April 19, 2012 |
In some ways, parties seem like the worst possible places to socialize. A cacophony of voices -- not to mention a blaring stereo system -- make for a noisy environment in which to hear what a friend is saying. Hence the term "the cocktail-party effect," which refers to people's ability to focus on one speaker and tune out another. Now Nima Mesgarani and Edward F. Chang of UC San Francisco have figured out how the brain accomplishes this feat of selective hearing: The auditory cortex, which processes sounds, favors the voice that it needs or wants to hear.
November 5, 2012 |
Researchers have moved one step closer to understanding how anesthesia drugs work by identifying a component of brain activity that could explain why we lose consciousness under the influence of the drugs, according to a study published Monday in the Proceedings of the National Academy of Sciences. Though "going under" is an extremely common part of many medical procedures, the mechanism by which it works remains a mystery. This fact has practical ramifications: Some studies have shown that anesthesia can lead to loss of memory and other side effects, something researchers might be able to alleviate if they understand exactly what the drugs do in the body.
CALIFORNIA | LOCAL
August 7, 1991
A UC Irvine scientist has won a $165,000 grant to help develop a revolutionary technique for mapping brain activity, university officials announced. Ron Frostig, an assistant professor of psychobiology at UCI, received the award recently from the Arnold and Mabel Beckman Foundation. He plans to use the funds to continue research into the way various parts of the brain reflect light.
March 21, 1986
Imprisoned financier Michele Sindona, who was once known as "God's Banker" because of his ties with the Vatican, was reported in a deep coma and near death, two days after being sentenced to a life term for ordering a murder. Sindona, 65, was taken ill as he ate breakfast at a prison in Voghera, Italy. He was reported to have been in a coma on arrival at a nearby hospital, where tests indicated no brain activity.
June 13, 2011 |
Could the teen brain identify chart-topping pop music hits -- and duds -- before a big-shot producer ever could? Perhaps, according to a study published online June 8 in the Journal of Consumer Psychology. Almost by accident, some previous research by Emory University scientists into the teen brain showed that adolescents' brain activity could potentially predict a song's ultimate success or failure. Back in 2006, Emory University neuroeconomist Gregory Berns had 27 teens between age 12 and 17 listen to 120 songs picked from Myspace that were relatively unknown artists without recording contracts, and measured the teens' brain activity.
June 22, 2012 |
Does depth perception develop in humans as a result of nature or nurture? It's a question scientists have wondered about. And a new study comes to a surprising conclusion: Babies acquire binocular vision as a result of viewing the world around them, not merely thanks to genetic programming. "My guess was that it was going to be something in between nature and nurture," said study leader Ilona Kovacs, a psychologist at the Budapest University of Technology and Economics in Hungary.
July 16, 2011 |
A prestigious neurology clinic has launched an unprecedented brain study of professional fighters with the goal of advancing research to improve various treatments for brain damage. "We know what permanent brain damage looks like in its final stages, but we know so little about what causes it and what happens during cumulative trauma," said Maureen Peckman of the Cleveland Clinic. Peckman is coordinating the new study between the clinic's Lou Ruvo Center for Brain Health in Las Vegas and officials with the Nevada State Athletic Commission.
June 27, 2012 |
How does the formidable human brain organize its memories? A new study used electrical activity of the brain to investigate. The resulting report shows that when people think of words that are linked by their meanings -- "apple" and "orange," for example -- the brain often exhibits similar patterns of activity. There's a futuristic, Big Brother-ish dimension to the work: The authors argue that down the road, their results might be useful in mind-reading approaches that rely on connecting measurements of brain activity to what a person is thinking.