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Brain Wired For Risk and Reward

brainResearchers have determined the brain possesses distinct regions that are associated with risk-taking.

Functional imaging defined areas of risk and reward 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.

“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.”

The study appeared online in the journal Cerebral Cortex.

Source: University of Southern California

Brain Wired For Risk and Reward

Rick Nauert PhD

Rick Nauert, PhDDr. Rick Nauert has over 25 years experience in clinical, administrative and academic healthcare. He is currently an associate professor for Rocky Mountain University of Health Professionals doctoral program in health promotion and wellness. Dr. Nauert began his career as a clinical physical therapist and served as a regional manager for a publicly traded multidisciplinary rehabilitation agency for 12 years. He has masters degrees in health-fitness management and healthcare administration and a doctoral degree from The University of Texas at Austin focused on health care informatics, health administration, health education and health policy. His research efforts included the area of telehealth with a specialty in disease management.

APA Reference
Nauert PhD, R. (2015). Brain Wired For Risk and Reward. Psych Central. Retrieved on December 12, 2018, from https://psychcentral.com/news/2008/10/10/brain-wired-for-risk-and-reward/3108.html

 

Scientifically Reviewed
Last updated: 6 Oct 2015
Last reviewed: By John M. Grohol, Psy.D. on 6 Oct 2015
Published on PsychCentral.com. All rights reserved.