The spectral method of cortico-muscular coherence (CMC) can reveal the communication patterns between the cerebral cortex and muscle periphery, thus providing guidelines for the development of new therapies for movement disorders and insights into fundamental motor neuroscience. The method is applied to electroencephalogram (EEG) and surface electromyogram (sEMG) recorded synchronously during a motor task. However, synchronous EEG and sEMG components are typically too weak compared to additive noise and background activities making significant coherence very difficult to detect. Dictionary learning and sparse representation have been proved effective in enhancing CMC levels. In this paper, we explore the potential of a recently proposed dictionary learning algorithm in combination with an improved component selection algorithm for CMC enhancement. The effectiveness of the method was demonstrated using neurophysiological data where it achieved considerable improvements in CMC levels.
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Boston Univ, Keck Lab Network Physiol, Dept Phys, Boston, MA 02215 USA
Univ Calabria, Evolutionary Syst Grp Lab, Dept Phys, Arcavacata Di Rende, ItalyBoston Univ, Keck Lab Network Physiol, Dept Phys, Boston, MA 02215 USA
Rizzo, Rossella
Zhang, Xiyun
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Boston Univ, Keck Lab Network Physiol, Dept Phys, Boston, MA 02215 USA
Jinan Univ, Dept Phys, Guangzhou, Peoples R ChinaBoston Univ, Keck Lab Network Physiol, Dept Phys, Boston, MA 02215 USA
Zhang, Xiyun
Wang, Jilin W. J. L.
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Boston Univ, Keck Lab Network Physiol, Dept Phys, Boston, MA 02215 USABoston Univ, Keck Lab Network Physiol, Dept Phys, Boston, MA 02215 USA
Wang, Jilin W. J. L.
Lombardi, Fabrizio
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IST Austria, Klostemeuburg, AustriaBoston Univ, Keck Lab Network Physiol, Dept Phys, Boston, MA 02215 USA
Lombardi, Fabrizio
Ivanov, Plamen Ch
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Boston Univ, Keck Lab Network Physiol, Dept Phys, Boston, MA 02215 USA
Harvard Med Sch, Div Sleep Med, Brigham & Womens Hosp, Boston, MA 02115 USA
Bulgarian Acad Sci, Inst Solid State Phys, Sofia, BulgariaBoston Univ, Keck Lab Network Physiol, Dept Phys, Boston, MA 02215 USA
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Fdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, ItalyFdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, Italy
Franceschetti, S.
Visani, E.
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Fdn IRCCS Ist Neurol Carlo Besta, Dept Epileptol, Via Celoria 11, I-20133 Milan, ItalyFdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, Italy
Visani, E.
Sebastiano, D. Rossi
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Fdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, ItalyFdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, Italy
Sebastiano, D. Rossi
Duran, D.
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Fdn IRCCS Ist Neurol Carlo Besta, Dept Epileptol, Via Celoria 11, I-20133 Milan, ItalyFdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, Italy
Duran, D.
Granata, T.
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Fdn IRCCS Ist Neurol Carlo Besta, Dept Epileptol, Via Celoria 11, I-20133 Milan, Italy
Fdn IRCCS Ist Neurol Carlo Besta, Dept Pediat Neurosci, Milan, ItalyFdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, Italy
Granata, T.
Solazzi, R.
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Fdn IRCCS Ist Neurol Carlo Besta, Dept Epileptol, Via Celoria 11, I-20133 Milan, Italy
Fdn IRCCS Ist Neurol Carlo Besta, Dept Pediat Neurosci, Milan, ItalyFdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, Italy
Solazzi, R.
Varotto, G.
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Fdn IRCCS Ist Neurol Carlo Besta, Unit Clin & Biomed Engn, Milan, ItalyFdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, Italy
Varotto, G.
Canafoglia, L.
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Fdn IRCCS Ist Neurol Carlo Besta, Dept Epileptol, Via Celoria 11, I-20133 Milan, ItalyFdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, Italy
Canafoglia, L.
Panzica, F.
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Fdn IRCCS Ist Neurol Carlo Besta, Unit Clin & Biomed Engn, Milan, ItalyFdn IRCCS Ist Neurol Carlo Besta, Neurophysiopathol, Milan, Italy
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Bioengineering Unit, University of Strathclyde, Glasgow
Bioengineering Unit, University of Strathclyde, GlasgowBioengineering Unit, University of Strathclyde, Glasgow
Conway B.A.
Reid C.
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Bioengineering Unit, University of Strathclyde, GlasgowBioengineering Unit, University of Strathclyde, Glasgow
Reid C.
Halliday D.M.
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Department of Electronics, University of York, Heslington, YorkBioengineering Unit, University of Strathclyde, Glasgow
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NINCDS, Human Motor Control Sect, Med Neurol Branch, NIH, Bethesda, MD 20892 USANINCDS, Human Motor Control Sect, Med Neurol Branch, NIH, Bethesda, MD 20892 USA
Mima, T
Hallett, M
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NINCDS, Human Motor Control Sect, Med Neurol Branch, NIH, Bethesda, MD 20892 USANINCDS, Human Motor Control Sect, Med Neurol Branch, NIH, Bethesda, MD 20892 USA