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  1. 060 工学部
  2. 10 学術雑誌論文
  3. 10 査読済論文
  1. 0 資料タイプ別
  2. 01 学術雑誌論文

Cortical Potential Imaging of Brain Electrical Activity by Means of Parametric Projection Filter

http://hdl.handle.net/10191/25909
http://hdl.handle.net/10191/25909
1e133bb4-6abb-44fa-ba76-19eaf7021b80
名前 / ファイル ライセンス アクション
43_1_66-69.pdf 43_1_66-69.pdf (152.2 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2014-02-28
タイトル
言語 en
タイトル Cortical Potential Imaging of Brain Electrical Activity by Means of Parametric Projection Filter
言語
言語 eng
キーワード
主題Scheme Other
主題 High Resolution EEG
キーワード
主題Scheme Other
主題 cortical potential imaging
キーワード
主題Scheme Other
主題 inverse problem
キーワード
主題Scheme Other
主題 parametric projection filter
キーワード
主題Scheme Other
主題 noise covariance
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Hori, J.

× Hori, J.

WEKO 7361

en Hori, J.

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Lian, J.

× Lian, J.

WEKO 7362

en Lian, J.

Search repository
He, B.

× He, B.

WEKO 7363

en He, B.

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抄録
内容記述タイプ Abstract
内容記述 Objectives: The objective of this study was to explore suitable spatial filters for inverse estimation of cortical potentials from the scalp electroencephalogram. The effect of incorporating noise covariance into inverse procedures was examined by computer simulations and tested in human experiment. Methods: The parametric projection filter, which allows inverse estimation with the presence of information on the noise, was applied to an inhomogeneous three-concentric-sphere model under various noise conditions in order to estimate the cortical potentials from the scalp potentials. The method for determining the optimum regularization parameter, which can be applied for parametric inverse techniques, is also discussed. Results: Human visual evoked potential experiment was carried out to examine the performance of the proposed restoration method. The parametric projection filter gave more localized inverse solution of cortical potential distribution than the truncated SVD and Tikhonov regularization. Conclusion: The present simulation results suggest that incorporation of information on the noise covariance allows better estimation of cortical potentials, than inverse solutions without knowledge about the noise covariance, when the correlation between the signal and noise is low.
言語 en
書誌情報 en : Methods of Information in Medicine

巻 43, 号 1, p. 66-69, 発行日 2004
出版者
言語 en
出版者 Schattauer
ISSN
収録物識別子タイプ ISSN
収録物識別子 0026-1270
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA00737631
DOI
識別子タイプ DOI
関連識別子 http://doi.org/10.1055/s-0038-1633837
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
著者版フラグ
値 publisher
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