Results 61 to 70 of about 933,034 (232)
eLife, 2021 Pupil dynamics serve as a physiological indicator of cognitive processes and arousal states of the brain across a diverse range of behavioral experiments. Pupil diameter changes reflect brain state fluctuations driven by neuromodulatory systems.
Filip Sobczak +3 more
doaj +1 more source
Epilepsia, 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
Robust brain parcellation using sparse representation on resting-state fMRI. [PDF]
, 2014 Resting-state fMRI (rs-fMRI) has been widely used to segregate the brain into individual modules based on the presence of distinct connectivity patterns. Many parcellation methods have been proposed for brain parcellation using rs-fMRI, but their results
Cirong Liu +21 more
core +1 more source
GSDGM files generated by human connectome project s500 rs-fMRI (CONN atlas 132 ROIs) data
, 2022 Group Surrogate Data Generating Model (GSDGM) dataset generated by human connectome project s500 rs-fMRI (CONN atlas 132 ROIs ...
Okuno, Takuto
core +1 more source
Absence seizures: Update on signaling mechanisms and networks
Epilepsia Open, EarlyView.Abstract Absence seizures (AS) are a hallmark of genetic generalized epilepsies (GGE), characterized by brief episodes of impaired consciousness accompanied by electroencephalographic spike‐and‐wave discharges (SWDs). Traditionally attributed to cortico‐thalamo‐cortical (CTC) dysrhythmia, emerging evidence suggests a more intricate pathophysiological ...
Ozlem Akman, Filiz Onat
wiley +1 more source
Boosting BOLD fMRI by K-Space density weighted echo planar imaging [PDF]
, 2013 Functional magnetic resonance imaging (fMRI) has become a powerful and influential method to non-invasively study neuronal brain activity. For this purpose, the blood oxygenation level-dependent (BOLD) effect is most widely used. T2* weighted echo planar
Andreas J Bartsch +21 more
core +2 more sources
Characterization of cognitive function in survivors of diffuse gliomas using resting-state functional MRI (rs-fMRI) [PDF]
, 2021 As treatments for diffuse gliomas have advanced, survival for patients with gliomas has also increased. However, there remains limited knowledge on the relationships between brain connectivity and the lasting changes to cognitive function that glioma ...
Raymond, Catalina +21 more
core +1 more source
Frontiers in Neuroscience, 2017 The resting-state fMRI (rs-fMRI) signal is affected by a variety of low-frequency physiological phenomena, including variations in cardiac-rate (CRV), respiratory-volume (RVT), and end-tidal CO2 (PETCO2). While these effects have become better understood
Ali M. Golestani +5 more
doaj +1 more source
Reproducibility and Temporal Structure in Weekly Resting-State fMRI over a Period of 3.5 Years. [PDF]
PLoS ONE, 2015 Resting-state functional MRI (rs-fMRI) permits study of the brain's functional networks without requiring participants to perform tasks. Robust changes in such resting state networks (RSNs) have been observed in neurologic disorders, and rs-fMRI outcome ...
Ann S Choe +8 more
doaj +1 more source
iNew Medicine, EarlyView.ABSTRACT Objective Behavioral and psychological symptoms of dementia (BPSD) are highly prevalent in Alzheimer’s disease (AD), but the underlying mechanisms are unclear. This study aims to elucidate the neuropathological mechanisms underlying BPSD by investigating gray matter volume (GMV) and brain connectivity in AD patients with and without BPSD ...
Xuerui Pang +8 more
wiley +1 more source