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ID 10869
Eprint ID
10869
フルテキストURL
K003234.pdf 78.1 KB
タイトル(別表記)
MUSICアルゴリズムを用いたP300の電流源解析
著者
魚橋 哲夫 岡山大学
抄録
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.
キーワード
event-related potential
laterality
magnetencephalography
mesial temporal lobe
multiple signal
P300
parietal lobe
superior temporal lobe
備考
http://dx.doi.org/doi:10.1111/j.1440-1819.2006.01578.x
発行日
2006-09-30
出版物タイトル
資料タイプ
学位論文
学位授与番号
甲第3234号
学位授与年月日
2006-09-30
学位・専攻分野
博士(医学)
授与大学
岡山大学
オフィシャル URL
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=17109697&dopt=Abstract
言語
Japanese
論文のバージョン
none
査読
不明