Results 21 to 30 of about 5,567,921 (295)

Construction and validation of a cerebral white matter hyperintensity probability map of older Koreans

open access: yesNeuroImage: Clinical, 2021
Background and purpose: Although two white matter hyperintensity (WMH) probability maps of healthy older adults already exist, they have several limitations in representing the distribution of WMH in healthy older adults, especially Asian older adults ...
Jun Sung Kim   +13 more
doaj   +1 more source

The Energetics of CNS White Matter [PDF]

open access: yesThe Journal of Neuroscience, 2012
The energetics of CNS white matter are poorly understood. We derive a signaling energy budget for the white matter (based on data from the rodent optic nerve and corpus callosum) which can be compared with previous energy budgets for the gray matter regions of the brain, perform a cost-benefit analysis of the energetics of myelination, and assess ...
Harris, JJ, Attwell, D
openaire   +3 more sources

The effect of N-acetyl-aspartyl-glutamate and N-acetyl-aspartate on white matter oligodendrocytes [PDF]

open access: yes, 2009
Elevations of the levels of N-acetyl-aspartyl-glutamate (NAAG) and N-acetyl-aspartate (NAA) are associated with myelin loss in the leucodystrophies Canavan's disease and Pelizaeus-Merzbacher-like disease. NAAG and NAA can activate and antagonize neuronal
Attwell, D.   +9 more
core   +1 more source

White Matter Regions With Low Microstructure in Young Adults Spatially Coincide With White Matter Hyperintensities in Older Adults

open access: yesFrontiers in Aging Neuroscience, 2019
Microstructural and macrostructural white matter damage occurs frequently with aging, is associated with negative health outcomes, and can be imaged non-invasively as fractional anisotropy (FA) and white matter hyperintensities (WMH), respectively.
Patrick J. Lao   +15 more
doaj   +1 more source

Intracranial electrophysiological and structural basis of BOLD functional connectivity in human brain white matter

open access: yesNature Communications, 2023
While functional MRI (fMRI) studies have mainly focused on gray matter, recent studies have consistently found that blood-oxygenation-level-dependent (BOLD) signals can be reliably detected in white matter, and functional connectivity (FC) has been ...
Yali Huang   +11 more
doaj   +1 more source

Does functional MRI detect activation in white matter?A review of emerging evidence, issues, and future directions

open access: yesFrontiers in Neuroscience, 2014
Functional magnetic resonance imaging (fMRI) is a non-invasive technique that allows for visualization of activated brain regions. Until recently, fMRI studies have focused on gray matter.
Jodie Reanna Gawryluk   +2 more
doaj   +1 more source

Bayesian model selection for pathological neuroimaging data applied to white matter lesion segmentation. [PDF]

open access: yes, 2015
In neuroimaging studies, pathologies can present themselves as abnormal intensity patterns. Thus, solutions for detecting abnormal intensities are currently under investigation.
Willem H. Bouvy   +24 more
core   +1 more source

White matter development in early puberty: a longitudinal volumetric and diffusion tensor imaging twin study.

open access: yesPLoS ONE, 2012
White matter microstructure and volume show synchronous developmental patterns in children. White matter volume increases considerably during development.
Rachel M Brouwer   +8 more
doaj   +1 more source

On Describing Human White Matter Anatomy: The White Matter Query Language [PDF]

open access: yes, 2013
The main contribution of this work is the careful syntactical definition of major white matter tracts in the human brain based on a neuroanatomist's expert knowledge. We present a technique to formally describe white matter tracts and to automatically extract them from diffusion MRI data.
Demian Wassermann   +6 more
openaire   +5 more sources

APPLICATION OF STEREOLOGICAL METHODS TO STUDY THE WHITE MATTER AND MYELINATED FIBERS THEREIN OF RAT BRAIN

open access: yesImage Analysis and Stereology, 2011
An efficient and unbiased stereological method was applied to estimate the white matter volume, the total volume, total length and mean diameter of the myelinated fibers in the white matter and the total volume of the myelin sheaths in the white matter ...
Shu Yang   +5 more
doaj   +1 more source

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