Source:http://linkedlifedata.com/resource/pubmed/id/16941831
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
2006-8-31
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pubmed:abstractText |
This paper proposes a novel prewhitening eigenspace beamformer suitable for magnetoencephalogram (MEG) source reconstruction when large background brain activities exist. The prerequisite for the method is that control-state measurements, which contain only the contributions from the background interference, be available, and that the covariance matrix of the background interference can be obtained from such control-state measurements. The proposed method then uses this interference covariance matrix to remove the influence of the interference in the reconstruction obtained from the target measurements. A numerical example, as well as applications to two types of MEG data, demonstrates the effectiveness of the proposed method.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0018-9294
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
53
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1755-64
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pubmed:dateRevised |
2011-5-23
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pubmed:meshHeading |
pubmed-meshheading:16941831-Algorithms,
pubmed-meshheading:16941831-Artifacts,
pubmed-meshheading:16941831-Biological Clocks,
pubmed-meshheading:16941831-Brain,
pubmed-meshheading:16941831-Brain Mapping,
pubmed-meshheading:16941831-Computer Simulation,
pubmed-meshheading:16941831-Diagnosis, Computer-Assisted,
pubmed-meshheading:16941831-Evoked Potentials,
pubmed-meshheading:16941831-Humans,
pubmed-meshheading:16941831-Magnetoencephalography,
pubmed-meshheading:16941831-Models, Neurological
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pubmed:year |
2006
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pubmed:articleTitle |
A novel adaptive beamformer for MEG source reconstruction effective when large background brain activities exist.
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pubmed:affiliation |
Department of Systems Design and Engineering, Tokyo Metropolitan University, Japan. ksekiha@cc.tmit.ac.jp
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
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