ArticleCerebral cortex (New York, N.Y. : 1991)2022
Characterization of resting functional MRI activity alterations across epileptic foci and networks.
Article in Cerebral cortex (New York, N.Y. : 1991), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 14 citations in OpenAlex.
- Integrating multivariate resting-state fMRI features to localize epileptic networks in common childhood epilepsy.Epilepsia · 2026Article
- Functional and Metabolic Abnormalities in Primary Visual Cortex and Frontal Eye Fields and Candidate Biomarkers of Acute Acquired Comitant Esotropia.Investigative ophthalmology & visual science · 2026Article
- Changes in functional connectivity in relapsing-remitting multiple sclerosis spinal cord measured via region-based and data-driven analyses.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- Quantifying hubness to predict surgical outcomes in epilepsy: Assessing resection-hub alignment in interictal intracranial EEG networks.Epilepsia · 2024Article
- Integration of estimated regional gene expression with neuroimaging and clinical phenotypes at biobank scale.PLoS biology · 2024Article
- Structural disconnection relates to functional changes after temporal lobe epilepsy surgery.Brain : a journal of neurology · 2023Article
- Abnormal brain functional network dynamics in sleep-related hypermotor epilepsy.CNS neuroscience & therapeutics · 2023Article
- Integrating Network Neuroscience Into Epilepsy Care: Progress, Barriers, and Next Steps.Epilepsy currentsReview
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
Brain network alterations have been studied extensively in patients with mesial temporal lobe epilepsy (mTLE) and other focal epilepsies using resting-state functional magnetic resonance imaging (fMRI). However, little has been done to characterize the basic fMRI signal alterations caused by focal epilepsy. Here, we characterize how mTLE affects the fMRI signal in epileptic foci and networks. Resting-state fMRI and diffusion MRI were collected from 47 unilateral mTLE patients and 96 healthy controls. FMRI activity, quantified by amplitude of low-frequency fluctuations, was increased in the epileptic focus and connected regions in mTLE. Evidence for spread of this epileptic fMRI activity was found through linear relationships of regional activity across subjects, the association of these relationships with functional connectivity, and increased activity along white matter tracts. These fMRI activity increases were found to be dependent on the epileptic focus, where the activity was related to disease severity, suggesting the focus to be the origin of these pathological alterations. Furthermore, we found fMRI activity decreases in the default mode network of right mTLE patients with different properties than the activity increases found in the epileptic focus. This work provides insights into basic fMRI signal alterations and their potential spread across networks in focal epilepsy.
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