Scale-free and multifractal time dynamics of fMRI signals during rest and task

P Ciuciu, G Varoquaux, P Abry, S Sadaghiani… - Frontiers in …, 2012 - frontiersin.org
Scaling temporal dynamics in functional MRI (fMRI) signals have been evidenced for a
decade as intrinsic characteristics of ongoing brain activity (Zarahn et al.,). Recently, scaling …

[图书][B] Handbook of neuroimaging data analysis

H Ombao, M Lindquist, W Thompson, J Aston - 2016 - taylorfrancis.com
This book explores various state-of-the-art aspects behind the statistical analysis of
neuroimaging data. It examines the development of novel statistical approaches to model …

A wavelet-based regularized reconstruction algorithm for SENSE parallel MRI with applications to neuroimaging

L Chaâri, JC Pesquet, A Benazza-Benyahia… - Medical image …, 2011 - Elsevier
To reduce scanning time and/or improve spatial/temporal resolution in some Magnetic
Resonance Imaging (MRI) applications, parallel MRI acquisition techniques with multiple …

Spatially adaptive mixture modeling for analysis of fMRI time series

T Vincent, L Risser, P Ciuciu - IEEE transactions on medical …, 2010 - ieeexplore.ieee.org
Within-subject analysis in fMRI essentially addresses two problems, the detection of brain
regions eliciting evoked activity and the estimation of the underlying dynamics. In Makni …

A fully Bayesian approach to the parcel-based detection-estimation of brain activity in fMRI

S Makni, J Idier, T Vincent, B Thirion… - Neuroimage, 2008 - Elsevier
Within-subject analysis in fMRI essentially addresses two problems, ie, the detection of
activated brain regions in response to an experimental task and the estimation of the …

Fast joint detection-estimation of evoked brain activity in event-related fMRI using a variational approach

L Chaari, T Vincent, F Forbes, M Dojat… - IEEE transactions on …, 2012 - ieeexplore.ieee.org
In standard within-subject analyses of event-related functional magnetic resonance imaging
(fMRI) data, two steps are usually performed separately: detection of brain activity and …

Activelets: Wavelets for sparse representation of hemodynamic responses

I Khalidov, J Fadili, F Lazeyras, D Van De Ville… - Signal processing, 2011 - Elsevier
We propose a new framework to extract the activity-related component in the BOLD
functional magnetic resonance imaging (fMRI) signal. As opposed to traditional fMRI signal …

Data-driven HRF estimation for encoding and decoding models

F Pedregosa, M Eickenberg, P Ciuciu, B Thirion… - NeuroImage, 2015 - Elsevier
Despite the common usage of a canonical, data-independent, hemodynamic response
function (HRF), it is known that the shape of the HRF varies across brain regions and …

Group-level impacts of within-and between-subject hemodynamic variability in fMRI

S Badillo, T Vincent, P Ciuciu - Neuroimage, 2013 - Elsevier
Inter-subject fMRI analyses have specific issues regarding the reliability of the results
concerning both the detection of brain activation patterns and the estimation of the …

A scalable multi-resolution spatio-temporal model for brain activation and connectivity in fMRI data

S Castruccio, H Ombao, MG Genton - Biometrics, 2018 - academic.oup.com
Summary Functional Magnetic Resonance Imaging (fMRI) is a primary modality for studying
brain activity. Modeling spatial dependence of imaging data at different spatial scales is one …