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  State-dependent effects of transcranial oscillatory currents on the motor system during action observation

Feurra, M., Blagoveshchensky, E., Nikulin, V. V., Nazarova, M., Lebedeva, A., Pozdeeva, D., et al. (2019). State-dependent effects of transcranial oscillatory currents on the motor system during action observation. Scientific Reports, 9: 12858. doi:10.1038/s41598-019-49166-1.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-A5BE-C Version Permalink: http://hdl.handle.net/21.11116/0000-0004-A5BF-B
Genre: Journal Article

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 Creators:
Feurra, Matteo1, Author
Blagoveshchensky, Evgeny1, Author
Nikulin, Vadim V.1, 2, Author              
Nazarova, Maria1, Author
Lebedeva, Anna3, Author
Pozdeeva, Daria1, Author
Yurevich, Maria1, Author
Rossi, Simone4, Author
Affiliations:
1Centre for Cognition and Decision Making, National Research University Higher School of Economics, Moscow, Russia, ou_persistent22              
2Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
3Sainsbury Wellcome Centre for Neural Circuits and Behaviour, University College London, United Kingdom, ou_persistent22              
4Siena Brain Investigation & Neuromodulation Lab, Department of Medicine, Surgery and Neuroscience, University of Siena, Italy, ou_persistent22              

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 Abstract: We applied transcranial alternating current stimulation (tACS) to the primary motor cortex (M1) at different frequencies during an index–thumb pinch-grip observation task. To estimate changes in the corticospinal output, we used the size of motor evoked potentials (MEPs) obtained by transcranial magnetic stimulation (TMS) of M1 using an online MRI-guided simultaneous TMS-tACS approach. The results of the beta-tACS confirm a non-selective increase in corticospinal excitability in subjects at rest; an increase was observed for both of the tested hand muscles, the first dorsal interosseous (FDI) and the abductor digiti minimi (ADM). However, during action observation of the pinch-grip movement, the increase of corticospinal excitability was only observed for the prime mover FDI muscle and took place during alpha-tACS, while gamma-tACS affected both the FDI and control muscle (ADM) responses. These phenomena likely reflect the hypothesis that the mu and gamma rhythms specifically index the downstream modulation of primary sensorimotor areas by engaging mirror neuron activity. The current neuromodulation approach confirms that tACS can be used to induce neurophysiologically detectable state-dependent enhancement effects, even in complex motor-cognitive tasks.

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Language(s): eng - English
 Dates: 2018-09-172019-08-162019-09-06
 Publication Status: Published online
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 Identifiers: DOI: 10.1038/s41598-019-49166-1
PMID: 31492895
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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 9 Sequence Number: 12858 Start / End Page: - Identifier: ISSN: 2045-2322
CoNE: https://pure.mpg.de/cone/journals/resource/2045-2322