Articles with the keyword: 
Bird Brains Split Lookout Duty
sea-maid submitted, created time 1 week 4 days (sciencenow.sciencemag.org)
What good is half a brain? Good enough for migratory birds to avoid predators when napping in the daytime. A new study finds that migrating birds take mini-naps during the day but only rest half their brains at a time, allowing them to keep one eye 
Silencing Growth Inhibitors Could Help Recovery from Brain Injury
sea-maid submitted, created time 1 week 5 days (gopast.net)
Silencing natural growth inhibitors may make it possible to regenerate nerves damaged by brain or spinal cord injury, finds a study from Children's Hospital Boston. In a mouse study published in the November 7 issue of Science, researchers temporarily silenced genes that prevent mature neurons from regenerating, and caused them to recover and re-grow vigorously after damage.
Unconscious Brain Still Registers Pain
jerry submitted, created time 1 month 1 week (sciencenow.sciencemag.org)
Most of the time, doctors have a simple way to determine if a patient needs pain medication: They ask. But when a brain injury renders someone unable to respond to questions, the right course of action becomes murkier. Now a study finds that the brains of some patients with brain injuries respond to an unpleasant electrical shock much as do the brains of healthy people, suggesting that these patients may feel pain even though they're unable to show it
Alzheimer's Protein Tracked in Injured Brains
jerry submitted, created time 2 months 2 weeks (www.time.com)
Scientists for the first time have peered into people's brains to directly measure the ebb and flow of a substance notorious for its role in Alzheimer's disease...
sea-maid submitted, created time 3 months 3 weeks (sciencenow.sciencemag.org)
A new study has found that older rats seem to replay previous events less and, as a result, have more trouble remembering than younger animals.
Could those memory problems be due to a decline in the brain's replay during sleep? How can these results be extrapolated to humans?
Tool Use Is Just a Trick of the Mind
sea-maid submitted, created time 4 months 1 week (sciencenow.sciencemag.org)
Primate brains learn how to use pliers and other implements by treating them as part of the body.
Mind-reading with a brain scan
sumsung submitted, created time 8 months 2 weeks (www.nature.com)
Scientists have developed a way of "decoding" someone’s brain activity to determine what they are looking at. “The problem is analogous to the classic ‘pick a card, any card’ magic trick,” says Jack Gallant, a neuroscientist at the University of California in Berkeley, who led the study. But while a magician uses a ploy to pretend to "read the mind" of the subject staring at a card, now researchers can do it for real using brain-scanning instruments.
'Virtual' mouse brains now available online
bianjie submitted, created time 1 year 4 months (www.eurekalert.org)
A multi-institutional consortium including Duke University has created startlingly crisp 3-D microscopic views of tiny mouse brains -- unveiled layer by layer -- by extending the capabilities of conventional magnetic resonance imaging.
Modern brains have an ancient core
BIOBOSS submitted, created time 1 year 4 months (www.embl.org)
Researchers from the European Molecular Biology Laboratory now reveal that the hypothalamus and its hormones are not purely vertebrate inventions, but have their evolutionary roots in marine, worm-like ancestors. In this week's issue of the journal Cell they report that hormone-secreting brain centres are much older than expected and likely evolved from multifunctional cells of the last common ancestor of vertebrates, flies and worms.
Traumas like Sept. 11 make brains more reactive to fear
badboy submitted, created time 1 year 6 months (www.biologynews.net)
"According to a new brain study, even people who seemed resilient but were close to the World Trade Center when the twin towers toppled on Sept. 11, 2001, have brains that are more reactive to emotional stimuli than those who were more than 200 miles away."
Brain asymmetry in other species: reading canine emotions and other phenomena
Darkfrog submitted, created time 1 year 6 months (www.nytimes.com)
Many scientists believe that only humans, because of the development of language in the left brain, show brain asymmetry -- have right and left hemispheres that perform slightly different functions. However, many other animals show behaviors that may be explained by brain asymmetry. This particular article focuses on dogs: There may be more to our furry, drool-spewing pals than meets the eye. Sure, they wag their tails when they're happy, but it seems there's more to it than that. This piece comes with quick illustrations.
The Brain May Use Only 20 Percent of Its Memory-Forming Neurons
medal submitted, created time 1 year 7 months (www.sciam.com)
"Remember the old myth that people only use 10 percent of their brains? Although a new study confirmed that bromide to be apocryphal, it did find that we may only use 20 percent of the nerve cells in our midbrain to form memories. "
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