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:11/24/2014)... (PRWEB) November 24, 2014 Olaparib functions ... polymerase (PARP) and is one of the first PARP ... to creating some types of melanoma, and are often ... also sometimes gives their malignancies a exclusive weaknesses, as ... to fix their DNA and allow them to proceed ...
(Date:11/24/2014)... York (PRWEB) November 24, 2014 The ... by the Family and Children's Association to ... as soap, shampoo, mouthwash and other such items.The Association's ... who are home bound, living in nursing homes, assisted ... to greatly enhance the well being of seniors throughout ...
(Date:11/24/2014)... Alberta (PRWEB) November 24, 2014 ... people each day. They break up families, ruin ... is new hope for those that suffer,” says ... scientific research is showing that our specialized nutritional ... Hardy will appear on “Mind Over Matter”, the ...
(Date:11/24/2014)... SafeHandles™ announced that they will be featured ... Jr, airing via Discovery Channel. Dates and show times ... non-invasive, replaceable, and affordable germ protective device. This segment ... and adhesives to promote hand hygiene in high traffic ... SafeHandles is the desire to make a positive impact ...
(Date:11/24/2014)... York (PRWEB) November 24, 2014 Gersowitz Libo ... that it has received national Tier recognition in the 2015 ... Achieving a tiered ranking signals a unique combination of quality ... very proud to receive this honor and especially grateful to ... this important honor and ranking possible,” said Jeff S. Korek, ...
Breaking Medicine News(10 mins):Health News:Olaparib Industry (CAS 763113-22-0) 2009-2019 Global and China Research Reports is Now Available at RnRMarketResearch.com 2Health News:Olaparib Industry (CAS 763113-22-0) 2009-2019 Global and China Research Reports is Now Available at RnRMarketResearch.com 3Health News:Olaparib Industry (CAS 763113-22-0) 2009-2019 Global and China Research Reports is Now Available at RnRMarketResearch.com 4Health News:The Holiday Inn Westbury - Long Island gives back to the local Long Island community, and also goes beyond borders to assist those in need during the 2014 Holiday Season 2Health News:The Holiday Inn Westbury - Long Island gives back to the local Long Island community, and also goes beyond borders to assist those in need during the 2014 Holiday Season 3Health News:Nutritional Mental Health Treatment Featured on Access Health Airing on Lifetime Television® 2Health News:Nutritional Mental Health Treatment Featured on Access Health Airing on Lifetime Television® 3Health News:New Episode of Innovations TV Series to Feature SafeHandles™ 2Health News:U.S. News-Best Lawyers “Best Law Firms” Names Gersowitz Libo & Korek P.C. a 2015 Tier 1 Ranking Firm 2
(Date:11/22/2014)... -- MEDITE Group acquired by CytoCore, Inc. (OTCBB: CYOE) on ... quarter sales ended September 30, 2014 of $8.7 million ... months ended September 2014 and a $38,000 loss for the ... quarter is usually a seasonable weak period due to the ... many countries worldwide, we are proud to announce record sales ...
(Date:11/21/2014)... -- Alere Inc. (NYSE: ALR ), a global ... Cunningham as Vice President, Investor Relations. In this ... communications with the investment community. "As we ... increase shareholder value, it is critical that we effectively ... Executive Officer. "We are delighted that Juliet Cunningham ...
(Date:11/21/2014)... Nov. 21, 2014 In September 2014, the ... carried out a new product development plan that started ... "limited edition" lab coat , aptly named "Vera ... surgery in the world. The new women,s designer lab ... with a sleek envelope collar, vertical princess and high ...
Breaking Medicine Technology:CytoCore Inc. / MEDITE Cancer Diagnostics, Inc. Reports Record YTD and 3rd Quarter Sales 2CytoCore Inc. / MEDITE Cancer Diagnostics, Inc. Reports Record YTD and 3rd Quarter Sales 3Alere Appoints Juliet Cunningham to Lead Investor Relations 2Medelita Introduces Medical Industry's First Limited Edition Women's Designer Lab Coat 2
Cached News: