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ID 13617
Eprint ID
13617
FullText URL
Thumnail 113_133.pdf 2.78 MB
Title Alternative
Analysis of pain-related somatosensory evoked magnetic fields using the MUSIC (multiple signal classification) algorithm for magnetoencephalography
Author
Ninomiya, Youtaro
Abstract
To compute an electrical current source from electrophysiological date, the single equivalent current dipole has been widely used. However, the method is not suitable for analyzing multiple dipoles. We used MUltiple SIgnal Classification (MUSIC) algorithm for analyzing multiple dipole sources in pain-related somatosensory evoked magnetic fields (SEFs) that had been obtained by 148-channel whole head type magnetoencephalography. Both middle latency (contralateral SⅠ) and long latency (bilateral SⅡ and cingulate gyri) components were clearly identified in the maps superimpksed on MR images. Not only the MUSIC results were in very good agreement with the single dipole estimation results, but also gave the temporal profiles of each current dipole source in stacks of consecutive maps. Thse results suggested that MUSIC algorithm is an effective tool for the analysis of multiple dipole sources of pain-related SEFs.
Keywords
multiple signal classification (MUSIC) algorithm
pain-related somatosensory evoked magnetic fields
whole-head-type magnetoencephalography
Note
原著
Published Date
2001-08-31
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume113
Issue
issue2
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
133
End Page
139
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/113/2/113_2_133/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/index.html
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma