Results 101 to 110 of about 17,412,001 (255)

Complementary predictive value of electromagnetic source imaging and hemodynamic responses in epilepsy surgery: A quantitative spatial analysis

open access: yesEpilepsia, EarlyView.
Abstract Objective Accurate presurgical evaluation should assess not only the location but also the spatial extent of epileptic activity relative to the surgical cavity, a practical approximation of the epileptogenic zone. We evaluated how electromagnetic source imaging (EMSI) and hemodynamic responses to epileptic discharges relate to the surgical ...
Chifaou Abdallah   +13 more
wiley   +1 more source

Ventral anterior thalamic dysfunction distinguishes seizure generalization in temporal lobe epilepsy

open access: yesEpilepsia, EarlyView.
Abstract Objective Focal‐to‐bilateral tonic–clonic seizures (FBTCS) in temporal lobe epilepsy (TLE) involve thalamocortical networks, yet the functional integrity and role of specific thalamic subregions in seizure generalization remain unclear. In this cross‐sectional study, we investigated whether thalamic subregion functional connectivity patterns ...
Stacy N. Hudgins   +3 more
wiley   +1 more source

A spatially constrained low-rank matrix factorization for the functional parcellation of the brain

open access: yes, 2014
We propose a new matrix recovery framework to partition brain activity using time series of resting-state functional Magnetic Resonance Imaging (fMRI). Spatial clusters are obtained with a new low-rank factorization algorithm that offers the ability to ...
Blumensath, T., Benichoux, A.
core   +1 more source

Visual dorsal stream is associated with Chinese reading skills: A resting-state fMRI study

open access: yes, 2016
The present study explored the relationship between visual dorsal stream and Chinese reading by resting-state fMRI technique. We collected the resting-state brain activities and reading skills of Chinese-speaking adult readers.
Bi, Hong-Yan   +5 more
core   +1 more source

Pathological hippocampal–cortical hypersynchronization disrupts memory in temporal lobe epilepsy: A multimodal intracranial electroencephalographic–functional magnetic resonance imaging study

open access: yesEpilepsia, EarlyView.
Abstract Objective Memory impairment is a common comorbidity in temporal lobe epilepsy (TLE) and is thought to arise from hippocampal dysfunction and disrupted interactions within a distributed memory network involving medial temporal, frontal, and parietal cortical regions.
Ruxue Gong   +8 more
wiley   +1 more source

Resting-state functional connectivity of orthographic networks in acquired dysgraphia

open access: yesFrontiers in Psychology, 2015
Introduction. While task-based fMRI has been used extensively to study the functional neural networks that instantiate cognitive functions, there is increasing interest in analyzing the activity of the brain while it is not performing a task – in the ...
Gali Ellenblum
doaj   +1 more source

Cross‐material memory prediction: Influence of preoperative visual memory on postoperative verbal memory change after left anterior temporal lobe resection in people with epilepsy

open access: yesEpilepsia, EarlyView.
Abstract Objective Left anterior temporal lobe resection (TLR) in people with epilepsy is associated with a high risk of postoperative verbal memory decline. Whereas substantial evidence supports the role of preoperative verbal memory in predicting postoperative verbal memory change, the potential contribution of preoperative visual memory has been ...
Lea Marie Reisch   +6 more
wiley   +1 more source

Integration of resting state functional MRI into clinical practice - A large single institution experience.

open access: yesPLoS ONE, 2018
Functional magnetic resonance imaging (fMRI) is an important tool for pre-surgical evaluation of eloquent cortex. Classic task-based paradigms require patient participation and individual imaging sequence acquisitions for each functional domain that is ...
Eric C Leuthardt   +14 more
doaj   +1 more source

Maintenance and Representation of Mind Wandering during Resting-State fMRI

open access: yes, 2017
International audienceMajor advances in resting-state functional magnetic resonance imaging (fMRI) techniques in the last two decades have provided a tool to better understand the functional organization of the brain both in health and illness.
Kirste, Imke   +13 more
core   +1 more source

Nucleus basalis functional connectivity aberrations in temporal lobe epilepsy and improvements after successful epilepsy surgery

open access: yesEpilepsia, EarlyView.
Abstract Objective Resective surgery achieves seizure freedom in approximately 60%–80% of patients with drug‐resistant temporal lobe epilepsy (TLE), yet the extent to which seizure cessation permits recovery of disrupted functional brain networks remains unclear.
Addison C. Cavender   +15 more
wiley   +1 more source

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