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
Recently, causality analysis of source time series extracted from EEG or MEG signals is becoming of great importance in human brain mapping studies and noninvasive diagnosis of various brain diseases. Two approaches have been widely used for the analyses: one is independent component analysis (ICA), and the other is multiple signal classification (MUSIC). To the best of our knowledge, however, any comparison studies to reveal the difference of the two approaches have not been reported. In the present study, we compared the performance of the two different techniques, ICA and MUSIC, especially focusing on how accurately they can estimate and separate various brain electrical signals such as linear, nonlinear, and chaotic signals without a priori knowledge. Results of the realistic simulation studies, adopting directed transfer function (DTF) and Granger causality (GC) as measures of the accurate extraction of source time series, demonstrated that the MUSIC-based approach is more reliable than the ICA-based approach
목차
등록된 정보가 없습니다.
참고문헌 (19)
참고문헌 신청
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A. K. Liu / 1998 / Spatiotemporal imaging of human brain activity using functional MRI constra- ined magnetoencephalography data: Monte Carlo simulations / Proc. Natl. Acad.
C. I. Hung / 2007 / Blind source separation of concurrent disease-related patterns from EEG in Creutzfeldt-Jakob disease for assisting early diagnosis / Ann. Biomed. Eng 35 (
C. M. Michel / 2004 / EEG source imaging / Clin. Neurop- hysiol 115 (10) : 2195 ~ 2222
C. W. Hesse / 2007 / Tracking and detection of epilepti- form activity in multichannel ictal EEG using signal subspace correlation of seizure source scalp topographies / Med.
A. K. Liu / 1998 / Spatiotemporal imaging of human brain activity using functional MRI constra- ined magnetoencephalography data: Monte Carlo simulations / Proc. Natl. Acad.
C. I. Hung / 2007 / Blind source separation of concurrent disease-related patterns from EEG in Creutzfeldt-Jakob disease for assisting early diagnosis / Ann. Biomed. Eng 35 (
C. M. Michel / 2004 / EEG source imaging / Clin. Neurop- hysiol 115 (10) : 2195 ~ 2222
C. W. Hesse / 2007 / Tracking and detection of epilepti- form activity in multichannel ictal EEG using signal subspace correlation of seizure source scalp topographies / Med.
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