558X
D.O.I.
10.1097/WNR.0000000000000941
Publisher site
See Article on Publisher Site

Abstract

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.

Journal

NeuroreportWolters Kluwer Health

Published: Feb 7, 2018

References

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