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
Is Tetris good for the brain?
Medicine & Health / Neuroscience
Sep 01, 2009 |
4.3 / 5 (11) |
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Brain imaging shows playing Tetris leads to a thicker cortex and may also increase brain efficiency, according to research published in the open access journal BMC Research Notes. A research team based in ...
Meditation increases brain gray matter
Medicine & Health / Neuroscience
May 12, 2009 |
4.5 / 5 (35) |
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Push-ups, crunches, gyms, personal trainers -- people have many strategies for building bigger muscles and stronger bones. But what can one do to build a bigger brain? Meditate.
Some Short-term Memories Die Suddenly, No Fading
Medicine & Health / Psychology & Psychiatry
Apr 28, 2009 |
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(PhysOrg.com) -- The human brain stores some kinds of memories for a lifetime. But when our eyes are open and looking at things, our gray matter also creates temporary memories that help us process complex ...
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 ...
Age-related difficulty recognizing words predicted by brain differences
Medicine & Health / Neuroscience
May 12, 2009 |
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Older adults may have difficulty understanding speech because of age-related changes in brain tissue, according to new research in the May 13 issue of The Journal of Neuroscience. The study shows that older adults with t ...
Healthy older brains not significantly smaller than younger brains, new imaging study shows
Medicine & Health / Neuroscience
Sep 08, 2009 |
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The belief that healthy older brains are substantially smaller than younger brains may stem from studies that did not screen out people whose undetected, slowly developing brain disease was killing off cells in key areas, ...
Researchers find brain cell transplants help repair neural damage
Oct 29, 2009 |
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A Swiss research team has found that using an animal's own brain cells (autologous transplant) to replace degenerated neurons in select brain areas of donor primates with simulated but asymptomatic Parkinson's disease and ...
Researchers discover molecule responsible for axonal branching
Sep 21, 2009 |
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The human brain consists of about 100 billion (1011) neurons, which altogether form about 100 trillion (1014) synaptic connections with each other. A crucial mechanism for the generation of this complex wiring pattern is ...
Diabetes drug shows promise against multiple sclerosis (w/Podcast)
Medicine & Health / Medications
May 26, 2009 |
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A drug currently FDA-approved for use in diabetes shows some protective effects in the brains of patients with relapsing remitting multiple sclerosis, researchers at the University of Illinois at Chicago College of Medicine ...
Epstein-Barr virus may be associated with progression of MS
Medicine & Health / Neuroscience
Mar 02, 2009 |
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Epstein-Barr virus (EBV), the pathogen that causes mononucleosis, appears to play a role in the neurodegeneration that occurs in persons with multiple sclerosis, researchers at the University at Buffalo and the University ...
Source of cognitive decline in aging brains
Jan 07, 2009 |
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(PhysOrg.com) -- As people age, memory and the ability to carry out tasks often decline. Scientists looking for ways to lessen that decline often have focused on the "gray matter" -- the cortical regions where high-level ...
Multiple sclerosis progression can be predicted with MRI
Nov 05, 2008 |
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A new study published in Journal of Neuroimaging shows that MRI scans used on multiple sclerosis (MS) patients to determine if the disease has affected gray matter in the brain can identify those at-risk for progression of dis ...
Gray matter under attack in multiple sclerosis
Medicine & Health / Neuroscience
Apr 30, 2009 |
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Autoimmune disease is a condition in which the immune system attacks the body's own material just as aggressively as it would attack a foreign pathogen. Multiple sclerosis, MS for short, is just one such autoimmune disease, ...
Brain physiology of prenatal alcohol exposure uncovered
Aug 27, 2008 |
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(PhysOrg.com) -- University of Alberta researchers have identified several regions of the brain that appear to be altered in children with Fetal Alcohol Spectrum Disorder.
