ID | 13617 |
Eprint ID | 13617
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FullText URL | |
Title Alternative | Analysis of pain-related somatosensory evoked magnetic fields using the MUSIC (multiple signal classification) algorithm for magnetoencephalography
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Author |
Ninomiya, Youtaro
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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.
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Keywords | multiple signal classification (MUSIC) algorithm
pain-related somatosensory evoked magnetic fields
whole-head-type magnetoencephalography
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Note | 原著
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Published Date | 2001-08-31
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Publication Title |
岡山医学会雑誌
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Publication Title Alternative | Journal of Okayama Medical Association
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Volume | volume113
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Issue | issue2
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Publisher | 岡山医学会
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Publisher Alternative | Okayama Medical Association
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Start Page | 133
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End Page | 139
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ISSN | 0030-1558
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NCID | AN00032489
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Content Type |
Journal Article
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Official Url | https://www.jstage.jst.go.jp/article/joma1947/113/2/113_2_133/_article/-char/ja/
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Related Url | http://www.okayama-u.ac.jp/user/oma/index.html
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language |
Japanese
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Copyright Holders | 岡山医学会
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File Version | publisher
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Refereed |
True
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Eprints Journal Name | joma
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