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Title: Cerebral plasticity after subcortical stroke as revealed by cortico-muscular coherence
Authors: Meng, F
Tong, KYR
Chan, STP
Wong, WW
Lui, KH
Tang, KW
Gao, X
Gao, S
Issue Date: Jun-2009
Source: IEEE transactions on neural systems and rehabilitation engineering, June 2009, v. 17, no. 3, p. 234-243
Abstract: The latency estimation of cortico-muscular coherence (CMCoh) could provide valuable information, especially for the pathological study. However, the conduction time from the central cortical rhythm to peripheral oscillations has not been explored for stroke patients. In this study one recently proposed method, maximizing coherence, was applied into the coherence analysis to estimate the latency by which the extensor carpi radialis electromyographic signals lagged behind the electroencephalographic time series with seven subcortical stroke subjects. Significantly prolonged conduction time was found in affected sides compared with the unaffected sides. The interhemispheric spatial displacement was also calculated using electrodes projection optimization and spherical surface laplacian. The results showed that the CMCoh could help investigate the cerebral reorganization after stroke.
Keywords: Cerebral plasticity
Cortico-muscular coherence
Publisher: Institute of Electrical and Electronics Engineers
Journal: IEEE transactions on neural systems and rehabilitation engineering 
ISSN: 1534-4320
EISSN: 1558-0210
DOI: 10.1109/TNSRE.2008.2006209
Rights: © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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