@techreport{oai:niigata-u.repo.nii.ac.jp:00033353, author = {堀, 潤一}, month = {May}, note = {In the present study, we explore suitable spatio-temporal filters for inverse estimation of an equivalent dipole-layer distribution from the scalp EEG for imaging o brain electric sources. We propose a time-varying parametric projection filter (tPPF) for the spatio-temporal EEG analysis. The performance of this tPPF algorithm was evaluated by computer simulation studies. An inhomogeneous three-concentric-spheres model was used in the present simulation study to represent the head volume conductor. An equivalent dipole layer was used to represent equivalently brain electric sources and estimated from the scalp potentials. The tPPF filter was tested to remove time-varying noise such as instantaneous artifacts caused by eyes-blink. The present simulation results indicate that the proposed time-variant tPPF method provides enhanced performance in rejecting time-varying noise, as compared with the time-invariant parametric projection filter., 平成13年度~平成15年度科学研究費補助金(基盤研究(B)(2))研究成果報告書(課題番号:13480291), 添付論文の一部は著作権上省略}, title = {仮想ダイポールレイヤーを用いた時空間高精度脳機能マッピング}, year = {2004} }