Past neuroscience studies have consistently demonstrated that the aging of the mammalian nervous system is liked with a decline in the volume and functioning of white matter, nerve fibers found in deep brain tissues. Although ...
An international team of 79 researchers have collaborated on a study published in Nature Medicine to delve into perivascular spaces (PVS), a poorly understood artifact seen in magnetic resonance imaging of cerebral small ...
Scientists have found that 93% of the lipids in brain tissue are distributed differently in the white and gray matter, the subcortex, the visual and motor cortices, and the prefrontal cortex, which is responsible for decision-making, ...
Jul 5, 2024
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In the largest study of its kind, scientists at the University of Warwick have investigated a range of contributing risk factors for suicide—helping to identify individuals who might benefit from interventions.
Jul 2, 2024
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Artificial intelligence (AI) computer programs that process MRI results show differences in how the brains of men and women are organized at a cellular level, a new study shows. These variations were spotted in white matter, ...
May 14, 2024
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Multiple sclerosis is a heterogeneous disease whose manifestations vary considerably from patient to patient and whose course appears, on the surface, unpredictable. Hence, it is crucial to identify the factors that drive ...
Apr 2, 2024
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A new study by researchers at UC Davis Health found human brains are getting larger. Study participants born in the 1970s had 6.6% larger brain volumes and almost 15% larger brain surface area than those born in the 1930s.
Mar 26, 2024
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By mapping brain activity in three dimensions, researchers at Vanderbilt University Medical Center have achieved a more detailed picture of how the brain changes with age.
Feb 9, 2024
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New research from the Institute of Psychiatry, Psychology & Neuroscience (IoPPN) at King's College London, University of East London (UEL) and the University of Pennsylvania has used artificial intelligence to analyze the ...
Jan 12, 2024
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The human brain is made up of two kinds of matter: the nerve cell bodies (gray matter), which process sensation, control voluntary movement, and enable speech, learning and cognition, and the axons (white matter), which connect ...
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White matter is one of the two components of the central nervous system and consists mostly of myelinated axons. White matter tissue of the freshly cut brain appears pinkish white to the naked eye because of myelin is composed largely of lipid and a few percent of capillaries. Its white color is due to its usual preservation in formaldehyde. A 20 year-old male has around 176,000 km of myelinated axons in his brain.
The other main component of the brain is grey matter (actually pinkish tan due to blood capillaries). A third colored component found in the brain that appears darker due to higher levels of melanin in dopaminergic neurons than its nearby areas is the substantia nigra.
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