Results 71 to 80 of about 18,088,910 (254)

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

Correspondence Between Resting-State and Episodic Memory-Task Related Networks in Elderly Subjects

open access: yesFrontiers in Aging Neuroscience, 2018
Resting-state fMRI studies demonstrated temporally synchronous fluctuations in brain activity among ensembles of brain regions, suggesting the existence of intrinsic functional networks.
Lee Simon-Vermot   +11 more
doaj   +1 more source

Resting-State fMRI [PDF]

open access: yes, 2014
Although brain plasticity is greatest in the first few years of life, the brain continues to be shaped by experience throughout adulthood. Advances in fMRI have enabled us to examine the plasticity of large-scale networks using blood oxygen level ...
Guerra-Carrillo, Belén   +2 more
core   +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

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

Ten Key Insights into the Use of Spinal Cord fMRI

open access: yesBrain Sciences, 2018
A comprehensive review of the literature-to-date on functional magnetic resonance imaging (fMRI) of the spinal cord is presented. Spinal fMRI has been shown, over more than two decades of work, to be a reliable tool for detecting neural activity.
Jocelyn M. Powers   +2 more
doaj   +1 more source

Brain‐wide magnetic resonance imaging analysis of neurobehavioral comorbidities in temporal lobe epilepsy

open access: yesEpilepsia, EarlyView.
Abstract Objective In temporal lobe epilepsy (TLE), patients often present with neurobehavioral comorbidities encompassing affective and cognitive difficulties. Whereas the latter have been related to atypical connectivity of mesiotemporal and frontotemporal circuits, the brain basis of affective symptoms remains incompletely understood.
Fatemeh Fadaie   +4 more
wiley   +1 more source

Neurovascular coupling in eye-open-eye-close task and resting state: Spectral correspondence between concurrent EEG and fMRI

open access: yesNeuroImage
Neurovascular coupling serves as an essential neurophysiological mechanism in functional neuroimaging, which is generally presumed to be robust and invariant across different physiological states, encompassing both task engagement and resting state ...
Yi-Chia Kung   +6 more
doaj   +1 more source

Independent component analysis of interictal fMRI in focal epilepsy: comparison with general linear model-based EEG-correlated fMRI [PDF]

open access: yes, 2007
The general linear model (GLM) has been used to analyze simultaneous EEG–fMRI to reveal BOLD changes linked to interictal epileptic discharges (IED) identified on scalp EEG. This approach is ineffective when IED are not evident in the EEG.
Lemieux, L.   +9 more
core   +1 more source

Re‐evaluating impaired consciousness in temporal lobe epilepsy: The role of language dominance and network reorganization

open access: yesEpilepsia, EarlyView.
Abstract Objective Temporal lobe epilepsy (TLE) frequently affects clinically‐classified ictal consciousness, which the 2025 International League Against Epilepsy (ILAE) classification operationalizes through clinical assessment of awareness and responsiveness.
Radheshyam Stepponat   +8 more
wiley   +1 more source

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