HOME >> MEDICINE >> NEWS
'Cheerleader' brain signal may act as a task master, Science study suggests

This news release is also available in Japanese.

Scientists have discovered a brain signal that, like an encouraging bystander at a marathon, urges us keep working at a task in order to receive a reward.

If these signals are overly active, they might contribute to obsessive-compulsive disorder or drug abuse, according to the study authors. Their research appears in the journal, Science, published by the American Association for the Advancement of Science (AAAS).

"Research over the last decade has shown that addiction is a brain disease--it comes about because drug use distorts the brain's functioning. This research is an important new lead in efforts to understand just how brain changes get translated into the compulsion that characterizes addiction, " said Alan I. Leshner, Chief Executive Office of AAAS, and formerly Director of the National Institute on Drug Abuse.

Science author Munetaka Shidara, of the National Institute of Advanced Industrial Science and Technology, in Ibaraki, Japan, noted that the signal may be part of the biological basis of motivation.

Understanding how this signal works normally, as well as when its activity is abnormally high or low, may shed light on why individuals seem to have different levels of motivation for performing similar tasks," said Shidara.

The signal seems to wind down just before a reward is reached. Understanding that the reward is a sure thing may be more important than actually receiving it, said Barry J. Richmond of the National Institute of Mental Health in the United States.

Imagine youre in a tall building, waiting for the elevator, but it doesnt come. Your anxiety increases, but then you hear a bell ding on the next floor, and you feel better, because youre sure whats going to happen next. The signal we saw is like that, Richmond said.

Shidara and Ric
'"/>

Contact: Lisa Onaga
lonaga@aaas.org
202-326-7088
American Association for the Advancement of Science
30-May-2002


Page: 1 2 3

Related medicine news :

1. Some brain cells change channels to fine-tune the message
2. First mouse model for multiple system atrophy points to new treatment targets for brain diseases
3. Can you read my mind? W.M. Keck Foundation funds innovative brain research at Carnegie Mellon
4. Scientist works on innovative treatments for brain tumors
5. Mechanism of RNA recoding: New twists in brain protein production
6. Does the college experience damage your brain?
7. Dartmouth researchers find where musical memories are stored in the brain
8. Common anesthetics appear safe for developing fetal brain
9. Breakthrough in medical research: New chemotherapy gives hope to brain tumour patients
10. New scale predicts recovery of consciousness from coma after brain injury
11. Study: Two brain systems regulate how we call for help

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Cheerleader brain signal may act task master Science study suggests

(Date:3/27/2015)... GrassrootsHealth, an international nonprofit public health ... NOW! vitamin D demonstration project April 7 in the ... (MUSC), and will soon follow with a second phase ... to a minimum of 500 pregnant women at 17 ... service areas. The project will include patient and health ...
(Date:3/27/2015)... Operatic contenders and their avid audience ... 17th. The universally acclaimed baritone Sherrill Milnes will be ... Idol at The Merion in Evanston. The event is ... aspiring opera singers from around the country. “This is ... finest young talent in the country,” said Margaret Gergen, ...
(Date:3/27/2015)... March 27, 2015 Approximately 300 ... Healthy Kids Coalition Lobby Day to lobby for ... Improvement Program (SHIP). Everlast Climbing was especially ... Bill SF343/HF498 which would strengthen physical education programs ... assessments and other measures to strengthen physical education ...
(Date:3/27/2015)... 2015 Airy Jeanine is a rising ... music video for her debut song “Mama’s Girl”, launched ... and abstract styling effects, the thematic video for the ... Vimeo, and assorted outlets. It will be integral in ... expanding full-scale marketing strategy. The video promotion campaign spearheaded ...
(Date:3/27/2015)... 2015 April 2015 is the 150th anniversary ... To honor America’s bloodiest war and the amazing President that ... A Tribute to the Civil War and Abraham Lincoln. This ... 2015, at the Jane Pickens Theater in Newport, RI. ... will serve as the master of ceremonies. Dr. Fred Zilian, ...
Breaking Medicine News(10 mins):Health News:GrassrootsHealth Moves Vitamin D into Practice with Pregnant Women 2Health News:GrassrootsHealth Moves Vitamin D into Practice with Pregnant Women 3Health News:GrassrootsHealth Moves Vitamin D into Practice with Pregnant Women 4Health News:Opera Idol Competition At The Merion In Evanston 2Health News:Everlast Climbing Advocates to Strengthen Physical Education in Minnesota Schools 2Health News:Airy Jeanine Releases ‘’Mama’s Girl” Official Music Video 2Health News:Relive the Civil War, the Presidency and Shocking Assassination of Abraham Lincoln through Lincoln’s Own Words and the Music of a 46-Piece Orchestra 2Health News:Relive the Civil War, the Presidency and Shocking Assassination of Abraham Lincoln through Lincoln’s Own Words and the Music of a 46-Piece Orchestra 3Health News:Relive the Civil War, the Presidency and Shocking Assassination of Abraham Lincoln through Lincoln’s Own Words and the Music of a 46-Piece Orchestra 4
(Date:3/27/2015)... According to a new market ... Advanced, Ultrasound), Ablation Catheter (Cryoablation, RF, Microwave), Lab Devices ... WPW) - Global Forecasts to 2019 ", published by MarketsandMarkets, ... ~$4.73 Billion by 2019 with a CAGR of around ... Browse   90   ma rket ...
(Date:3/27/2015)... , March 27, 2015 The International Myeloma ... myeloma patients while working toward prevention and a cure ... for introducing a federal resolution (H. Res. 174) that ... as "National Multiple Myeloma Awareness Month." Currently ... worldwide, and more than 110,000 new cases are diagnosed ...
(Date:3/27/2015)... , March 27, 2015  RXi ... privately-held MirImmune LLC, today announced that they ... to RXi,s novel and proprietary sd-rxRNA® technology ... immunotherapies. The collaboration has the potential to ... friendly cancer treatments that could be a ...
Breaking Medicine Technology:Electrophysiology (EP) Market Worth $4.73 Billion by 2019 2Electrophysiology (EP) Market Worth $4.73 Billion by 2019 3Electrophysiology (EP) Market Worth $4.73 Billion by 2019 4The International Myeloma Foundation (IMF) Secures the Introduction of a Federal Resolution Recognizing March 2015 as "National Multiple Myeloma Awareness Month" 2RXi Pharmaceuticals and MirImmune LLC Enter into an Exclusive Licensing Agreement for RXi's Self-Delivering RNAi (sd-rxRNA) Technology to Develop Cell-based Immunotherapies to Treat Cancer 2RXi Pharmaceuticals and MirImmune LLC Enter into an Exclusive Licensing Agreement for RXi's Self-Delivering RNAi (sd-rxRNA) Technology to Develop Cell-based Immunotherapies to Treat Cancer 3RXi Pharmaceuticals and MirImmune LLC Enter into an Exclusive Licensing Agreement for RXi's Self-Delivering RNAi (sd-rxRNA) Technology to Develop Cell-based Immunotherapies to Treat Cancer 4RXi Pharmaceuticals and MirImmune LLC Enter into an Exclusive Licensing Agreement for RXi's Self-Delivering RNAi (sd-rxRNA) Technology to Develop Cell-based Immunotherapies to Treat Cancer 5
Cached News: