Revisiting correlation-based functional connectivity and its relationship with structural connectivity

R Liégeois, A Santos, V Matta, D Van De Ville… - Network …, 2020 - direct.mit.edu
Patterns of brain structural connectivity (SC) and functional connectivity (FC) are known to
be related. In SC-FC comparisons, FC has classically been evaluated from correlations …

Dynamic mode decomposition of resting-state and task fMRI

J Casorso, X Kong, W Chi, D Van De Ville, BTT Yeo… - NeuroImage, 2019 - Elsevier
Component analysis is a powerful tool to identify dominant patterns of interactions in
multivariate datasets. In the context of fMRI data, methods such as principal component …

[HTML][HTML] Multivariate semi-blind deconvolution of fMRI time series

H Cherkaoui, T Moreau, A Halimi, C Leroy, P Ciuciu - NeuroImage, 2021 - Elsevier
Whole brain estimation of the haemodynamic response function (HRF) in functional
magnetic resonance imaging (fMRI) is critical to get insight on the global status of the …

A deconvolution algorithm for multi-echo functional MRI: Multi-echo Sparse Paradigm Free Mapping

C Caballero-Gaudes, S Moia, P Panwar, PA Bandettini… - Neuroimage, 2019 - Elsevier
This work introduces a novel algorithm for deconvolution of the BOLD signal in multi-echo
fMRI data: Multi-echo Sparse Paradigm Free Mapping (ME-SPFM). Assuming a linear …

Whole-brain multivariate hemodynamic deconvolution for functional MRI with stability selection

E Uruñuela, J Gonzalez-Castillo, C Zheng… - Medical Image …, 2024 - Elsevier
Conventionally, analysis of functional MRI (fMRI) data relies on available information about
the experimental paradigm to establish hypothesized models of brain activity. However, this …

Hemodynamic deconvolution demystified: Sparsity-driven regularization at work

E Uruñuela, TAW Bolton, D Van De Ville… - arXiv preprint arXiv …, 2021 - arxiv.org
Deconvolution of the hemodynamic response is an important step to access short timescales
of brain activity recorded by functional magnetic resonance imaging (fMRI). Albeit …

Joint estimation of activity signal and HRF in fMRI using fused LASSO

P Aggarwal, A Gupta, A Garg - 2015 IEEE Global Conference …, 2015 - ieeexplore.ieee.org
In this paper, we propose a novel voxel-based method for joint estimation of underlying
activity signal and hemodynamic response function (HRF) in functional magnetic resonance …

Method and system to predict and interpret conceptual knowledge in the brain

R Bhattacharyya, J Benvenuto, ME Phillips… - US Patent …, 2020 - Google Patents
Described is a system for explaining how the human brain represents conceptual
knowledge. A semantic model is developed, and a behavioral exam is performed to assess …

Whole-brain multivariate hemodynamic deconvolution for multi-echo fMRI with stability selection

E Uruñuela, J Gonzalez-Castillo, C Zheng, P Bandettini… - bioRxiv, 2022 - biorxiv.org
Conventionally, analysis of functional MRI (fMRI) data relies on available information about
the experimental paradigm to establish hypothesized models of brain activity. However, this …

The generalized lasso is reducible to a subspace constrained lasso

H Xu, DJ Eis, PJ Ramadge - 2013 IEEE International …, 2013 - ieeexplore.ieee.org
We investigate connections between the generalized lasso and the standard lasso problem.
We show by an efficient direct construction, that the generalized lasso problem is reducible …