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Cortical Potential Imaging of Brain Electrical Activity by Means of Parametric Projection Filter
http://hdl.handle.net/10191/25909
http://hdl.handle.net/10191/259091e133bb4-6abb-44fa-ba76-19eaf7021b80
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
43_1_66-69.pdf (152.2 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2014-02-28 | |||||
| タイトル | ||||||
| タイトル | Cortical Potential Imaging of Brain Electrical Activity by Means of Parametric Projection Filter | |||||
| 言語 | en | |||||
| 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 | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Hori, J.
× Hori, J.× Lian, J.× 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 |
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| 出版者 | ||||||
| 出版者 | Schattauer | |||||
| 言語 | en | |||||
| 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 | |||||
