Navigation Links
Risk and reward compete in brain
Date:10/9/2008

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
'/>"/>

Contact: Carl Marziali
marziali@usc.edu
213-740-4751
University of Southern California
Source:Eurekalert

Page: 1 2

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:
*Name:
*Comment:
*Email:
(Date:4/23/2014)... most in their mid-thirties and forties, face a ... within two decades. "Mutant" protein clusters, long blamed ... been the primary focus of therapies in development ... from Prof. Gerardo Lederkremer and Dr. Julia Leitman ... and Immunology, in collaboration with Prof. Ulrich Hartl ...
(Date:4/23/2014)... NY. (Apr. 23 2014) A team ... stem cells (hNSCs) into the brains of nonhuman ... 22 and 24 months found that the hNSCs ... did not cause tumors. , The study will ... Cell Transplantation but is currently freely available ...
(Date:4/23/2014)... group decision increases with the abundance of brains involved ... variety of factors as often happens in life ... groups actually tend to make more accurate decisions while ... pieces of information. , The findings present a significant ... the "wisdom of crowds," wherein individual observations even ...
Breaking Biology News(10 mins):On the defensive 2On the defensive 3Study finds long-term survival of human neural stem cells transplanted into primate brain 2Too many chefs: Smaller groups exhibit more accurate decision-making 2Too many chefs: Smaller groups exhibit more accurate decision-making 3
... new study describes how bacteria use a previously unknown means ... have modified a common "housekeeping" enzyme in a way that ... The study appears in the Proceedings of the ... in chemical warfare with one another, and many antibiotics used ...
... A 12-week treatment of the fermented soy germ-based ... LDL cholesterol and improved vascular stiffness, all factors that ... first-of-its-kind peer-reviewed study reported in a poster at the ... study is the first to provide evidence that a ...
... by a University of Cincinnati undergraduate student and two team ... found to work in continuously recording the habits of snakes. ... Archival Tags (LATs) on snakes, since the LAT devices were ... to LATs, ability to measure temperature and pressure measuring ...
Cached Biology News:Team discovers how bacteria resist a 'Trojan horse' antibiotic 2Soy-based S-equol supplement reduces metabolic syndrome risk factors 2Soy-based S-equol supplement reduces metabolic syndrome risk factors 3UC research: Tracking Lake Erie water snake in fight against invasive fish 2UC research: Tracking Lake Erie water snake in fight against invasive fish 3
(Date:1/15/2014)... 15, 2014 Freeslate, Inc ., ... announced that Lupin Limited, one of India’s top five ... Protégé PharmD System for high throughput solid form ... focused on a wide range of quality, affordable generic ...
(Date:1/14/2014)... 2014 Carahsoft and CDS Federal Services ... 2014 at 2pm EST (11am PST), “Natural Language Processing: ... on how technology can turn raw, heterogeneous data into ... agencies. The online webinar will last approximately one hour. ...
(Date:1/14/2014)... 2014 EquitiesIQ, a leading informational research ... Alliqua is an emerging biomedical company acquiring, developing, manufacturing, ... market. , Free report download: http://equitiesiq.com/reports/alliqua/ , ... management team and Board, which launched the company’s new ...
(Date:1/14/2014)... In recent years, growing suspicion about the pharmaceutical ... and promotion has led to unprecedented levels of public ... about the insidious impact of commercialization of research, has ... the world’s biggest pharmas for illegal marketing activities, allegations ...
Breaking Biology Technology:Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3
... A team of Spanish scientists from a variety of ... the peridunal lagoons in the Doana National Park. Results ... regressing, largely due to the extraction of underground water ... effects of the ecosystem itself are further aggravating the ...
... Fibrocell Science, Inc. (OTCBB: FCSC) announced today that the ... Gene Therapies Advisory Committee reviewed azfibrocel-T, an autologous cell ... severe nasolabial fold wrinkles in adults. The committee voted ... on azfibrocel-T demonstrated efficacy, and 6 yes to 8 ...
... ( www.booshoot.com ) today announced that its ... of Martha Stewart "Dreamers Into Doers" program - an ... passions into a successful for-profit or non-profit career. ... in the for-profit category for her innovative and groundbreaking ...
Cached Biology Technology:Huelva is swallowing up coastal lagoons in Doñana 2Fibrocell Science, Inc. Reports Outcome of FDA Advisory Committee Meeting on Azfibrocel-T for Wrinkles 2Booshoot Founder & CEO Jackie Heinricher Honored as Visionary Entrepreneur by Martha Stewart 2