HOME >> MEDICINE >> NEWS
Brain study considers motor function, cognition with alcohol consumption

Dartmouth researchers are learning more about the effects of alcohol on the brain. They've discovered more about how the brain works to mask or suppress the impact that alcohol has on motor skills, like reaching for and manipulating objects. In other words, the researchers are learning how people process visual information in concert with motor performance while under the influence of alcohol.

"We found that the brain does a pretty good job at compensating for the effect that alcohol has on the brain's ability to process the visual information needed to adjust motor commands," says John D. Van Horn, a research associate professor of psychological and brain sciences and the lead author on the paper. "Alcohol selectively suppresses the brain areas needed to incorporate new information into subsequent and correct motor function."

For the study, eight people, ranging in age from 21-25, were asked to maneuver a joy stick both while sober and when experiencing a blood alcohol level of 0.07 percent (just below the legal definition of intoxicated). Brain activity during this task was captured using functional magnetic resonance imaging, known as fMRI. The study was published online in the journal NeuroImage on March 6, 2006.

The study found that alcohol selectively suppresses cognitive activity in the frontal and posterior parietal brain regions; these are regions most commonly associated with the brain's ability to monitor and process visuomotor feedback. Van Horn explains that this study is one of the first ever to directly illustrate this suppression effect in the brain in humans using neuroimaging.

"We know that alcohol has a global effect on the brain. This study was unique in that it isolated the specific network that underlies the processing and translation of visual and motor commands. The poor coordination one feels after a couple of drinks is due to the poor feedback processing in brain areas critical for updating the mental models
'"/>

Contact: Sue Knapp
Sue.Knapp@Dartmouth.edu
603-646-3661
Dartmouth College
25-Apr-2006


Page: 1 2

Related medicine news :

1. Brain-boosting pill alleviates post-chemotherapy fogginess
2. Brain inflammation may be friend, not foe, for Alzheimers patients
3. Brain activity reflects differences in types of anxiety
4. Brain research poised to dramatically advance global society
5. Elsevier announces launch of Brain Stimulation
6. Brains scans of symptomatic Gulf War veterans show differences
7. Brain structure changes years before memory loss begins
8. Brain studies reveal the mechanisms of the voluntary control of visual attention
9. Brains can recover from alcoholic damage but patients should stop drinking as soon as possible
10. Brain images show hysteria not an imaginary disorder
11. Brain changes in patients with migraine

Post Your Comments:
(Date:10/25/2014)... 2014 (HealthDay News) -- October,s shorter, darker days can ... disorder, according to an expert. People affected ... overly tired, lack motivation and even have trouble getting ... to suicide, said Dr. Angelos Halaris, a professor in ... University Chicago Stitch School of Medicine. "Seasonal affective ...
(Date:10/22/2014)... On October 22, CBS will air ... diseases both fictional and real. The Charles E ... committed to advocacy and philanthropy in the battle against ... opportunity to impart truth and clarity about this misunderstood ... many misconceptions about Morgellons Disease (MD) and ...
(Date:10/22/2014)... For Dr. Iris Hunter, a job is more ... of her life’s mission. Her extensive experience in the nonprofit ... FirstLight HomeCare, make it clear that Hunter’s mission is to ... work makes a difference in the lives of others,” Hunter ... much research, I felt ready to start on this journey ...
(Date:10/22/2014)... 2014 Shriners Hospitals for Children® and ... the current location of Shriners Hospitals for Children - ... from the University of Kentucky Albert B. Chandler Hospital. ... center, owned and operated by Shriners Hospitals for Children, ... children and their families well into the future. , ...
(Date:10/22/2014)... 22, 2014 With the Affordable Care Act ... by the American Institutes for Research (AIR) finds that three ... use health insurance, but 42 percent say they are not ... before signing up for coverage. , The AIR survey found ... percent able to calculate correctly how much they owe for ...
Breaking Medicine News(10 mins):Health News:Dark Days Here for Folks With Seasonal Depression 2Health News:CBS’ Criminal Minds takes aim at skin disease with Morgellons in the Mix 2Health News:CBS’ Criminal Minds takes aim at skin disease with Morgellons in the Mix 3Health News:Dr. Iris Hunter to Host Grand Opening of FirstLight HomeCare Tomorrow 2Health News:Shriners Hospitals for Children - Lexington Announces Plan to Build New $47 Million Facility 2Health News:Shriners Hospitals for Children - Lexington Announces Plan to Build New $47 Million Facility 3Health News:Many Americans Fail to Ask Basic Questions Before Signing Up for Health Insurance, National Survey Finds 2Health News:Many Americans Fail to Ask Basic Questions Before Signing Up for Health Insurance, National Survey Finds 3Health News:Many Americans Fail to Ask Basic Questions Before Signing Up for Health Insurance, National Survey Finds 4
(Date:10/25/2014)... 2014 Burzynski Research Institute, Inc. (BRI) announced ... has given the company permission to conduct an open-label ... 3 months of age with a diffuse intrinsic brainstem ... of five treatment groups based on their age and ... DIPG. The primary study endpoint is a decrease in ...
(Date:10/22/2014)... 22, 2014  Cephasonics, a technology-innovation leader with a ... cQUB™-1 (cQuest Ultrasound Box™-1), the first product in a ... manufactured by Cephasonics for purchase by companies to rebrand ... will be showcasing the cQUB-1 for the first time ... Chongqing, China from October 23 ...
(Date:10/22/2014)... 22, 2014 Antigen Discovery Inc. (ADi), a ... , announced the receipt of a National Institutes of ... from the National Institute of Dental and Craniofacial Research (NIDCR). ... a Pan-HIV Protein Microarray Chip, which will contain every ... and aid in the development of safe and effective ...
Breaking Medicine Technology:Burzynski Research Institute, Inc. Announces FDA Permission to Launch a New Clinical Trial in Diffuse Intrinsic Brainstem Glioma 2Cephasonics Launches the cQUB-1, First Product in New Family of cQUB White-Label Ultrasound Systems Targeted at Medical Applications 2Cephasonics Launches the cQUB-1, First Product in New Family of cQUB White-Label Ultrasound Systems Targeted at Medical Applications 3Biomarker Discovery Company, Antigen Discovery Inc., Awarded an NIH Phase I Small Business Innovation Research Grant to Develop a Pan-HIV Protein Microarray Chip 2
Cached News: