Article (Scientific journals)
Median nerve stimulation induced motor learning in healthy adults: A study of timing of stimulation and type of learning
Carvalho, S.; French, M.; Thibaut, Aurore et al.
2018In European Journal of Neuroscience, 48 (1), p. 1667-1679
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Keywords :
Article
Abstract :
[en] Median nerve stimulation (MNS) has been shown to change brain metaplasticity over the somatosensory networks, based on a bottom-up mechanism and may improve motor learning. This exploratory study aimed to test the effects of MNS on implicit and explicit motor learning as measured by the serial reaction time task (SRTT) using a double-blind, sham-controlled, randomized trial, in which participants were allocated to one of three groups: (a) online active MNS during acquisition, (b) offline active MNS during early consolidation and (c) sham MNS. SRTT was performed at baseline, during the training phase (acquisition period), and 30 min after training. We assessed the effects of MNS on explicit and implicit motor learning at the end of the training/acquisition period and at retest. The group receiving online MNS (during acquisition) showed a significantly higher learning index for the explicit sequences compared to the offline group (MNS during early consolidation) and the sham group. The offline group also showed a higher learning index as compared to sham. Additionally, participants receiving online MNS recalled the explicit sentence significantly more than the offline MNS and sham groups. MNS effects on motor learning have a specific effect on type of learning (explicit vs. implicit) and are dependent on timing of stimulation (during acquisition vs. early consolidation). More research is needed to understand and optimize the effects of peripheral electrical stimulation on motor learning. Taken together, our results show that MNS, especially when applied during the acquisition phase, is a promising tool to modulate motor leaning. © 2018 Federation of European Neuroscience Societies and John Wiley & Sons Ltd
Disciplines :
Neurology
Author, co-author :
Carvalho, S.;  Spaulding Neuromodulation Center, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States, Neurotherapeutics and Experimental Psychopatology Group, Psychological Neuroscience Laboratory, CIPsi, School of Psychology, University of Minho, Campus de Gualtar, Braga, Portugal
French, M.;  Spaulding Neuromodulation Center, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
Thibaut, Aurore ;  Université de Liège - ULiège > Consciousness-Coma Science Group
Lima, W.;  Spaulding Neuromodulation Center, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
Simis, M.;  Instituto de Medicina Fisica e Reabilitacao, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, Brazil
Leite, J.;  Spaulding Neuromodulation Center, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States, Neurotherapeutics and Experimental Psychopatology Group, Psychological Neuroscience Laboratory, CIPsi, School of Psychology, University of Minho, Campus de Gualtar, Braga, Portugal, Univ Portucalense, Portucalense Institute for Human Development – INPP, Oporto, Portugal
Fregni, F.;  Spaulding Neuromodulation Center, Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
Language :
English
Title :
Median nerve stimulation induced motor learning in healthy adults: A study of timing of stimulation and type of learning
Publication date :
2018
Journal title :
European Journal of Neuroscience
ISSN :
0953-816X
eISSN :
1460-9568
Publisher :
Blackwell Publishing Ltd
Volume :
48
Issue :
1
Pages :
1667-1679
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 December 2020

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