Minimizing the distortions in electrophysiological source imaging of cortical oscillatory activity via Spectral Structured Sparse Bayesian Learning

D Paz-Linares, E Gonzalez-Moreira… - Frontiers in …, 2023 - frontiersin.org
Oscillatory processes at all spatial scales and on all frequencies underpin brain function.
Electrophysiological Source Imaging (ESI) is the data-driven brain imaging modality that …

Bottom-up control of leakage in spectral electrophysiological source imaging via structured sparse bayesian learning

E Gonzalez-Moreira, D Paz-Linares… - BioRxiv, 2020 - biorxiv.org
Brain electrical activity in different spectral bands has been associated with diverse
mechanisms underlying Brain function. Deeper reconnoitering of these mechanisms entails …

Bridging M/EEG source imaging and independent component analysis frameworks using biologically inspired sparsity priors

A Ojeda, K Kreutz-Delgado, J Mishra - Neural Computation, 2021 - direct.mit.edu
Electromagnetic source imaging (ESI) and independent component analysis (ICA) are two
popular and apparently dissimilar frameworks for M/EEG analysis. This letter shows that the …

Spatio temporal EEG source imaging with the hierarchical bayesian elastic net and elitist lasso models

D Paz-Linares, M Vega-Hernandez… - Frontiers in …, 2017 - frontiersin.org
The estimation of EEG generating sources constitutes an Inverse Problem (IP) in
Neuroscience. This is an ill-posed problem due to the non-uniqueness of the solution and …

Fast and robust Block-Sparse Bayesian learning for EEG source imaging

A Ojeda, K Kreutz-Delgado, T Mullen - NeuroImage, 2018 - Elsevier
We propose a new Sparse Bayesian Learning (SBL) algorithm that can deliver fast, block-
sparse, and robust solutions to the EEG source imaging (ESI) problem in the presence of …

Improving EEG source localization through spatio-temporal sparse Bayesian learning

A Hashemi, S Haufe - 2018 26th European signal processing …, 2018 - ieeexplore.ieee.org
Sparse Bayesian Learning (SBL) approaches to the EEG inverse problem such as
Champagne have been shown to outperform traditional ℓ 1-norm based methods in terms of …

Conditionally exponential prior in focal near-and far-field EEG source localization via randomized multiresolution scanning (ramus)

J Lahtinen, A Koulouri, A Rezaei… - Journal of Mathematical …, 2022 - Springer
In this paper, we focus on the inverse problem of reconstructing distributional brain activity
with cortical and weakly detectable deep components in non-invasive …

VSSI-GGD: A Variation Sparse EEG Source Imaging Approach Based on Generalized Gaussian Distribution

K Liu, S Peng, C Liang, Z Yu, B Xiao… - … on Neural Systems …, 2024 - ieeexplore.ieee.org
Electroencephalographic (EEG) source imaging (ESI) is a powerful method for studying
brain functions and surgical resection of epileptic foci. However, accurately estimating the …

[HTML][HTML] Empirical Bayesian localization of event-related time-frequency neural activity dynamics

C Cai, L Hinkley, Y Gao, A Hashemi, S Haufe… - NeuroImage, 2022 - Elsevier
Accurate reconstruction of the spatio-temporal dynamics of event-related cortical oscillations
across human brain regions is an important problem in functional brain imaging and human …

A Bayesian framework for unifying data cleaning, source separation and imaging of electroencephalographic signals

A Ojeda, M Klug, K Kreutz-Delgado, K Gramann… - bioRxiv, 2019 - biorxiv.org
Electroencephalographic (EEG) source imaging depends upon sophisticated signal
processing algorithms for data cleaning, source separation, and localization. Typically, these …