Daily non-political popular news in brief.
UCLA imaging study reveals how pure oxygen harms the brain
05-21-2007 · EurekAlert!A new UCLA imaging study reveals how inhaling 100 percent oxygen can harm the brain. The findings fly in the face of national guidelines for resuscitation and urge a new approach adding carbon dioxide to the gas mix to preserve brain function in patients.
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- Putting feelings into words produces therapeutic effects in the brain
06-21-2007 · EurekAlert!
A new brain imaging study by UCLA psychologists reveals why verbalizing our feelings makes our sadness, anger and pain less intense. A second UCLA study combines modern neuroscience with ancient Buddhist teachings to provide the first neural evidence for why "mindfulness" -- the ability to live in the present moment, without distraction -- seems to produce a variety of health benefits.
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- Imaging study reveals rapid formation of Alzheimer's-associated plaques
02-06-2008 · EurekAlert!
The amyloid plaques found in the brains of Alzheimer's disease patients may form much more rapidly than previously expected. Using an advanced microscopic imaging technique to examine brain tissue in mouse models of the devastating neurological disorder, researchers from the MassGeneral Institute for Neurodegenerative Disease find that plaques can develop in as little as a day and that Alzheimer's-associated neuronal changes appear soon afterwards.
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- UCLA imaging study provides clues about inability to imitate and empathize in autistic children
05-04-2007 · EurekAlert!
New imaging research at UCLA shows that impairments in autistic children's ability to imitate and empathize can be linked to dysfunction in the brain’s mirror-neuron system.
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- NIDA research reveals subconscious signals can trigger drug craving
01-29-2008 · EurekAlert!
Using a brain imaging technology called functional magnetic resonance imaging, scientists have discovered that cocaine-related images trigger the emotional centers of the brains of patients addicted to drugs -- even when the subjects are unaware they've seen anything. The study, published Jan. 30 in the journal PLoS ONE, was funded by the National Institute on Drug Abuse, part of the National Institutes of Health.
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- MRI analysis could prevent brain damage from stroke, Stanford study finds
11-01-2006 · EurekAlert!
Greg Albers, M.D., director of the Stanford Stroke Center, and his team report in the November issue of Annals of Neurology that new magnetic resonance imaging techniques can discriminate between stroke patients who are likely to benefit from a stroke medication -- even when administered beyond the currently approved three-hour time window -- and those for whom treatment is unlikely to be beneficial and may cause harm.
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- How does your brain tell time?
01-31-2007 · EurekAlert!
For decades, scientists have believed that the brain possesses an internal clock that allows it to keep track of time. Now a UCLA study in the February 1 edition of Neuron proposes a new model in which a series of physical changes to the brain's cells helps the organ to monitor the passage of time -- much like counting the rings in a tree stump reveals the age of a fallen tree.
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- Sleep-deprivation causes an emotional brain 'disconnect'
10-22-2007 · EurekAlert!
Without sleep, the emotional centers of the brain dramatically overreact to negative experiences, reveals a new brain imaging study in the Oct. 23 issue of Current Biology, a publication of Cell Press. The reason for that hyperactive emotional response in sleep-deprived people stems from a shutdown of the prefrontal lobe -- a region that normally keeps emotions under control.
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- Distorted self-image due to visual brain glitch, UCLA research finds
12-03-2007 · EurekAlert!
Although they look normal, people suffering from body dysmorphic disorder perceive themselves as ugly and disfigured. New imaging research reveals that the brains of people with BDD look normal, but function abnormally when processing visual details. Reported in the December edition of the Archives of General Psychiatry, the UCLA findings are the first to demonstrate a biological reason for patients' distorted body image.
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- Obesity research boosted by watching hunger in the brain
11-07-2007 · EurekAlert!
Scientists can now measure how full or hungry a mouse feels, thanks to a new technique which uses imaging to reveal how neurons behave in the part of the brain which regulates appetite. Researchers hope the technique, which uses magnetic resonance imaging, will enable a far greater understanding of why certain people become obese when others do not, and why different people have different appetites.
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- The origin of the brain lies in a worm
04-20-2007 · EurekAlert!
Researchers from the European Molecular Biology Laboratory in Heidelberg now reveal that the vertebrate nervous system is probably much older than expected. The study, which is published in the current issue of Cell, suggests that the last common ancestor of vertebrates, insects and worms already had a centralised nervous system resembling that of vertebrates today.
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