DocumentCode
1943419
Title
Identifying cortical sources of corticomuscle coherence during bimanual muscle contraction by temporal decorrelation
Author
Vigário, Ricardo ; Jensen, Ole
Author_Institution
Neural Networks Res. Centre, Helsinki Univ. of Technol., Finland
Volume
2
fYear
2003
fDate
1-4 July 2003
Firstpage
109
Abstract
Strong coherence around 20 Hz is known to exist between the magnetoencephalogram (MEG) recording the primary motor cortex and the contralateral electromyogram (EMG) during isometric muscle contraction. Here we apply a temporal decorrelation technique to identify the underlying brain areas producing signals coherent with the EMG. The algorithm chosen, the temporal decorrelation source separation (TDSEP). exploits efficiently the temporal structure present in the data.
Keywords
blind source separation; decorrelation; electromyography; magnetoencephalography; medical signal processing; 20 Hz; bimanual muscle contraction; contralateral electromyogram; cortical sources; corticomuscle coherence; magnetoencephalogram recording; temporal decorrelation source separation; Biological neural networks; Brain; Decorrelation; Electromyography; Independent component analysis; Magnetic analysis; Magnetic separation; Muscles; Signal processing; Source separation;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing and Its Applications, 2003. Proceedings. Seventh International Symposium on
Print_ISBN
0-7803-7946-2
Type
conf
DOI
10.1109/ISSPA.2003.1224827
Filename
1224827
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