PERFORM Publications

Keyword search (4,163 papers available)

Title		Authors	PubMed ID
1	Effect of a single dose of lorazepam on resting state functional connectivity in healthy adults	Ferland MC; Wang R; Therrien-Blanchet JM; Remahi S; Côté S; Fréchette AJ; Dang-Vu TT; Liu H; Lepage JF; Théoret H;	40646404 PERFORM
2	Sex-specific effects of intensity and dose of physical activity on BOLD-fMRI cerebrovascular reactivity and cerebral pulsatility	Potvin-Jutras Z; Intzandt B; Mohammadi H; Liu P; Chen JJ; Gauthier CJ;	40079560 SOH
3	Human Auditory-Motor Networks Show Frequency-Specific Phase-Based Coupling in Resting-State MEG	Bedford O; Noly-Gandon A; Ara A; Wiesman AI; Albouy P; Baillet S; Penhune V; Zatorre RJ;	39757971 PSYCHOLOGY
4	Neural correlates of impulsivity in amphetamine use disorder	Kaboodvand N; Shabanpour M; Guterstam J;	38991286 ENCS
5	Validating MEG source imaging of resting state oscillatory patterns with an intracranial EEG atlas	Afnan J; von Ellenrieder N; Lina JM; Pellegrino G; Arcara G; Cai Z; Hedrich T; Abdallah C; Khajehpour H; Frauscher B; Gotman J; Grova C;	37149236 PERFORM
6	Detection of abnormal resting-state networks in individual patients suffering from focal epilepsy: an initial step toward individual connectivity assessment.	Dansereau CL, Bellec P, Lee K, Pittau F, Gotman J, Grova C	25565949 PERFORM
7	Disruption, emergence and lateralization of brain network hubs in mesial temporal lobe epilepsy.	Lee K, Khoo HM, Lina JM, Dubeau F, Gotman J, Grova C	30094158 PERFORM
8	Biomarkers, designs, and interpretations of resting-state fMRI in translational pharmacological research: A review of state-of-the-Art, challenges, and opportunities for studying brain chemistry.	Khalili-Mahani N, Rombouts SA, van Osch MJ, Duff EP, Carbonell F, Nickerson LD, Becerra L, Dahan A, Evans AC, Soucy JP, Wise R, Zijdenbos AP, van Gerven JM	28145075 PERFORM

Title:	Disruption, emergence and lateralization of brain network hubs in mesial temporal lobe epilepsy.
Authors:	Lee K, Khoo HM, Lina JM, Dubeau F, Gotman J, Grova C
Link:	https://www.ncbi.nlm.nih.gov/pubmed/30094158?dopt=Abstract
DOI:	10.1016/j.nicl.2018.06.029
Publication:	NeuroImage. Clinical
Keywords:	Connector hub; Mesial temporal lobe epilepsy; Network regularization; Resting state fMRI; Sparse dictionary learning;
PMID:	30094158	Category:	Neuroimage Clin	Date Added:	2019-06-04
Dept Affiliation:	PERFORM 1 Multimodal Functional Imaging Lab, Department of Biomedical Engineering, McGill University, Duff Medical Building, 3775 Rue University, Montreal, QC H3A 2B4, Canada; Montreal Neurological Institute, McGill University, 3801 Rue University, Montreal, QC H3A 2B4, Canada. Electronic address: kangjoo.lee@mail.mcgill.ca. 2 Montreal Neurological Institute, McGill University, 3801 Rue University, Montreal, QC H3A 2B4, Canada; Department of Neurosurgery, Osaka University, 2-2 Yamadaoka, Suita, Osaka Prefecture, 565-0871, Japan. 3 École de Technologie Supérieure, 1100 Rue Notre-Dame O, Montreal, QC H3C 1K3, Canada; Centre de Recherches Mathématiques, Université de Montréal, Pavillon André-Aisenstadt 2920 Chemin de la tour, Montreal, QC H3T 1J4, Canada. 4 Montreal Neurological Institute, McGill University, 3801 Rue University, Montreal, QC H3A 2B4, Canada. 5 Multimodal Functional Imaging Lab, Department of Biomedical Engineering, McGill University, Duff Medical Building, 3775 Rue University, Montreal, QC H3A 2B4, Canada; Montreal Neurological Institute, McGill University, 3801 Rue University, Montreal, QC H3A 2B4, Canada; Centre de Recherches Mathématiques, Université de Montréal, Pavillon André-Aisenstadt 2920 Chemin de la tour, Montreal, QC H3T 1J4, Canada; Department of Physics and PERFORM Centre, Concordia University, 7200 Rue Sherbrooke St. W, Montreal, QC H4B 1R6, Canada.

Description:

Disruption, emergence and lateralization of brain network hubs in mesial temporal lobe epilepsy.

Neuroimage Clin. 2018;20:71-84

Authors: Lee K, Khoo HM, Lina JM, Dubeau F, Gotman J, Grova C

Abstract

Hubs of brain networks are brain regions exhibiting denser connections than others, promoting long-range communication. Studies suggested the reorganization of hubs in epilepsy. The patterns of connector hub abnormalities specific to mesial temporal lobe epilepsy (mTLE) are unclear. We wish to quantify connector hub abnormalities in mTLE and identify epilepsy-related resting state networks involving abnormal connector hubs. A recently developed sparsity-based analysis of reliable k-hubness (SPARK) allowed us to address this question by using resting state functional MRI in 20 mTLE patients and 17 healthy controls. Handling the multicollinearity of functional networks, SPARK measures a new metric of hubness by counting the number (k) of networks involved in each voxel, and identifies which networks are actually associated to each connector hub. This measure provides new information about the network architecture involving connector hubs and a realistic range of k-hubness. We quantified the disruption and emergence of connector hubs in individual epileptic subjects and assessed the lateralization of networks involving connector hubs. In mTLE, we found pathological disruptions of normal connector hubs in the mTL and within the default mode network. Right mTLE had remarkably higher emergence of new connector hubs in the mTL than left mTLE. Different patterns of lateralization of the salience network involving the abnormal hippocampus were found in right versus left mTLE. The temporal, cerebellar, default mode, subcortical and motor networks also contributed to the lateralization of hippocampal networks. We finally observed an asymmetrical connector hub reorganization and overall regularization of epilepsy-related resting state networks in mTLE, characterized by the disruption of distant connections and the emergence of local connections.

PMID: 30094158 [PubMed - indexed for MEDLINE]

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