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ID 13617
Eprint ID
13617
フルテキストURL
Thumnail 113_133.pdf 2.78 MB
タイトル(別表記)
Analysis of pain-related somatosensory evoked magnetic fields using the MUSIC (multiple signal classification) algorithm for magnetoencephalography
著者
二宮 庸太郎 Department of Neuropsychiatry, Okayama University Medical School
抄録
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.
キーワード
multiple signal classification (MUSIC) algorithm
pain-related somatosensory evoked magnetic fields
whole-head-type magnetoencephalography
備考
原著
発行日
2001-08-31
出版物タイトル
岡山医学会雑誌
出版物タイトル(別表記)
Journal of Okayama Medical Association
113巻
2号
出版者
岡山医学会
出版者(別表記)
Okayama Medical Association
開始ページ
133
終了ページ
139
ISSN
0030-1558
NCID
AN00032489
資料タイプ
学術雑誌論文
オフィシャル URL
https://www.jstage.jst.go.jp/article/joma1947/113/2/113_2_133/_article/-char/ja/
関連URL
http://www.okayama-u.ac.jp/user/oma/index.html
言語
Japanese
著作権者
岡山医学会
論文のバージョン
publisher
査読
有り
Eprints Journal Name
joma