'Worry' Spot in Brain Found

(HealthDay News) -- Stanford researchers report that worrying about something before it happens might do more than just create knots in your stomach.

They found that people who seemed to have higher levels of "anticipatory worry" -- judged by brain scans of activity in a part of the brain known as the anterior insula -- did better in a financial game, said study author Gregory Samanez-Larkin, a psychology graduate student at Stanford.

If the anterior insula was more active, the subjects had "a higher fidelity when it comes to making economic decisions," said Samanez-Larkin. "They were better at predicting what might happen." These volunteers learned to avoid losses when playing the same game months later, he noted.

"I wouldn't call it intelligence," he said. Instead, "it's a sort of expertise."

The anterior insula is a region buried deep inside the brain that's considered an artifact of humans' reptilian heritage. "At the very basic level, it has something to do with sensing danger or monitoring danger," explained Rajesh Miranda, an associate professor at Texas A & M Health Science Center.

But researchers haven't spent too much time on that region, because they prefer brain regions that are easier to access and understand, he said.

In the new study, Samanez-Larkin and colleagues recruited 23 subjects to play a financial game while scanners measured their brain activity. Eight to 10 months later, the subjects returned and played a similar game, although their brains weren't scanned.

The researchers then tried to find links between the brain scans and how the subjects performed in the games. "We looked in the brain for readings that were active while people were anticipating losses" in the game, Samanez-Larkin said.

The results were published in the April issue of Psychological Science.

Miranda said the study doesn't add much to existing knowledge. "It seems like it deals essentially with what's been known," he said.

Still, expanded knowledge about that particular brain region could lead to better treatments for anxiety and help researchers predict who might do a better job of handling stress, Miranda said.

Samanez-Larkin said the research could also be used to detect people who are most likely to get too many credit cards and fall into debt or fall victim to scams, because they aren't adept at processing financial information. "You could identify people who are susceptible to things like this and try to help them," he said.

More information
Check out images of various brain regions at brainexplorer.org.

Study Shows Anger Has Its Uses

(HealthDay News) -- People like to temper their emotions to the task at hand, and it can help them succeed, even if the emotions are not pleasurable ones, a new report suggests.

Individuals are motivated to increase their level of anger, for example, when they expect to complete a confrontational task in which anger might enhance performance, according to the study published in the April issue of Psychological Science. And reaching that frame of mind does seem to help.

Psychologists from Boston College and Stanford University told study participants that they would either play a computer game that is confrontational (a first-person shooter game where killing enemies is the primary goal) or one that is not confrontational (a game in which players guide a waitress serving customers). Participants then rated the extent to which they would like to engage in different activities before playing the game.

Participants preferred activities that were likely to make them angry (e.g., listening to anger-inducing music, recalling past events in which they were angry) when they expected to perform the confrontational task, researchers found. In contrast, participants preferred more pleasant activities when they expected to perform a non-confrontational task.

Angry participants proceeded to perform better than others in the confrontational game of killing enemy soldiers. However, they did not perform better than others in the non-confrontational game of serving customers.

"Such findings," the authors wrote, "demonstrate that what people prefer to feel at any given moment may depend, in part, on what they might get out of it."

More information
The National Crime Prevention Council has more about how to manage your anger.