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Analysis of magnetic source localization of P300 using the MUSIC (multiple signal classification) algorithm MUSICアルゴリズムを用いたP300の電流源解析

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著者

    • 魚橋, 哲夫 ウオハシ, テツオ

書誌事項

タイトル

Analysis of magnetic source localization of P300 using the MUSIC (multiple signal classification) algorithm

タイトル別名

MUSICアルゴリズムを用いたP300の電流源解析

著者名

魚橋, 哲夫

著者別名

ウオハシ, テツオ

学位授与大学

岡山大学

取得学位

博士 (医学)

学位授与番号

甲第3234号

学位授与年月日

2006-09-30

注記・抄録

博士論文

The authors studied the localization of P300 magnetic sources using the multiple signal classification (MUSIC) algorithm. Six healthy subjects (aged 24–34 years old) were investigated with 148-channel whole-head type magnetencephalography using an auditory oddball paradigm in passive mode. The authors also compared six stimulus combinations in order to find the optimal stimulus parameters for P300 magnetic field (P300m) in passive mode. Bilateral MUSIC peaks were located on the mesial temporal, superior temporal and parietal lobes. Interestingly, all MUSIC peaks in these regions emerged earlier in the right hemisphere than in the left hemisphere, suggesting that the right hemisphere has predominance over the left in the processing activity associated with P300m. There were no significant differences among the six stimulus combinations in evoking those P300m sources. The results of the present study suggest that the MUSIC algorithm could be a useful tool for analysis of the time-course of P300m.

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各種コード

  • NII論文ID(NAID)
    500000355855
  • NII著者ID(NRID)
    • 8000000356976
  • 本文言語コード
    • eng
  • NDL書誌ID
    • 000008472970
  • データ提供元
    • 機関リポジトリ
    • NDL-OPAC
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