August 12, 2012 |
August is a great month for celebrating human stupidity. On Aug. 6, 1945, we all but disappeared Hiroshima with a single atomic bomb, and then did it again, three days later, at Nagasaki. And now we barely seem to care. The sad truth is, we are incapable of understanding exactly what these seemingly ancient events mean - right now, for all of us, today. The August anniversaries are a stark reminder that the brains we inherited from our ancestors simply may not be up to dealing with much of the modern world we've (they've)
March 29, 2011 |
Like a jab in the arm with a red-hot poker, social rejection hurts. Literally. A new study finds that our brains make little distinction between the sting of being rebuffed by peers -- or by a lover, boss or family member -- and the physical pain that arises from disease or injury. The new findings are published this week in the Proceedings of the National Academy of Sciences. Researchers from the University of Michigan, Columbia University and the University of Colorado put 40 individuals who were brokenhearted by a recent breakup into a brain scanner and watched as each dumpee gazed upon a photo of his or her dumper and pondered the hurt he or she felt at having been spurned.
July 25, 2013 |
Could cannibal Hannibal Lecter be capable of empathy? Psychopaths do have empathy, researchers say, but it doesn't come naturally. A brain-imaging study of 18 violent, psychopathic criminals in the Netherlands, the largest such study undertaken, suggests they can summon empathy when prompted. The report, published Wednesday in the journal Brain, showed that empathic circuits that are unconsciously activated in the brains of normal people may be dormant or switched off in psychopaths -- not absent, as commonly thought.
October 23, 2012 |
Here's something for raw-food aficionados to chew on: Cooked food might be a big reason humans were able to grow such large brains compared to their body size, scientists say. If modern human ancestors had eaten only raw food, they'd have to regularly feed more than nine hours a day, according to a study published online Monday in Proceedings of the National Academy of Sciences. A pair of researchers from the Instituto Nacional de Neurociéncia Translacional in São Paulo, Brazil, decided to try and help explain why modern humans' brains were able to grow so large compared to their body size and why other primates' brains did not. They looked at the relative brain-to-neuron-counts of a host of primates, from owl monkeys to baboons.
November 11, 2013 |
Attention pregnant women: If you want to help your child get into Harvard, lace up those sneakers and exercise! Hardly a week goes by without science delivering new evidence that exercise boosts the brain. Studies have linked exercise to brain health in senior citizens , middle-aged adults and kids . A trio of researchers from the University of Montreal figured the same might hold true for babies in utero as well. Dave Ellemberg and Daniel Curnier, two professors from the university's Department of Kinesiology, and graduate student Elise Labonte-LeMoyne recruited women who were in their first trimester of pregnancy and randomly assigned them to an “active” or “sedentary” group.
September 3, 2010
The next cures for bacterial infections may come from an unlikely place: cockroach brains. Tissues from cockroach and locust brains and nervous systems killed off 90% of E. coli and MRSA bacteria without harming the human cells they were attacking, according to researchers from the University of Nottingham. The findings, released Saturday, are being presented this week at the autumn meeting of the Society for General Microbiology in Nottingham, Great Britain. The researchers suspect it’s the proteins in the insect brains that so effectively kill the bacteria.