TY - GEN
T1 - Line-source modeling and estimation with magnetoencephalography
AU - Yetik, Imam Şamil
AU - Nehorai, Arye
AU - Muravchik, Carlos H.
AU - Haueisen, Jens
PY - 2004
Y1 - 2004
N2 - We propose a number of line-source models for magnetoencephalography (MEG). We derive forward solutions, maximum likelihood (ML) estimates, and Cramér-Rao bound (CRB) expressions for the unknown parameters. We also apply our methods to real MEG data, the N20 response after electric stimulation of the median nerve, known to be an extended source. It is observed that the line-source models represent the N20 generator better than the focal model.
AB - We propose a number of line-source models for magnetoencephalography (MEG). We derive forward solutions, maximum likelihood (ML) estimates, and Cramér-Rao bound (CRB) expressions for the unknown parameters. We also apply our methods to real MEG data, the N20 response after electric stimulation of the median nerve, known to be an extended source. It is observed that the line-source models represent the N20 generator better than the focal model.
UR - http://www.scopus.com/inward/record.url?scp=17144411184&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:17144411184
SN - 0780383885
T3 - 2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano
SP - 1339
EP - 1342
BT - 2004 2nd IEEE International Symposium on Biomedical Imaging
T2 - 2004 2nd IEEE International Symposium on Biomedical Imaging: Macro to Nano
Y2 - 15 April 2004 through 18 April 2004
ER -