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Word: cortexes (lookup in dictionary) (lookup stats)
Dates: during 2000-2009
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...regain lost motor skills. The non-invasive therapy, called transcranial magnetic simulation (TMS), uses a figure eight-shaped coil to deliver weak, pulsating electrical currents to specific areas of the brain. When the therapy is applied for 10 to 20 minutes to the brain’s motor cortex, the magnetic field generated by the electrical currents “improved motor functions in stroke patients,” Fregni said. When healthy, the two sides of the brain communicate with each other. After a stroke, when one side of the brain becomes damaged, the healthy half of the brain...

Author: By Xianlin Li, CONTRIBUTING WRITER | Title: HMS Studies Stroke Treatment | 10/13/2005 | See Source »

...discovering the 'materialist' (that is, 'physical') basis for Lenin's political and philosophical genius." Two years and 34,000 slices later, Vogt found, and the Journal of the American Medical Association reported, a "large number of paths proceeding from the pyramidal cells [triangular nerve cells in the cerebral cortex]." These were taken to explain "the wide range and the multiplicity of ideas that developed in the brain of Lenin and, particularly, his capacity for quickly getting his bearings when confronted with the most complex situations and problems ..." Conclusion? "The key to a materialistic view of Lenin's genius has been...

Author: /time Magazine | Title: Essay: In Search of the Silver Bullet | 4/18/2005 | See Source »

What's more, when he recorded brain activity using electroencephalograms, Battaglia found that those with higher scores for shyness had lower levels of activity in the cortex, where sophisticated thought takes place. That suggested higher levels of activity in the more primitive amygdala, where anxiety and alarm are sounded. Shy children, Battaglia concluded, may simply be less adept at reading the facial flickers other kids use as social cues. Unable to rely on those helpful signals, they tend to go on high alert, feeling anxious about any face they can't decipher. "The capacity to interpret faces...

Author: /time Magazine | Title: Secrets of the Shy | 3/28/2005 | See Source »

...SAME AS BEING BRAIN DEAD? No. Brain death occurs when there is no activity anywhere in the brain. In PVS, certain primitive regions of the brain, including the brain stem, which controls autonomic functions such as breathing and the beating of the heart, are still alive. However, the cortex, which is the thinking part of the cerebrum, and/or the thalamus, which connects the brain stem to the cortex, are so badly damaged that they no longer function...

Author: /time Magazine | Title: Neurology: When Does the Brain Go Blank? | 3/27/2005 | See Source »

...PARENTS MADE? The most difficult thing to understand about a vegetative state is that it allows one to be awake but not aware. (In a coma, you are unresponsive and your eyes are closed.) Because the sleep-wake cycle and certain eye movements are not controlled by the cortex or the thalamus, they can continue without conscious awareness. Even acts of crying and smiling may be reflexive events that do not occur in response to specific stimuli...

Author: /time Magazine | Title: Neurology: When Does the Brain Go Blank? | 3/27/2005 | See Source »

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