A novel adaptive beamformer for MEG source reconstruction effective when large background brain activities exist
K Sekihara, KE Hild… - IEEE Transactions on …, 2006 - ieeexplore.ieee.org
… the adaptive beamformers. We show in Section III that the background brain activity can
cause a significant reduction in the source intensity and severe spatial blur in adaptive-…
cause a significant reduction in the source intensity and severe spatial blur in adaptive-…
Reconstruction of correlated brain activity with adaptive spatial filters in MEG
… as an effective method for the localization of brain activity from … Only small differences
exist among various beamforming … of beamformers in the presence of correlated sources, in …
exist among various beamforming … of beamformers in the presence of correlated sources, in …
[HTML][HTML] A unified view on beamformers for M/EEG source reconstruction
… academic open source software packages for MEG analysis (… The successful estimation of
source activity using beamformers … to obtain a whole brain estimate of source time courses, …
source activity using beamformers … to obtain a whole brain estimate of source time courses, …
[HTML][HTML] Modified covariance beamformer for solving MEG inverse problem in the environment with correlated sources
A Kuznetsova, Y Nurislamova, A Ossadtchi - NeuroImage, 2021 - Elsevier
… To reconstruct activity via vector LCMV beamformer from the … efficient and prone to errors if
the seed source is set apriori. … of activity across all N sources represented in the whole brain …
the seed source is set apriori. … of activity across all N sources represented in the whole brain …
Reconstructing spatio-temporal activities of neural sources using an MEG vector beamformer technique
K Sekihara, SS Nagarajan, D Poeppel… - IEEE transactions on …, 2001 - ieeexplore.ieee.org
… brain dynamics [2]. Toward this goal, a number of algorithms for … ical experiments verify the
effectiveness of the proposed beam- … Three signal sources were assumed to exist on a plane …
effectiveness of the proposed beam- … Three signal sources were assumed to exist on a plane …
[HTML][HTML] Comparison of beamformer implementations for MEG source localization
… source imaging estimate source distributions that reconstruct (… noise covariance, and the
effective number of sensors (rank) … However, pathological brain activity may produce high SNR, …
effective number of sensors (rank) … However, pathological brain activity may produce high SNR, …
[HTML][HTML] Hierarchical multiscale Bayesian algorithm for robust MEG/EEG source reconstruction
C Cai, K Sekihara, SS Nagarajan - NeuroImage, 2018 - Elsevier
… to correlated brain activity present in real MEG and EEG data … , there are still no efficient
source reconstruction algorithms. … cortical activity really impacts the performance of Beamformer. …
source reconstruction algorithms. … cortical activity really impacts the performance of Beamformer. …
Beamformer analysis of MEG data
A Hillebrand, GR Barnes - International review of neurobiology, 2005 - Elsevier
… source reconstruction approach, beamforming… beamformers provide us with a magic way
to image the brain. However, the methods do bring to light a simple and surprisingly successful …
to image the brain. However, the methods do bring to light a simple and surprisingly successful …
MEG beamforming using Bayesian PCA for adaptive data covariance matrix regularization
… brain image of the brain's activity. However, the sensitivity of the … be small and that
component will effectively not be retained. The … source time course and the beamformer-reconstructed …
component will effectively not be retained. The … source time course and the beamformer-reconstructed …
Application of multi-source minimum variance beamformers for reconstruction of correlated neural activity
A Moiseev, JM Gaspar, JA Schneider, AT Herdman - NeuroImage, 2011 - Elsevier
… Linearly constrained minimum variance beamformers are highly effective for analysis of …
(MEG) these adaptive spatial filters reconstruct signals from a given brain location using the …
(MEG) these adaptive spatial filters reconstruct signals from a given brain location using the …