Results 11 to 20 of about 728,696 (332)

Prospective frequency and motion correction for edited 1H magnetic resonance spectroscopy

open access: yesNeuroImage, 2021
The major inhibitory neurotransmitter gamma-aminobutyric acid (GABA) and the dominant antioxidant glutathione (GSH) both play a crucial role in brain functioning and are involved in several neurodegenerative and psychiatric diseases.
Anouk Marsman   +4 more
doaj   +1 more source

Functional Magnetic Resonance Imaging Methods [PDF]

open access: yesNeuropsychology Review, 2015
Since its inception in 1992, Functional Magnetic Resonance Imaging (fMRI) has become an indispensible tool for studying cognition in both the healthy and dysfunctional brain. FMRI monitors changes in the oxygenation of brain tissue resulting from altered metabolism consequent to a task-based evoked neural response or from spontaneous fluctuations in ...
Jingyuan E, Chen, Gary H, Glover
openaire   +2 more sources

Avoid or seek light – a randomized crossover fMRI study investigating opposing treatment strategies for photophobia in migraine

open access: yesThe Journal of Headache and Pain, 2022
Background Photophobia, the aberrantly increased sensitivity to light, is a common symptom in migraine patients and light discomfort is frequently found as a trigger for migraine attacks.
Eva Matt   +7 more
doaj   +1 more source

Alterations of degree centrality and functional connectivity in classic trigeminal neuralgia

open access: yesFrontiers in Neuroscience, 2023
ObjectivesRecent neuroimaging studies have indicated a wide range of structural and regional functional alterations in patients with classic trigeminal neuralgia (CTN).
Hao Liu   +18 more
doaj   +1 more source

Does Physical Activity Influence Semantic Memory Activation in Amnestic Mild Cognitive Impairment? [PDF]

open access: yes, 2011
The effect of physical activity (PA) on functional brain activation for semantic memory in amnestic mild cognitive impairment (aMCI) was examined using event-related functional magnetic resonance imaging during fame discrimination.
Antuono, Piero   +10 more
core   +2 more sources

On the reconstruction of magnetic resonance current density images of the human brain: Pitfalls and perspectives

open access: yesNeuroImage, 2021
Magnetic resonance current density imaging (MRCDI) of the human brain aims to reconstruct the current density distribution caused by transcranial electric stimulation from MR-based measurements of the current-induced magnetic fields.
Hasan H. Eroğlu   +6 more
doaj   +1 more source

Tracing of Neuronal Connections in the Human Brain by Magnetic Resonance Imaging in vivo [PDF]

open access: yes, 1990
Axon degeneration after disruption of fibre tracts in the mammalian nervous system is accompanied by myelin breakdown which leads to changes in its magnetic resonance properties.
Bauer, W. M.   +2 more
core   +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

Men fear other men most: Gender specific brain activations in perceiving threat from dynamic faces and bodies. An fMRI study. [PDF]

open access: yes, 2010
We report a functional magnetic resonance imaging experiment showing different activation patterns as a function of threatening signals from facial or bodily expressions and these differed between male and female participants as a function of male and ...
Beatrice de Gelder   +3 more
core   +10 more sources

Medical images modality classification using multi-scale dictionary learning [PDF]

open access: yes, 2014
In this paper, we proposed a method for classification of medical images captured by different sensors (modalities) based on multi-scale wavelet representation using dictionary learning.
C, Krishna Mohan, Mettu, Srinivas
core   +1 more source

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