Movement-induced uncoupling of primary sensory and motor areas in focal task-specific hand dystonia

•Through an ad hoc procedure (FSS), distinct sources were identified in S1 and M1.•No differences were found between spectral properties of patients and controls for either S1 and M1.•Gamma band S1–M1 coherence was bilaterally reduced in patients during movement.•In focal hand dystonia, uncoupling r...

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Bibliographic Details
Published in:	Neuroscience Vol. 250; pp. 434 - 445
Main Authors:	Melgari, J.M., Zappasodi, F., Porcaro, C., Tomasevic, L., Cassetta, E., Rossini, P.M., Tecchio, F.
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier Ltd 10.10.2013 Elsevier
Subjects:	Adult Biological and medical sciences coherence Data Interpretation, Statistical Dystonia - physiopathology Dystonic Disorders - physiopathology Electric Stimulation Electroencephalography Electroencephalography Phase Synchronization Female focal task-specific hand dystonia functional connectivity Functional Source Separation Fundamental and applied biological sciences. Psychology Hand Humans Magnetoencephalography magnetoencephalography (MEG) Male Middle Aged Motor Cortex - physiology Movement - physiology Muscle Contraction - physiology Muscle Relaxation - physiology Neurology sensorimotor integration Somatosensory Cortex - physiopathology Vertebrates: nervous system and sense organs PSD focal task-specific hand dystonia OP M1 coherence ICA ECD FSS FSS1 contra-D FS MEG sensorimotor integration FSM1 functional connectivity ANOVA magnetoencephalography (MEG) ipsi-D S1 Functional Source Separation primary sensory cortex Independent Component Analysis functional source hemisphere ipsilateral to the dystonic arm equivalent current dipole analysis of variance opponens pollicis primary motor cortex hand primary motor cortex Functional Source hand primary sensory cortex Functional Source Power Spectral Density FS S1 hemisphere contralateral to the dystonic arm FS M1 magnetoencephalography Sensorimotor coordination Magnetoencephalography Hand FS(S1) FS(M1)
ISSN:	0306-4522, 1873-7544, 1873-7544
Online Access:	Get full text
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