Navigation Links
Distinct Brain Sections Are Activated While Making Risky Decisions

Duke University Medical Center researchers have discovered that distinct regions of the human brain are activated when people are faced with ambiguous choices versus// choices involving only risk. The investigators found the reason behind why people make risky choices, and how such risk-taking can become an addition or lead to compulsive gambling. The study results were published in the journal Neuron.

The research was supported by the National Institute of Mental Health, the National Institute of Neurological Disorders and stroke and Duke.

Scott Huettel, Ph.D., lead author and a neuroscientist with the Brain Imaging and Analysis Center at Duke University said that each individual’s brain activity differed depending on the person's preferences or aversions to risk and ambiguity. People who preferred ambiguity had increased activation in the prefrontal cortex, and people who preferred risk had increased activation in the parietal cortex. This shows that each type of decision making is due to the activation of specific neural mechanisms.

the participants included in the study were 13 adult who were asked to choose between pairs of monetary gambles that were predetermined to be certain, risky or ambiguous. In case risky choices the subjects were told the odds that they would win the gambles, but for the ambiguous choices they were not given this information. The participants were rewarded with a cash payout based upon whether or not they won their gambles.

The researchers used functional magnetic resonance imaging (fMRI) to determine which areas of the brain were activated while people were making risky or ambiguous choices. They found that activation of specific brain regions depended on participants' preferences for risk or for ambiguity. By this experiment one can tell whether a person by nature is impulsive by analyzing their brain which would prefer risky gambles to those that were ambiguous.

Michael Pl att, Ph.D., a neurobiologist and co-author of the study said that Impulsive behavior can be associated with all sorts of mental disorders like addiction or problem gambling. If it was possible to change the way people perceive risk and ambiguity by introducing a medication that could influence brain chemistry then we might be able to alleviate some types of pathological decision making.

The experiments were an eye opener in the direction of the new and emerging field of neuroeconomics. Neuroeconomics is a relatively new area of research in which neuroscientists, economists, psychologists and psychiatrists together work to better understand how the brain works when people make decisions, evaluate risk, and receive rewards.

Jill Stowe, Ph.D., a decision scientist with Duke's Fuqua School of Business and co-author of the study said that the results help in understanding how people evaluate risky and ambiguous options in different ways.


Related medicine news :

1. Distinct Support Services Needed, To Resurrect Ethnic Groups from Alcohol Abuse
2. Two Distinct Types of Vocal Cord Dysfunction Identified
3. Use of Cellular Phones associated with Increased risk of Brain Tumors
4. Brain death – How to cope with it
5. “Brain fingerprinting”- The new lie detectr
6. Nasal Spray Could Take Drugs Direct to Brain.
7. Virus Combats Brain Tumour
8. Nasal Spray Could Take Drugs Directly to Brain
9. Control of anger disorder connected to Brain Dysfunction
10. High Levels of Protein Linked to Brain Shrinkage
11. Brain damage affects artistic skill
Post Your Comments:

(Date:11/30/2015)... ... November 30, 2015 , ... While powdered supplements and drinks can reduce food ... inventor from Chesterfield, Va., has found an easy to keep track of the scoop. ... measure powdered contents in a canister or other container handy and readily accessible. As ...
(Date:11/30/2015)... ... November 30, 2015 , ... Volpara ... breast density assessment and enterprise analytics solutions, here at the 101st Annual ... Hall booth #2377). Volpara’s quantitative breast imaging tools enable personalized measurements of ...
(Date:11/30/2015)... DC (PRWEB) , ... November ... ... Inc. (AIS) is pleased to announce the speakers for “Value-Based Payer-Provider Partnerships: ... lessons learned from three innovative value-based care arrangements: Essentia Health and UCare, ...
(Date:11/30/2015)... , ... November 30, 2015 , ... ... alliance around Novus’ TIGR® Matrix Surgical Mesh technology for soft tissue repair in ... TIGR® Matrix is a long-term resorbable surgical mesh intended to support and reinforce ...
(Date:11/30/2015)... ... November 30, 2015 , ... GKhair & Tibolli team members and artists ... Show held on November 8th and 9th at the Puerto Rico Convention Center, San ... renowned beauticians and top of the line fashion journalists. The San Juan Beauty Show ...
Breaking Medicine News(10 mins):
(Date:11/30/2015)... Months Ended 30 September 2015 2014RestatedChange%Turnover 545,575 , 518,852 , ... 384,242 , 9.8 Hospital Management Service Income ... (18.3) Medical Insurance Administration Service Income , 2,780 ... and Accessories Sales , 89,645 , 94,580 ... 2,822 , 2,917 , (3.3) Gross ...
(Date:11/30/2015)... , Nov. 30, 2015  PTS Diagnostics, the U.S.-based ... ® analyzers, A1CNow ® systems, and PTS ... family of patents that will propel the company into ... and Europe . The technology is ... as those on smartphones and tablets, and uses test ...
(Date:11/30/2015)... -- Cumberland Pharmaceuticals (CPIX), today announced that A.J. Kazimi , ... 3, 2015. TIME: 3:15p.m. ET LINK: ... --> DATE: Thursday, December 3, ... --> --> This will be ... ask the company questions in real-time - both in the ...
Breaking Medicine Technology: