Title :
A mathematical model for the spatio-temporal covariance of the background noise in MEG/EEG recordings
Author :
de Munck, J.C. ; Bijma, F.
Author_Institution :
MEG center VUmc, Amsterdam, Netherlands
Abstract :
Evoked magnetic and electric fields are contaminated with correlated background noise. When performing statistical tests or applying source localization on the basis of these signals the correlation of the background noise should be accounted for. Due to the large amounts of data this is not straightforward and mathematical models are needed describing the noise. In this paper such a model is derived.
Keywords :
brain models; electroencephalography; magnetoencephalography; noise; EEG recordings; MEG recordings; background noise; electrodiagnostics; mathematical model; mathematical models; spatiotemporal covariance; statistical tests; Background noise; Cost function; Covariance matrix; Electroencephalography; Gaussian noise; Magnetic noise; Magnetic recording; Mathematical model; Maximum likelihood estimation; Performance evaluation;
Conference_Titel :
Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint
Print_ISBN :
0-7803-7612-9
DOI :
10.1109/IEMBS.2002.1053122
