An introduction to MEG connectivity measurements

MJ Brookes, MW Woolrich, D Price - … : From Signals to Dynamic Cortical …, 2019 - Springer
… Using brain imaging techniques such as MRI, fMRI, and MEG… , functional, and effective.
Structural connectivity can have … an adaptive spatial filter (beamformer) to reconstruct source

Characterizing hippocampal dynamics with MEG: A systematic review and evidence‐based guidelines

E Ruzich, M Crespo‐García, SS Dalal… - Human brain …, 2019 - Wiley Online Library
… when applying beamformers because these adaptive spatial … spike activity or the use of
single dipole source reconstruction … whether MEG methods can be used to effectively localize …

[HTML][HTML] Multi-channel whole-head OPM-MEG: Helmet design and a comparison with a conventional system

RM Hill, E Boto, M Rea, N Holmes, J Leggett, LA Coles… - NeuroImage, 2020 - Elsevier
… Because MEG offers direct inference on brain … field data, and source-space (beamformer-reconstructed)
functional images, … estimate the effectiveness of each of our three MEG systems: …

[HTML][HTML] Theoretical advantages of a triaxial optically pumped magnetometer magnetoencephalography system

MJ Brookes, E Boto, M Rea, V Shah, J Osborne… - NeuroImage, 2021 - Elsevier
… be optimised for effective source reconstruction. We show that … the beamformer estimate
( q θ ^ ( t ) ) and the true sourceMEG data contain activity from a single source in the brain, …

Bayesian algorithms for joint estimation of brain activity and noise in electromagnetic imaging

C Cai, H Kang, A Hashemi, D Chen… - … on Medical Imaging, 2022 - ieeexplore.ieee.org
… , and are computationally efficient with fast convergence in … variance adaptive beamforming
[8], [9], and other variants of … to jointly estimate the brain activity and noise with MEG/EEG data…

[HTML][HTML] Multi-dimensional dynamics of human electromagnetic brain activity

T Kida, E Tanaka, R Kakigi - Frontiers in human neuroscience, 2016 - frontiersin.org
… discuss a relatively novel approach used in MEG/EEG studies … to quantify functional and
effective connectivities for MEG/EEG … source-level coherence with a two-dipole beamforming

[HTML][HTML] A multiscale brain network model links Alzheimer's disease-mediated neuronal hyperactivity to large-scale oscillatory slowing

AM van Nifterick, AA Gouw, RE van Kesteren… - Alzheimer's research & …, 2022 - Springer
large-scale magnetoencephalography (MEG) activity in human early-stage AD patients. …
Source reconstruction was performed by an atlas-based beamforming approach [39]. Sensor …

Probabilistic structure learning for EEG/MEG source imaging with hierarchical graph priors

F Liu, L Wang, Y Lou, RC Li… - IEEE transactions on …, 2020 - ieeexplore.ieee.org
… To effectively deal with noise while maintaining flexibility and … (LCMV) beamformer is a type
of adaptive spatial filter that localizes … We illustrate the results of source reconstruction under …

[HTML][HTML] Single or multiple frequency generators in on-going brain activity: A mechanistic whole-brain model of empirical MEG data

G Deco, J Cabral, MW Woolrich, ABA Stevner… - Neuroimage, 2017 - Elsevier
… of beamformers over other source-reconstruction strategies … high CCD values, indicating
the existence of periods of high … A successful model of resting-state MEG data must generate …

Electroencephalography source connectivity: aiming for high resolution of brain networks in time and space

M Hassan, F Wendling - IEEE Signal Processing Magazine, 2018 - ieeexplore.ieee.org
… on a minimum norm estimate and a beamformer filter. … same team also applied MEG source
connectivity to 70 Parkinson’… An efficient solution, described in this review, is to compute the …