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:3/31/2015)... Dr. St. Ledger recently returned from yet another trip ... Here, he participated in the Worn Dentition Workshop: a ... in cases of severely worn teeth, as well as the ... correlation to GERD and Sleep Apnea. , Dr. ... After the workshop he attended, he mentored for three days ...
(Date:3/31/2015)... Dr. Uzma Parvez is having a busy start ... Grand Grounds Presentations at St. Michael’s Medical Center for attending ... The event was attended by a large gathering of ... feedback from the Grand Rounds. It was said that ... a while. , Ahead, Dr. Parvez has been invited ...
(Date:3/31/2015)... OR (PRWEB) March 31, 2015 Former 49ers ... announcement than during his first year of a promising NFL ... Sports on Earth Senior Writer Will Leitch explores ... the league. Leitch talks about the decision making process that ... the preservation of health over a large paycheck, and what ...
(Date:3/31/2015)... March 31, 2015 Greenfield Senior ... Investment Trust LLC ("Care") a seniors housing-focused real ... Inc. Care announces today, their acquisition of six ... for $54.48 million. Concurrent with the acquisition, Care ... Greenfield Senior Living ("Greenfield"). Pursuant to the lease, ...
(Date:3/31/2015)... Nashville, TN (PRWEB) March 31, 2015 ... 16 countries have united to express their shared support ... living. Part of a 'True Health Coalition' and ... has been formed to help demonstrate that, despite appearances ... among diverse experts worldwide about the theme of healthful ...
Breaking Medicine News(10 mins):Health News:The dentists at Upper Montclair Dental Associates are happy to announce exciting new happenings at their practice. 2Health News:NJ Top Docs Presents, Dr. Uzma Parvez of Total Pain Care 2Health News:Will Leitch and the Curious Case of Chris Borland on SCI TV 2Health News:Will Leitch and the Curious Case of Chris Borland on SCI TV 3Health News:Greenfield Senior Living Inc. Enters Lease Transaction with Care Investment Trust LLC 2Health News:Greenfield Senior Living Inc. Enters Lease Transaction with Care Investment Trust LLC 3Health News:GLiMMER Initiative Founder David Katz, MD Announces the Launch of the True Health Coalition: Worldwide Experts Convened to Defend Fundamentals of Healthy Eating/Living 2Health News:GLiMMER Initiative Founder David Katz, MD Announces the Launch of the True Health Coalition: Worldwide Experts Convened to Defend Fundamentals of Healthy Eating/Living 3Health News:GLiMMER Initiative Founder David Katz, MD Announces the Launch of the True Health Coalition: Worldwide Experts Convened to Defend Fundamentals of Healthy Eating/Living 4
(Date:3/31/2015)... MedSpring Urgent Care is pleased to announce the opening ... area of Upper Greenville. The center – located at 4844 Greenville ... location. Knox - Henderson , its ... since opening last fall. Additional Dallas metroplex ... and Las Colinas neighborhoods this summer. "We ...
(Date:3/31/2015)... , March 31, 2015  InMed Pharmaceuticals Inc. ... biopharmaceutical company that specializes in developing safer, more ... Paul C. Anderson , Ph.D., to its ... industry veteran who brings significant drug discovery and ... is a synthetic organic chemist by training with ...
(Date:3/31/2015)... March 31, 2015  Galmed Pharmaceuticals Ltd. (Nasdaq: ... focused on the development and commercialization of a ... diseases and cholesterol gallstones, today announced financial results ... Fourth Quarter 2014 Highlights: , ... keynote address by Professor Rohit Loomba, MD, MHSc., ...
Breaking Medicine Technology:MedSpring Urgent Care Opens New Upper Greenville Location in Dallas 2InMed Pharmaceuticals Strengthens Scientific Advisory Board 2InMed Pharmaceuticals Strengthens Scientific Advisory Board 3InMed Pharmaceuticals Strengthens Scientific Advisory Board 4Galmed Pharmaceuticals Reports Full Year 2014 Financial Results and Provides Business Update 2Galmed Pharmaceuticals Reports Full Year 2014 Financial Results and Provides Business Update 3Galmed Pharmaceuticals Reports Full Year 2014 Financial Results and Provides Business Update 4Galmed Pharmaceuticals Reports Full Year 2014 Financial Results and Provides Business Update 5Galmed Pharmaceuticals Reports Full Year 2014 Financial Results and Provides Business Update 6Galmed Pharmaceuticals Reports Full Year 2014 Financial Results and Provides Business Update 7Galmed Pharmaceuticals Reports Full Year 2014 Financial Results and Provides Business Update 8
Cached News: