Results 1 to 10 of about 375,499 (256)

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

Functional MRI of the kidneys [PDF]

open access: yesJournal of Magnetic Resonance Imaging, 2013
AbstractRenal function is characterized by different physiologic aspects, including perfusion, glomerular filtration, interstitial diffusion, and tissue oxygenation. Magnetic resonance imaging (MRI) shows great promise in assessing these renal tissue characteristics noninvasively.
Jeff L, Zhang   +3 more
openaire   +2 more sources

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

Functional MRI at the crossroads [PDF]

open access: yesInternational Journal of Psychophysiology, 2009
Since the observation of the blood oxygenation level dependent (BOLD) effect on measured MR signal in the brain, functional magnetic resonance imaging (fMRI) has rapidly become the tool of choice for exploring brain function in cognitive neuroscience.
John Darrell, Van Horn   +1 more
openaire   +2 more sources

Optogenetic Functional MRI [PDF]

open access: yesJournal of Visualized Experiments, 2016
The investigation of the functional connectivity of precise neural circuits across the entire intact brain can be achieved through optogenetic functional magnetic resonance imaging (ofMRI), which is a novel technique that combines the relatively high spatial resolution of high-field fMRI with the precision of optogenetic stimulation.
Lin, Peter   +3 more
openaire   +2 more sources

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

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