Alpha band cortico-muscular coherence occurs in healthy individuals during mechanically-induced tremor

Francesco Budini, Lara M. McManus, Marika Berchicci, Federica Menotti, Andrea Macaluso, Francesco Di Russo, Madeleine M. Lowery, Giuseppe De Vito

Research output: Contribution to journalArticle

Abstract

The present work aimed at investigating the effects of mechanically amplified tremor on cortico-muscular coherence (CMC) in the alpha band. The study of CMC in this specific band is of particular interest because this coherence is usually absent in healthy individuals and it is an aberrant feature in patients affected by pathological tremors; understanding its mechanisms is therefore important. Thirteen healthy volunteers (23±4 years) performed elbow flexor sustained contractions both against a spring load and in isometric conditions at 20% of maximal voluntary isometric contraction (MVC). Spring stiffness was selected to induce instability in the stretch reflex servo loop. 64 EEG channels, surface EMG from the biceps brachii muscle and force were simultaneously recorded. Contractions against the spring resulted in greater fluctuations of the force signal and EMG amplitude compared to isometric conditions (p

Original languageEnglish
Article numbere115012
JournalPLoS One
Volume9
Issue number12
DOIs
Publication statusPublished - Dec 16 2014

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Tremor
Stretch Reflex
Isometric Contraction
Elbow
Electroencephalography
Healthy Volunteers
elbows
reflexes
Muscles
volunteers
Muscle
Stiffness
muscles

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Budini, F., McManus, L. M., Berchicci, M., Menotti, F., Macaluso, A., Di Russo, F., ... De Vito, G. (2014). Alpha band cortico-muscular coherence occurs in healthy individuals during mechanically-induced tremor. PLoS One, 9(12), [e115012]. https://doi.org/10.1371/journal.pone.0115012

Alpha band cortico-muscular coherence occurs in healthy individuals during mechanically-induced tremor. / Budini, Francesco; McManus, Lara M.; Berchicci, Marika; Menotti, Federica; Macaluso, Andrea; Di Russo, Francesco; Lowery, Madeleine M.; De Vito, Giuseppe.

In: PLoS One, Vol. 9, No. 12, e115012, 16.12.2014.

Research output: Contribution to journalArticle

Budini, F, McManus, LM, Berchicci, M, Menotti, F, Macaluso, A, Di Russo, F, Lowery, MM & De Vito, G 2014, 'Alpha band cortico-muscular coherence occurs in healthy individuals during mechanically-induced tremor', PLoS One, vol. 9, no. 12, e115012. https://doi.org/10.1371/journal.pone.0115012
Budini F, McManus LM, Berchicci M, Menotti F, Macaluso A, Di Russo F et al. Alpha band cortico-muscular coherence occurs in healthy individuals during mechanically-induced tremor. PLoS One. 2014 Dec 16;9(12). e115012. https://doi.org/10.1371/journal.pone.0115012
Budini, Francesco ; McManus, Lara M. ; Berchicci, Marika ; Menotti, Federica ; Macaluso, Andrea ; Di Russo, Francesco ; Lowery, Madeleine M. ; De Vito, Giuseppe. / Alpha band cortico-muscular coherence occurs in healthy individuals during mechanically-induced tremor. In: PLoS One. 2014 ; Vol. 9, No. 12.
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