Navigation Links
Scary Events Might Also Activate Brain's Reward Center

THURSDAY, March 3 (HealthDay News) -- The brain's so-called reward center actually responds to both good and bad experiences, even experiences causing fear, finds a new study in mice.

The team of American and Chinese researchers said the finding may help explain why some people are thrill-seekers.

Pleasurable or exciting things, such as eating chocolate or bungee jumping off a bridge, can trigger the production of dopamine, a neurotransmitter chemical that can increase heart rate and motivate behavior, the researchers explained.

In experiments with mice, the team examined dopamine neurons in the brain's ventral tegmental area, which is widely studied for its role in reward-related motivation or drug addiction.

The study authors found that essentially all the dopamine neurons had some response to good or bad experiences, while a fearful event excited about 25 percent of the neurons, prompting more dopamine production.

"We have believed that dopamine was always engaged in reward and processing the hedonistic feeling. What we have found is that the dopamine neurons also are stimulated or respond to negative events," Joe Z. Tsien, co-director of the Brain & Behavior Discovery Institute at Georgia Health Sciences University, said in a university news release.

The study appears in the journal PLoS One.

More information

For more on the psychology of thrill-seeking behavior, visit the archives of the American Psychological Association.

-- Robert Preidt

SOURCE: Georgia Health Sciences University, news release, Feb. 22, 2011

Copyright©2010 ScoutNews,LLC.
All rights reserved  

Page: 1

Related medicine news :

1. Fear of Scary Things May Be Learned
2. Confronting infectious disease threats at large-scale international events
3. Step Up to Speak Up Events Use Spoken Word and African-American Greek Tradition of Stepping to Raise Awareness for Organ and Tissue Donation
4. Adverse events rate is low when propofol is administered by trained professional
5. NAMIWalks Kicks-off “Mental Health Month”; Fun Events that Support Serious Work
6. Study finds post-transplant patients off steroids have fewer cardiovascular events
7. DTWI's Travel Carbon Monoxide Detector Prevents Carbon Monoxide Poisoning Whilst Holidaying Abroad, or in the UK
8. US FDA and NIH Launch Web-Based Safety Reporting Portal to Increase Adverse Events Reporting of FDA-Regulated Products, According to, LLC
9. SISEL International Holds Successful Launch Events In Ukraine
10. Go Skateboarding Day 2010 Events Grow and Bring Skaters Together
11. Heart patients with anxiety disorder experience more cardiovascular events, deaths
Post Your Comments:
Related Image:
Scary Events Might Also Activate Brain's Reward Center 
(Date:11/25/2015)... ... November 25, 2015 , ... ... and athletic programs, launches new Wimbledon Athletics Facebook page to educate ... athletes for unsuspected cardiac abnormalities. About 2,000 people under the age of 25 ...
(Date:11/25/2015)... ... November 25, 2015 , ... The McHenry County law ... successful appellate decision obtained by Attorneys Francisco J. Botto and Alex C. Wimmer. Attorneys ... Workers’ Compensation Comm’n, 2015 IL App (2d) 130884WC. , According to court documents, Adcock ...
(Date:11/25/2015)... ... ... On November 23rd 2015 Cozy Products, a division of Bird-X ... Products explains what this means for business moving forward. , The Tri Lite heater ... model: to sell personal heaters that reduce energy consumption, are economical and keep people ...
(Date:11/25/2015)... ... November 25, 2015 , ... Smiles by Stevens ... Bruxism, and moderate facial wrinkling. While many patients are aware of the benefits of ... success Botox® delivers to those suffering with discomfort, soreness, and pain as a result ...
(Date:11/25/2015)... ... November 25, 2015 , ... ... board certified facial plastic surgeon specializing in both surgical and non-surgical treatments, announced ... Skin Spa at Hobgood Facial Plastic Surgery. , Highly trained and nationally ...
Breaking Medicine News(10 mins):
(Date:11/25/2015)... -- ARKRAY USA , Inc., a leader ... the accuracy of its blood glucose meter systems. Last ... and Cardiovascular Disease in Los Angeles ... 01 meter and the Assure ® Prism ... accurately measure glucose levels in blood is essential for ...
(Date:11/25/2015)... 2015  Henry Schein, Inc., the world,s largest provider ... medical and animal health practitioners, will unveil at the ... Schein ConnectDental® Pavilion , which brings together for the ... designed to help any practice or laboratory enter the ... a schedule of experts appearing at the Pavilion. ...
(Date:11/25/2015)... Israel , November 25, 2015 ... KTOV ) (TASE: KTOV), a biopharmaceutical company focused ... treatment of various clinical conditions, today announced the closing ... American Depository Shares ( ADSs ), each representing 20 ... up to 3,158,900 ADSs. The ADSs and warrants were ...
Breaking Medicine Technology: