Results 1 to 10 of about 660,883 (194)

Effects of sub-threshold transcutaneous auricular vagus nerve stimulation on cerebral blood flow

open access: yesScientific Reports, 2021
Transcutaneous auricular vagus nerve stimulation (taVNS) has shown promise as a non-invasive alternative to vagus nerve stimulation (VNS) with implantable devices, which has been used to treat drug-resistant epilepsy and treatment-resistant depression ...
Conan Chen   +7 more
doaj   +1 more source

Cerebrovascular activity is a major factor in the cerebrospinal fluid flow dynamics

open access: yesNeuroImage, 2022
Cerebrospinal fluid (CSF) provides physical protection to the central nervous system as well as an essential homeostatic environment for the normal functioning of neurons.
Yicun Wang   +6 more
doaj   +1 more source

Autonomic arousals contribute to brain fluid pulsations during sleep

open access: yesNeuroImage, 2022
During sleep, slow waves of neuro-electrical activity engulf the human brain and aid in the consolidation of memories. Recent research suggests that these slow waves may also promote brain health by facilitating the removal of metabolic waste, possibly ...
Dante Picchioni   +6 more
doaj   +1 more source

Magnetization transfer weighted EPI facilitates cortical depth determination in native fMRI space

open access: yesNeuroImage, 2021
The increased availability of ultra-high field scanners provides an opportunity to perform fMRI at sub-millimeter spatial scales and enables in vivo probing of laminar function in the human brain.
Yuhui Chai   +6 more
doaj   +1 more source

Reduced GABA concentration in patients with white matter hyperintensities

open access: yesFrontiers in Neuroscience, 2023
To investigate potential alterations of white matter hyperintensities (WMHs) on J-edited MR spectroscopy (MRS) measures of the primary inhibitory neurotransmitter γ-aminobutyric acid (GABA).
Xin Wang   +8 more
doaj   +1 more source

Altered static and dynamic spontaneous neural activity in patients with ischemic pontine stroke

open access: yesFrontiers in Neuroscience, 2023
ObjectiveThe purpose of the study was to investigate the abnormality both of static spontaneous brain activity and dynamic temporal variances following a pontine infarction.MethodsForty-six patients with chronic left pontine infarction (LPI), thirty-two ...
Xin Wang   +12 more
doaj   +1 more source

Optimising a Simple Fully Convolutional Network for Accurate Brain Age Prediction in the PAC 2019 Challenge

open access: yesFrontiers in Psychiatry, 2021
Brain age prediction from brain MRI scans not only helps improve brain ageing modelling generally, but also provides benchmarks for predictive analysis methods.
Weikang Gong   +7 more
doaj   +1 more source

MRI in multiple myeloma : a pictorial review of diagnostic and post-treatment findings [PDF]

open access: yes, 2016
Magnetic resonance imaging (MRI) is increasingly being used in the diagnostic work-up of patients with multiple myeloma. Since 2014, MRI findings are included in the new diagnostic criteria proposed by the International Myeloma Working Group.
A Baur   +51 more
core   +2 more sources

Local GABA concentration is related to network-level resting functional connectivity

open access: yeseLife, 2014
Anatomically plausible networks of functionally inter-connected regions have been reliably demonstrated at rest, although the neurochemical basis of these ‘resting state networks’ is not well understood.
Charlotte J Stagg   +11 more
doaj   +1 more source

Amplitudes of resting-state functional networks – investigation into their correlates and biophysical properties

open access: yesNeuroImage, 2023
Resting-state fMRI studies have shown that multiple functional networks, which consist of distributed brain regions that share synchronised spontaneous activity, co-exist in the brain.
Soojin Lee   +10 more
doaj   +1 more source

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