News articles tagged with "brain"

04/16/2014 14:25:50
Katie Neith
As reported in a paper published online today in the journal Nature, Caltech biologist David J. Anderson and his colleagues have genetically identified neurons that control aggressive behavior in the mouse hypothalamus, a structure that lies deep in the brain. Researchers have long known that innate social behaviors like mating and aggression are closely related, but the specific neurons in the brain that control these behaviors had not been identified until now.
04/02/2014 18:35:26
Cynthia Eller

To a large extent, the brain remains a black box.

03/31/2014 14:41:52
Douglas Smith
On Wednesday, April 2, Professor of Biology Sarkis Mazmanian will introduce you to the array of bacteria—your microbiome—residing on your skin, in your mouth, and even deep in your guts. Millions of years of coevolution have inextricably linked you and your microbiome, whose chemical "factories" help keep you healthy by doing such things as synthesizing vitamins and digesting your food. Recently, Mazmanian's laboratory has uncovered the surprising roles they play in fending off certain diseases. The talk begins at 8:00 p.m. in Caltech's Beckman Auditorium. Admission is free.
02/05/2014 09:00:07
Kimm Fesenmaier
Caltech researchers have, for the first time, pinpointed areas of the brain—the inferior lateral prefrontal cortex and frontopolar cortex—that seem to serve as an “arbitrator” between two decision-making systems, weighing the reliability of the predictions each makes and then allocating control accordingly.
01/30/2014 09:09:08
Katie Neith
Previous studies of anxiety in the brain have focused on the amygdala, an area known to play a role in fear. But a team of researchers led by biologists at Caltech had a hunch that understanding a different brain area, the lateral septum (LS), could provide more clues into how the brain processes anxiety. Their instincts paid off.
01/16/2014 09:02:47
Katie Neith
According to the latest studies from the fly laboratory of Caltech biologist David Anderson, male fruit flies fight more than their female counterparts because they have special cells in their brains that promote fighting. These cells appear to be absent in the brains of female fruit flies.
12/27/2013 10:21:27
Cynthia Eller
The subjects were asked to observe the shifting value of a hypothetical financial asset and make predictions about whether it would go up or down. Simultaneously, the subjects interacted with an "expert" who was also making predictions.
12/05/2013 09:00:08
Jessica Stoller-Conrad
"Traditional research has studied autism as a genetic disorder and a disorder of the brain, but our work shows that gut bacteria may contribute to ASD-like symptoms in ways that were previously unappreciated," says Sarkis Mazmanian.
11/20/2013 09:00:05
Katie Neith
A group of researchers led by Caltech neuroscientist Ralph Adolphs has made the first recordings of the firings of single neurons in the brains of autistic individuals, and has found specific neurons in a region called the amygdala that show reduced processing of the eye region of faces.
09/24/2013 21:29:22
Kathy Svitil
Colin Camerer, a behavioral economist at the California Institute of Technology whose work integrates psychology with economics experiments to understand how people behave when making decisions, has been named a MacArthur Fellow and awarded a five-year, $625,000 "no strings attached" grant.
09/18/2013 09:02:05
Kimm Fesenmaier
During financial bubbles, such as the one that centered around the U.S. housing market and triggered the Great Recession, some investors react differently than others. New neuroeconomic research at the California Institute of Technology (Caltech) has found that the investors most likely to take a risk and fuel bubble markets are those with good "theory of mind" skills—those who are good at "putting themselves in others' shoes." They think the most about the motives behind prices and what other people in the market are likely to do next, but during bubble markets, that actually becomes risky behavior.
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