HOME >> MEDICINE >> NEWS
Dopamine key to learning likes and dislikes, says Colorado U. team

For those who have wondered why they like or dislike certain things, or how they decide what to order from a menu, a team of researchers at the University of Colorado at Boulder says it's dopamine.

A CU-Boulder team studying Parkinson's disease patients found strong evidence that dopamine in the brain plays a key role in how people implicitly learn to make choices that lead to good outcomes, while avoiding bad ones.

The finding could help researchers understand more about how the brain works and could lead to a better understanding and treatment of brain disorders like schizophrenia, according to CU-Boulder psychology graduate student Michael Frank, who led the study.

A paper on the subject by Frank, CU-Boulder psychology Associate Professor Randall O'Reilly and Lauren Seeberger of the Colorado Neurological Institute's Movement Disorders Center appears in the Nov. 5 issue of Science Express, an online version of Science magazine.

Often people will get a "gut feeling" that allows them to make a choice depending on how often it was associated with positive outcomes in the past. But people with Parkinson's disease often have difficulty making these kinds of choices, Frank said.

To understand why, they developed a computer model of the effects of Parkinson's disease and the medications used to treat it in the brain. From this model they predicted that Parkinson's patients would differ in their decision making depending on whether or not they were taking their medication, which they confirmed in a subsequent study.

They found that patients on their medication were overly influenced by positive outcomes, while those who were off their medication were more influenced by negative outcomes, according to Frank.

"Because Parkinson's disease is caused by lower levels of the brain chemical dopamine, and the medications increase concentrations of this chemical, these results provide strong evidence that dop
'"/>


4-Nov-2004


Page: 1 2 3

Related medicine news :

1. Its a gamble: Dopamine levels tied to uncertainty of rewards
2. Dopamine may play role in cue-induced craving distinct from its role regulating reward effects
3. New Findings On Dopamine Receptor Biology: Implications For Mental Illness
4. Breakthrough? Study Finds Dopamine Cannot Be Source Of Pleasure In Brain
5. Molecule important in cell construction also critical in learning and memory
6. Auditory test to help identify learning impaired
7. Discovery of pathway in learning impairment caused by liver disease may lead to drug treatment
8. Scents and emotions linked by learning, Brown study shows
9. Early learning leaves lasting changes in brain, Stanford owl study shows
10. Epilepsy associated with higher risk for learning disabilities
11. Medical residents report sleep loss and fatigue take toll on learning, work and personal lives

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:12/9/2019)... ... December 09, 2019 , ... ... solutions that help food and manufacturing companies engage with their workforces to ... turnkey solution helps manufacturers build a cohesive culture that is designed to ...
(Date:12/8/2019)... , ... December 07, 2019 , ... More than 85 ... a recent report from the American Academy of Dermatology, indicating this problem is more ... upward trend during the years to come. These dermatological conditions vary in type and ...
(Date:12/8/2019)... SEATTLE (PRWEB) , ... December 08, 2019 , ... ... higher education planning, has announced the Top 52 Best Homeland Security Degree Programs ... accredited colleges and universities in the nation. Each program is evaluated based on ...
(Date:12/6/2019)... ... 2019 , ... Connecticut is home to a growing healthcare ... On December 12th, Hartford Business Journal will recognize eight individuals and organizations who ... the Hartford Marriott. , “We are fortunate to have so many great providers ...
(Date:12/6/2019)... , ... December 06, 2019 , ... Lasair Aesthetic Health Sponsors Toys for Tots to ... of Botox to Patients Who Bring in Toys During the Holidays , Lasair Aesthetic Health ... now until Christmas, patients who bring in a toy or toys worth more than 25-dollars, ...
Breaking Medicine News(10 mins):
(Date:12/5/2019)... ... December 05, 2019 , ... Intelligent.com, a ... Top 27 Respiratory Therapy Degree Programs for 2020. The comprehensive research guide is ... Each program is evaluated based on curriculum quality, graduation rate, reputation, and post-graduate ...
(Date:12/5/2019)... ... December 05, 2019 , ... nView, a leading behavioral health ... role of Chief Product Officer. As the company expands its portfolio of software ... behavioral health market into nView’s product and company growth strategy. Rosenbaum will report ...
(Date:12/4/2019)... LAKE FOREST, Calif. (PRWEB) , ... December 04, ... ... medical technology company providing healthcare professionals with minimally invasive technologies to treat chronic ... 100,000 procedures performed with the Tenex Health TX® technology. , Dr. ...
Breaking Medicine Technology:
Cached News: