지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
The present study introduces a new cortical patch-based source model for EEG/MEG cortical source imaging to consider anatomical constraints more precisely. Conventional source models for EEG/MEG cortical source imaging have used coarse cortical surface mesh or sampled small number of vertices from fine surface mesh, and thus they failed to utilize full anatomical information which nowadays we can get with sub-millimeter modeling accuracy. Conventional ones placed a single dipolar source on each cortical patch and estimated its intensity by means of various inverse algorithms; whereas the suggested cortical patch-based model integrates whole cortical area to construct lead field matrix and estimates current density that is assumed to be constant in each cortical patch. We applied the proposed and conventional models to realistic EEG data and compared the results quantitatively. The quantitative comparisons showed that the proposed model can provide more precise spatial descriptions of neuronal source distribution.
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참고문헌 (31)
참고문헌 신청
[학술지(정기간행물)]
/ 1987 / Electric dipole tracing in the brain by means of the boun- dary element method and its accuracy 34 : 406 ~ 414
/ 1989 / Realistic conductivity geometry model of the human head for interpretation of neuromagnetic data 36 : 165 ~ 171
/ 1993 / Improved localization of cortical activity by combining EEG and MEG with MRI surface recons- truction: a linear approach 5 : 162 ~ 176
/ 1995 / Neuromagnetic imaging with FOCUSS: a recursive weighted minimum norm algorithm 95 : 231 ~ 251
/ 1987 / Electric dipole tracing in the brain by means of the boun- dary element method and its accuracy 34 : 406 ~ 414
/ 1989 / Realistic conductivity geometry model of the human head for interpretation of neuromagnetic data 36 : 165 ~ 171
/ 1993 / Improved localization of cortical activity by combining EEG and MEG with MRI surface recons- truction: a linear approach 5 : 162 ~ 176
/ 1995 / Neuromagnetic imaging with FOCUSS: a recursive weighted minimum norm algorithm 95 : 231 ~ 251
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