Navigation Links
Risk and reward compete in brain

That familiar pull between the promise of victory and the dread of defeat whether in money, love or sport is rooted in the brain's architecture, according to a new imaging study.

Neuroscientists at the USC Brain and Creativity Institute have identified distinct brain regions with competing responses to risk.

Both regions are located in the prefrontal cortex, an area behind the forehead involved in analysis and planning.

By giving volunteers a task that measures risk tolerance and observing their reactions with functional magnetic resonance imaging (fMRI), the researchers found that activity in one region identified risk-averse volunteers, while activity in a different region was greater in those with an appetite for risk.

The study appeared online Oct. 8 in the journal Cerebral Cortex.

"We can see risk as a battle between two forces," said Antoine Bechara, professor of psychology at USC. "There is always a lure of reward. There's always a fear of failure. These are the two forces that are always battling each other."

In his previous research, Bechara had used the same task to measure risk tolerance in brain-damaged patients. He and other researchers showed that the prefrontal cortex is critical for proper risk assessment.

But because brain lesions differ in every patient and affect multiple areas, lesion-based studies usually cannot pinpoint the role of smaller brain regions.

So Bechara's group at the institute decided to repeat the experiment with fMRI.

"We were interested in how normal people perform this task. What's going on in their brain?" asked first author Gui Xue, a postdoctoral research associate at the institute.

Bechara called his group's study the first to frame a person's risk profile in terms of the interaction between two brain regions.

Co-author Zhong-Lin Lu, professor of psychology at USC, said: "What this study has done is essentially localize two separate centers for the fear of risk and the lure of reward."


Contact: Carl Marziali
University of Southern California

Related biology news :

1. Obesity predisposition traced to the brains reward system
2. How does the opioid system control pain, reward and addictive behavior?
3. ETH Zurich competence center ESC introduces energy strategy
4. Eating competence may lower risk of heart disease
5. Food for thought -- regulating energy supply to the brain during fasting
6. Millisecond brain signals predict response to fast-acting antidepressant
7. During exercise, the human brain shifts into high gear on alternative energy
8. Penn biophysicists create new model for protein-cholesterol interactions in brain and muscle tissue
9. International TGen-led team finds link between brain protein and Alzheimers disease
10. The satellite navigation in our brains
11. Arbor Vita and WRAIR sign CRADA for traumatic brain injury collaboration
Post Your Comments:
(Date:10/27/2015)... , October 27, 2015 ... Semantic Gaze Mapping technology (ASGM) automatically maps data from ... Tracking Glasses , so that they can be ... --> Munich, Germany , October 28-29, ... maps data from mobile eye tracking videos created with ...
(Date:10/26/2015)... Calif. and LAS VEGAS ... Nok Nok Labs , an innovator in modern authentication ... , today announced the launch of its latest version ... unified platform enabling organizations to use standards-based authentication that ... Nok Nok S3 Authentication Suite is ideal for organizations ...
(Date:10/23/2015)... GOLETA, California , October 23, 2015 ... and SensoMotoric Instruments (SMI) announce a mobile plug and ... captured during interactive real-world tasks SensoMotoric Instruments ... of their established wearable solutions for eye tracking and ... behavior captured with SMI Eye Tracking Glasses 2w ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... 25, 2015 Studies reveal the ... plaque and pave the way for more effective treatment for ...     --> --> ... health problems in cats, yet relatively little was understood about ... studies have been conducted by researchers from the WALTHAM Centre ...
(Date:11/25/2015)... , Nov. 25, 2015 Orexigen® Therapeutics, Inc. ... participate in a fireside chat discussion at the Piper ... York . The discussion is scheduled for Wednesday, ... .  A replay will be available for ... Stilwell  , Julie NormartVP, Corporate Communications and Business ...
(Date:11/24/2015)... , Nov. 24, 2015 Cepheid (NASDAQ: ... be speaking at the following conference, and invited investors ... York, NY      Tuesday, December 1, 2015 at ... York, NY      Tuesday, December 1, 2015 at ... Healthcare Conference, New York, NY ...
(Date:11/24/2015)... , Nov. 24, 2015 /PRNewswire/ - Aeterna Zentaris ... of IIROC on behalf of the Toronto Stock Exchange, ... release there are no corporate developments that would cause ... --> --> About Aeterna ... . --> Aeterna Zentaris is a ...
Breaking Biology Technology: