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-…

Reconstruction of correlated brain activity with adaptive spatial filters in MEG

MA Quraan, D Cheyne - Neuroimage, 2010 - Elsevier
… 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 …

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 …

[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
… time efficient and prone to errors if the seed source is set apriori. … with other relevant source
reconstruction methods we ran … irrelevant activity with 1000 task-unrelated cerebral sources

Beamformer analysis of MEG data

A Hillebrand, GR Barnes - International review of neurobiology, 2005 - Elsevier
source reconstruction approach, beamformingbeamformers provide us with a magic way
to image the brain. However, the methods do bring to light a simple and surprisingly successful

[HTML][HTML] Comparison of beamformer implementations for MEG source localization

A Jaiswal, J Nenonen, M Stenroos, A Gramfort… - NeuroImage, 2020 - Elsevier
source imaging estimate source distributions that reconstruct (… noise covariance, and the
effective number of sensors (rank) … However, pathological brain activity may produce high SNR, …

[HTML][HTML] A unified view on beamformers for M/EEG source reconstruction

BU Westner, SS Dalal, A Gramfort, V Litvak, JC Mosher… - Neuroimage, 2022 - Elsevier
… 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, …

Localization of coherent sources by simultaneous MEG and EEG beamformer

JH Hong, M Ahn, K Kim, SC Jun - Medical & biological engineering & …, 2013 - Springer
brain sources of neuroscientists’ interest are coherent (correlated). Even though it was reported
that beamformer is well able to reconstructsources in the designated region effectively. …

MEG beamforming using Bayesian PCA for adaptive data covariance matrix regularization

M Woolrich, L Hunt, A Groves, G Barnes - Neuroimage, 2011 - Elsevier
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

[HTML][HTML] On the potential of a new generation of magnetometers for MEG: a beamformer simulation study

E Boto, R Bowtell, P Krüger, TM Fromhold, PG Morris… - PloS one, 2016 - journals.plos.org
… generated by sources in spatially separate brain locations; this … We examine reconstruction
accuracy of beamforming for … systems the effective characterisation of deep sources relies on …