HOME >> BIOLOGY >> NEWS
Adolescent brains show reduced reward anticipation

Adolescents show less activity than adults in brain regions that motivate behavior to obtain rewards, according to results from the first magnetic resonance imaging (MRI) study to examine real-time adolescent response to incentives. The study also shows that adolescents and adults exhibit similar brain responses to having obtained rewards. Researchers in the Laboratory of Clinical Studies of the National Institute on Alcohol Abuse and Alcoholism (NIAAA), one of the National Institutes of Health, conducted the study, which appears in the February 25 issue of the Journal of Neuroscience (Volume 24, Number 7).

"Understanding adolescent motivation is critical for understanding why so many young people drink alcohol and engage in associated behaviors such as drinking and driving and sexual risk-taking. That understanding also will be critical for shaping prevention messages that deter such behaviors," said Ting-Kai Li, M.D., Director, National Institute on Alcohol Abuse and Alcoholism. "With today's report, researchers in NIAAA's Laboratory of Clinical Studies provide an important part of the picture."

In the MRI study, James Bjork, Ph.D., and others in the laboratory of Daniel Hommer, M.D., scanned the brains of twelve adolescents aged 12 to 17 years and twelve young adults aged 22 to 28 years. While being scanned, the subjects participated in a game-like scenario risking monetary gain or loss. The participants responded to targets on a screen by pressing a button to win or avoid losing 20 cents, $1, or $5.

For both age groups, the researchers found that the anticipation of potential gain activated portions of the ventral striatum, right insula, dorsal thalamus, and dorsal midbrain, with the magnitude of ventral striatum activation sensitive to gain amount. In adolescents, however, the researchers found lower activation of the right ventral striatum centered in the nucleus accumbens, a region at the base of the brain shown by earlier research (
'"/>

Contact: Ann Bradley
abradley@mail.nih.gov
301-443-0595
NIH/National Institute on Alcohol Abuse and Alcoholism
25-Feb-2004


Page: 1 2

Related biology news :

1. Adolescent rodents experience milder hangover effects than do adult rodents
2. Adolescent girls who consume more calcium weigh less
3. Adolescents raised on strict macrobiotic diet show vitamin B12 deficiency and impaired cognitive function
4. Study Indicates Adolescent Smokers Are More Susceptible To Long-Term DNA Damage From Smoking Than Adults Smokers
5. Largest Generation Of Adolescents Faces Reproductive Health Risks
6. Female Adolescents Need Calcium During Window Of Opportunity
7. Decreasing toxins in brains of Alzheimers patients keep cognitive deficits at bay
8. Wasps brains enlarge as they perform more demanding jobs
9. U. of Colorado professor pioneering tissue engineering from knees to hearts to brains
10. New study suggests brains of autistic children can be trained to recognize faces
11. A tale of mice and men and how brains develop

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


(Date:11/19/2019)... ... 19, 2019 , ... The inaugural Cell & Gene Therapy Day takes place ... one-day event will be chaired by Dr Aiman Shalabi, VP R&D, Cell and Gene ... “We are witnessing significant innovation in cell and gene therapies, and we are at ...
(Date:11/12/2019)... ... November 12, 2019 , ... In’Tech Medical SAS ( ... the creation of a Global Regulatory Affairs Department, to support Medical Device companies ... the regulatory element to any Medtech organization is more important than Research & ...
(Date:11/12/2019)... , ... November 12, 2019 , ... ... air and water purifiers, announced today that distributors voted their patented automatic and ... MEGATRON ® water purifiers. , The most frequent maintenance task required of an ...
Breaking Biology News(10 mins):
(Date:11/5/2019)... ... November 05, 2019 , ... Focal Healthcare ... Mark for its Fusion Bx 2.0 prostate fusion biopsy solution. By combining information ... Bx 2.0 will give urologists across Europe the ability to perform targeted transrectal ...
(Date:11/2/2019)... , ... October 31, 2019 , ... ... by pharma artificial intelligence pioneer tellic. drug360 brings tellic’s expertise in biomedical ... tool allows researchers to quickly uncover relationships between genes, diseases, variants, phenotypes, and ...
(Date:10/29/2019)... ... October 29, 2019 , ... ... its Silver sponsorship and cold chain validation workshop at the Biomanufacturing World Summit ... San Diego, California. , The Biomanufacturing World Summit brings together pharmaceutical ...
(Date:10/22/2019)... ... ... Catalent, a global leader in clinical supply services, today announced that Ann McMahon, ... panel session titled “Cell and Gene Therapy Logistics” at the upcoming Health and Personal ... 28-30, 2019. , The panel session, on Wednesday, Oct. 30 at 8:30 a.m., comes ...
Breaking Biology Technology:
Cached News: