Navigation Links
Rat Study Sheds Light on How Alcohol Affects Young Brain
Date:3/17/2011

THURSDAY, March 17 (HealthDay News) -- Based on the results of a new study conducted with rats, researchers say that kids who drink alcohol may have trouble with decision-making in adulthood.

Alcohol consumption during adolescence can change the perception of risk but does not affect how rewards are valued, the University of Washington researchers found.

The investigators studied decision-making in adult rats that had been given free access to alcohol when they were adolescents. The researchers measured changes in the neurotransmitter dopamine when the rats were offered rewards alone and also in response to cues predicting risky or certain outcomes.

"Dopamine is central to the way we process and evaluate rewards and is the primary target in the brain for virtually all abused drugs," study author Jeremy J. Clark, an acting assistant professor of psychiatry and behavioral sciences, explained in a university news release.

In the rats, alcohol use during adolescence increased dopamine signaling to risky options but did not affect responses to rewards.

"Alcohol is corrupting the ability to make a good decision by altering the perception of risk. It doesn't appear to be about the reward," Clark said.

The study was published March 14 in the journal Proceedings of the National Academy of Sciences.

The study authors noted that the findings might lead to improved treatments for those with a history of substance abuse.

More information

The U.S. National Institute on Alcohol Abuse and Alcoholism has more about underage drinking.

-- Robert Preidt

SOURCE: University of Washington, news release, March 14, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Page: 1

Related medicine news :

1. Despite Treatment, Employees with Depression Generate Higher Absentee Costs, According to Thomson Reuters Study
2. American Council on Exercise (ACE) Study Reveals Kettlebells Provide Powerful Workout in Short Amount of Time
3. TV drama can be more persuasive than news program, study finds
4. Study carried out into biological risks of eating reptiles
5. Neuroimaging study may pave way for effective Alzheimers treatments
6. Study finds racial gaps continue in heart disease awareness
7. Luth Researchs IndicatorEDG(TM) Study Finds Americans Hopes of Achieving Their Dreams Are Fading
8. First blinded study of venous insufficiency prevalence in MS shows promising results
9. Soothing infants with food focus of childhood obesity study
10. People with anxiety disorder less able to regulate response to negative emotions, study shows
11. American Heart Association Rapid Access Journal Report: Study Finds Racial Gaps Continue in Heart Disease Awareness, Low Knowledge of Heart Attack Warning Signs Among Women
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Rat Study Sheds Light on How Alcohol Affects Young Brain
(Date:3/22/2017)... ... March 22, 2017 , ... HealthiPASS, Inc., announces ... creating a positive patient experience. , HealthiPASS has further enhanced its predictive ... by helping them understand their financial responsibility. “Our latest release focuses on ...
(Date:3/22/2017)... CA (PRWEB) , ... March 22, 2017 , ... Nearly ... should not undergo PSA (prostate-specific antigen) screening, the cancer screening continues to stir controversy. ... 2008 because it found that the risks outweighed the benefits. Now, news from ...
(Date:3/22/2017)... ... , ... The National Association for Business Resources (NABR) has recently ... in Wellness® companies for 2017. , American Specialty Health (ASH) was honored ... for its employees. ASH is one of only nine other San Diego companies being ...
(Date:3/22/2017)... ... March 22, 2017 , ... Winter ... reduces pigmentation to enhance surgical and nonsurgical procedures—Lytera 2.0 by SkinMedica. Lytera 2.0 ... the face, neck and décolletage in as little as 4 weeks. Skin pigmentation ...
(Date:3/20/2017)... ... ... The topic of healthcare in America has become one of the most ... is that they are still left without the health insurance coverage they need in ... that an unfortunate side-effect of this scenario is that hospital emergency rooms and urgent ...
Breaking Medicine News(10 mins):
(Date:3/22/2017)... , March 22, 2017 ... the growing legal cannabis industry is strongly contributing to ... provides comprehensive analysis and reporting for the cannabis industry, ... create more than a quarter million jobs for American ... $7.2 billion in 2016, and is projected to grow ...
(Date:3/22/2017)... March 22, 2017  As the world,s leading non-profit ... Society (LLS) has played a role in most therapies ... which are even helping patients with other cancers and ... significant investment in cutting-edge research – more than $1 ... grow with the record-breaking sum of $4.1 million raised ...
(Date:3/22/2017)... SANTA CLARA, Calif. , March 22, 2017 ... diagnostic cardiology  solutions segment, Frost & Sullivan recognizes ... Sullivan Company of the Year Award. GE Healthcare,s ... offer end-to-end cardiac solutions has allowed it to ... competitive cardiac monitoring products space. In addition to ...
Breaking Medicine Technology: