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Corticospinal and Spinal Excitabilities Are Modulated during Motor Imagery Associated with Somatosensory Electrical Nerve Stimulation
Joint Authors
Traverse, E.
Lebon, F.
Martin, A.
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-23
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Motor imagery (MI), the mental simulation of an action, influences the cortical, corticospinal, and spinal levels, despite the lack of somatosensory afferent feedbacks.
The aim of this study was to analyze the effect of MI associated with somatosensory stimulation (SS) on the corticospinal and spinal excitabilities.
We used transcranial magnetic stimulation and peripheral nerve stimulation to induce motor-evoked potentials (MEP) and H-reflexes, respectively, in soleus and medialis gastrocnemius (MG) muscles of the right leg.
Twelve participants performed three tasks: (1) MI of submaximal plantar flexion, (2) SS at 65 Hz on the posterior tibial nerve with an intensity below the motor threshold, and (3) MI + SS.
MEP and H-reflex amplitudes were recorded before, during, and after the tasks.
Our results confirmed that MI increased corticospinal excitability in a time-specific manner.
We found that MI+SS tended to potentiate MEP amplitude of the MG muscle compared to MI alone.
We confirmed that SS decreased spinal excitability, and this decrease was partially compensated when combined with MI, especially for the MG muscle.
The increase of CSE could be explained by a modulation of the spinal inhibitions induced by SS, depending on the amount of afferent feedbacks.
American Psychological Association (APA)
Traverse, E.& Lebon, F.& Martin, A.. 2018. Corticospinal and Spinal Excitabilities Are Modulated during Motor Imagery Associated with Somatosensory Electrical Nerve Stimulation. Neural Plasticity،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1210448
Modern Language Association (MLA)
Traverse, E.…[et al.]. Corticospinal and Spinal Excitabilities Are Modulated during Motor Imagery Associated with Somatosensory Electrical Nerve Stimulation. Neural Plasticity No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1210448
American Medical Association (AMA)
Traverse, E.& Lebon, F.& Martin, A.. Corticospinal and Spinal Excitabilities Are Modulated during Motor Imagery Associated with Somatosensory Electrical Nerve Stimulation. Neural Plasticity. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1210448
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210448