Related topics: brain
Grey matter
hideGrey matter (or gray matter) is a major component of the central nervous system, consisting of neuronal cell bodies, neuropil (dendrites and both unmyelinated axons and myelinated axons), glial cells (astroglia and oligodendrocytes) and capillaries. Grey matter contains neural cell bodies, in contrast to white matter, which does not and mostly contains myelinated axon tracts. The color difference arises mainly from the whiteness of myelin. In living tissue, grey matter actually has a grey-brown color which comes from capillary blood vessels and neuronal cell bodies.
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News tagged with gray matter
Diffusion tensor imaging increases ability to remove benign tumors in children
Medicine & Health / Neuroscience
Dec 04, 2009 |
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A new study published this week in the Journal of Neurosurgery: Pediatrics finds that operative plans for removing Juvenile Pilocytic Astrocytoma, or JPA, tumors in the thalamus of the brain can be augmented with Diffusion Tensor ...
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Beaming in on Warm Dense Matter (w/ Video)
Dec 17, 2009 |
5 / 5 (3) |
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(PhysOrg.com) -- The Neutralized Drift Compression Experiment II (NDCX-II) now under construction at Berkeley Lab will deliver a high-current pulse of lithium ions to a foil target almost simultaneously, momentarily heating ...
Wolf recovery at crossroads in the Southwest
Dec 06, 2009 |
1 / 5 (1) |
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(AP) -- A decade has passed since the federal government began releasing Mexican wolves into the wild in an effort to return the endangered animal to its historic range in the Southwest. It hasn't worked ...
Apathy common in dementia patients with brain changes
Medicine & Health / Psychology & Psychiatry
Dec 02, 2009 |
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Dementia patients with a certain type of changes in their brain's white matter are more likely to be apathetic than those who do not have these changes, reveals a patient study carried out by the Sahlgrenska Academy and Sahlgrenska ...
Physicists detect two candidate dark matter interactions, but say the data are not conclusive
Dec 18, 2009 |
4.1 / 5 (16) |
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(PhysOrg.com) -- Scientists have spent decades searching for the elusive material known as dark matter, which is believed to make up 25 percent of the universe. On Thursday, Dec. 17, a team of physicists including ...
Scientists discover first evidence of brain rewiring in children
Medicine & Health / Neuroscience
Dec 09, 2009 |
5 / 5 (8) |
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Carnegie Mellon University scientists Timothy Keller and Marcel Just have uncovered the first evidence that intensive instruction to improve reading skills in young children causes the brain to physically ...
Gift Guide: Adventures in the video game aisle
Nov 30, 2009 |
3 / 5 (2) |
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(AP) -- The video game aisle can be intimidating for aspiring Santas who haven't touched a joystick since "Pong." But it has something for everyone: riveting solo adventures, online multiplayer battles and ...
In the Brain, Seven Is A Magic Number
Nov 23, 2009 |
4.4 / 5 (54) |
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Having a tough time recalling a phone number someone spoke a few minutes ago or forgetting items from a mental grocery list is not a sign of mental decline; in fact, it's natural.
The importance of attractiveness depends on where you live
Medicine & Health / Psychology & Psychiatry
Dec 15, 2009 |
4.2 / 5 (6) |
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Do good-looking people really benefit from their looks, and in what ways? A team of researchers from the University of Georgia and the University of Kansas found that yes; attractive people do tend to have more social relationships ...
New approach to emissions makes climate and air quality models more accurate, major study finds
Space & Earth / Earth Sciences
Dec 10, 2009 |
3.9 / 5 (7) |
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It's no secret that the emissions leaving a car tailpipe or factory smokestack affect climate and air quality. Even trees release chemicals that influence the atmosphere. But until now, scientists have struggled to know where ...
Microcephaly genes associated with human brain size
Dec 21, 2009 |
3.7 / 5 (3) |
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A group of Norwegian and American researchers have shown that common variations in genes associated with microcephaly - a neuro-developmental disorder in which brain size is dramatically reduced - may explain differences ...
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