gray matter


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gray matter

Intelligence. In medicine, gray matter is tissue in the brain and spinal cord. Come on in—we could use your gray matter as we try to solve this problem.
See also: gray, matter

gray matter

Fig. intelligence; brains; power of thought. Use your gray matter and think what will happen if the committee resigns. Surely they'll come up with an acceptable solution if they use some gray matter.
See also: gray, matter

gray matter

Brains, intellect, as in If you'd only use your gray matter, you'd see the answer in a minute. This expression refers to actual brain tissue that is gray in color. Agatha Christie's fictional detective, Hercule Poirot, constantly alludes to using the little gray cells for solving a crime. [Late 1800s]
See also: gray, matter

ˈgrey matter

(informal) intelligence or mental powers: Mark hasn’t got much grey matter, but he tries hard.
See also: grey, matter
References in periodicals archive ?
The researchers found that gray matter volume increased in the areas of the brain that control leg movement, which may reflect changes related to the brain learning how to move in microgravity, while in other areas of the brain, gray matter volume decreased due to redistribution of the CSF.
Based on the research to date, "we know that fibromyalgia patients have altered pain processing, loss of brain gray matter, changes in white matter tracts, changes in neurochemical function, and cognitive deficits," Dr.
Increased iron in deep gray matter was correlated inversely and significantly with performance on several neuropsychological tests, including the Rey Complex Figure Test, the California Verbal Learning Test, and the Digit Span Backward test, Dr.
People in both groups showed a loss of gray matter as they aged.
The findings further suggest that clues to the treatment of other diseases long believed to be focused in the brain's gray matter - such as Alzheimer's disease, Huntington's disease and Parkinson's disease - may be informed by studies of diseases of the white matter, such as multiple sclerosis (MS).
In families with patients who have bipolar disorder, gray matter deficits seen on MRI also correlated with increased genetic liability, but the extent of the gray matter deficits was much less than in the schizophrenia families.
They find that about a month of treatment with the drug increases the volume of gray matter in a person's brain.
Exercise your gray matter this summer by checking out these scientific happenings.
The electrical and software aspects of the installation were designed by Steve Gray, president of Tiny Gray Matter.
They found that the most important areas of white and gray matter don't always overlap.
In the important brain areas that varied in volume with stress, the white and gray matter volumes were lower in tandem.
Previous research has concluded that heavy drinking is associated with depleted cortical gray matter volume and diminished levels of N-acetylaspartate (a marker of neuronal viability) in the lower frontal white matter and gray matter, Dr.
Preliminary data suggest that deceitful, violent men diagnosed with antisocial personality disorder have a reduced amount of gray matter in the brain's prefrontal cortex.
CCortex is a massive spiking neuron network emulation and will mimic the human cortex, the outer layer of gray matter at the cerebral hemispheres, largely responsible for higher brain functions.
It found that adolescents diagnosed with schizophrenia and other psychoses appear to show greater decreases in gray matter volume and increases in cerebrospinal fluid in the frontal lobe compared to healthy adolescents without a diagnosis of psychosis.