Research Topics
| G MarrelecSummaryCountry: France Publications
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Detail Information
Publications
Using partial correlation to enhance structural equation modeling of functional MRI dataGuillaume Marrelec
INSERM, U678, F 75013 Paris, France
Magn Reson Imaging 25:1181-9. 2007....
Unsupervised robust nonparametric estimation of the hemodynamic response function for any fMRI experimentPhilippe Ciuciu
SHFJ CEA INSERM U562, 91401 Orsay, France
IEEE Trans Med Imaging 22:1235-51. 2003..The proposed unsupervised approach is validated on both synthetic and real fMRI data, the latter originating from a speech perception experiment...
Estimation of the hemodynamic response in event-related functional MRI: Bayesian networks as a framework for efficient Bayesian modeling and inferenceGuillaume Marrelec
INSERM U494, , , 75634 Paris Cedex 13, France
IEEE Trans Med Imaging 23:959-67. 2004..We finally apply this novel technique on both simulations and real data...
Partial correlation for functional brain interactivity investigation in functional MRIGuillaume Marrelec
INSERM U678, Paris F 75013, France
Neuroimage 32:228-37. 2006..We demonstrate the interest of this approach on real data...
Exploring large-scale brain networks in functional MRIGuillaume Marrelec
Universite de Montreal, MIC UNF, Montreal, Canada H3W 1W5
J Physiol Paris 100:171-81. 2006....
Assessing the influence of different ROI selection strategies on functional connectivity analyses of fMRI data acquired during steady-state conditionsGuillaume Marrelec
U678, INSERM, Paris, France
PLoS ONE 6:e14788. 2011....
Regions, systems, and the brain: hierarchical measures of functional integration in fMRIGuillaume Marrelec
INSERM, U678, Paris F 75013, France
Med Image Anal 12:484-96. 2008..We apply this method to fMRI datasets from patients with low-grade glioma and show how it can efficiently extract information related to both intra- and interhemispheric reorganization induced by lesional brain plasticity...
Large-scale neural model validation of partial correlation analysis for effective connectivity investigation in functional MRIG Marrelec
INSERM, U678, CHU Pitie Salpetriere, Paris F 75013, France
Hum Brain Mapp 30:941-50. 2009..Our findings thus provide a strong validation for the partial correlation method...
Estimation of the Hemodynamic Response Function in event-related functional MRI: directed acyclic graphs for a general Bayesian inference frameworkGuillaume Marrelec
INSERM U494
Inf Process Med Imaging 18:635-46. 2003..We finally apply this novel technique on both simulations and real data...
Symmetrical event-related EEG/fMRI information fusion in a variational Bayesian frameworkJean Daunizeau
Wellcome Department of Imaging Neuroscience, London, UK INSERM U678, Paris F 75013, France
Neuroimage 36:69-87. 2007..We apply the method on EEG/fMRI recordings from a patient with epilepsy, in order to identify brain areas involved during the generation of epileptic spikes. The results are validated using intracranial EEG measurements...
Robust Bayesian estimation of the hemodynamic response function in event-related BOLD fMRI using basic physiological informationGuillaume Marrelec
Institut National de la Santé et de la Recherche Médicale U494, Paris, France
Hum Brain Mapp 19:1-17. 2003..As suspected, the regions selected from highly discriminating activation maps resulting from the method exhibit a certain inter-regional homogeneity in term of HRF shape, as well as noticeable inter-regional differences...
Dynamics of motor-related functional integration during motor sequence learningDavid Coynel
INSERM and UPMC Univ Paris 06, UMR S 678 Laboratoire d Imagerie Fonctionnelle, CHU Pitie Salpetriere, 91 Boulevard de l Hopital, Paris, France
Neuroimage 49:759-66. 2010..These findings are in line with the hypothesis that information is transferred from the associative/premotor circuit to the sensorimotor circuit during the course of motor learning...
A nonlinear identification method to study effective connectivity in functional MRIXingfeng Li
INSERM, UPMC Univ Paris 06, UMR_S 678, Laboratoire d Imagerie Fonctionnelle, and LINeM, GHU Pitié Salpêtrière, 91 Bd de l Hopital, F 75634 Paris Cedex 13, France
Med Image Anal 14:30-8. 2010..We compared this approach with a linear method and applied it to the human visual cortex network. Results show that this method can be used to model nonlinear interaction between different regions for fMRI data...
An enhanced voxel-based morphometry method to investigate structural changes: application to Alzheimer's diseaseXingfeng Li
Laboratoire d Imagerie Fonctionnelle, and LINeM, GHU Pitié Salpêtrière, INSERM, UPMC Univ Paris 06, UMR_S 678, 91 Bd de l Hopital, 75634, Paris, Cedex 13, France
Neuroradiology 52:203-13. 2010....
The precuneus/posterior cingulate cortex plays a pivotal role in the default mode network: Evidence from a partial correlation network analysisPeter Fransson
MR Research Center, Department of Clinical Neuroscience, Stockholm Brain Institute, Karolinska Institute, Stockholm, Sweden
Neuroimage 42:1178-84. 2008..The suggested pivotal role of the precuneus/posterior cingulate cortex in the default mode network is discussed...
