ID | 10869 |
Eprint ID | 10869
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FullText URL | |
Title Alternative | MUSICアルゴリズムを用いたP300の電流源解析
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Author |
Uohashi, Tetsuo
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Abstract | 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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Keywords | event-related potential
laterality
magnetencephalography
mesial temporal lobe
multiple signal
P300
parietal lobe
superior temporal lobe
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Note | http://dx.doi.org/doi:10.1111/j.1440-1819.2006.01578.x
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Published Date | 2006-09-30
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Publication Title | |
Content Type |
Thesis or Dissertation
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Grant Number | 甲第3234号
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Granted Date | 2006-09-30
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Thesis Type |
Doctor of Philosophy in Medical Science
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Grantor | 岡山大学
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Official Url | http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=17109697&dopt=Abstract
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language |
Japanese
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File Version | none
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Refereed |
Unknown
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