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:7/29/2014)... survivors of severe combat injuries threatening more than one ... good record of safety and effectiveness in avoiding amputation, ... Plastic and Reconstructive Surgery , the official ... Surgeons (ASPS). , Experience with multiple limb salvage ... good success rates, with no increase in complications compared ...
(Date:7/29/2014)... 29, 2014 (HealthDay News) -- Chlorine helps keep pool ... likely to develop eye infections, doctors say. ... well as blurry vision, said Dr. Sampson Davis, an ... New Jersey. It,s important to understand why this ... away the outer film layer of the eye that ...
(Date:7/29/2014)... (PRWEB) July 29, 2014 According to ... of Time Magazine titled “From Kim’s Butt to Angelina’s ... Kardashian’s butt is the celebrity feature most requested ... features include Beyoncé’s butt, Jennifer Lawrence’s nose, ... information is based on data collected by an online ...
(Date:7/29/2014)... County, NJ (PRWEB) July 29, 2014 ... two leading pediatricians have joined our network, CarePoint ... Politis and Dr. Sushma Kaki. Hundreds of highly ... Group, a comprehensive network of top doctors and ... of specialties. This latest acquisition represents CarePoint Health’s ...
(Date:7/29/2014)... New high priced hepatitis C drugs will ... projected $2.9 to $5.8 billion next year, according to ... today by the Pharmaceutical Care Management Association (PCMA). Milliman ... as much as 8.6 percent in 2015 as a ... Olysio. , The study finds that the majority of ...
Breaking Medicine News(10 mins):Health News:Good outcomes with multiple limb salvage after severe combat injuries, reports Plastic and Reconstructive Surgery 2Health News:Protect Your Eyes When Hitting the Pool 2Health News:Celebrity Plastic Surgery: Kim Kardashian’s Butt Tops the List of Celebrity Plastic Surgery Requests 2Health News:Dr. Politis and Dr. Kaki Join CarePoint Health Medical Group 2Health News:Dr. Politis and Dr. Kaki Join CarePoint Health Medical Group 3Health News:New Milliman Study: Hepatitis C Drugs Could Increase Medicare Part D Spending by $2.9 to $5.8 Billion in 2015 2
(Date:7/29/2014)... SALT LAKE CITY and ... EastGate Acquisitions Corporation (OTCBB: ESAQ), ... innovations in the development of improved novel ... biologically active molecules announces expansion of its ... company,s new development direction includes large molecule drugs ...
(Date:7/29/2014)... 2014  Based on its recent analysis of ... & Sullivan recognizes MobileHelp with the 2014 North ... Value Leadership. MobileHelp,s leadership in flexibility across in-home ... progression in personal emergency response, and exemplifies key ... MobileHelp is at the forefront of convenience ...
(Date:7/29/2014)... TAIPEI , July 29, 2014 Apex Medical ... Therapy and Pressure Area Care sectors, announces that it is ... Munich in Germany that ... patent. Apex notes that it has initiated invalidity challenges against ... continuous efforts in counterattacking against trivial and junk patents. ...
Breaking Medicine Technology:EastGate Acquisitions Announces Expansion of its Pharmaceutical Developments Implementing its Sub-Micron Platform Technology 2EastGate Acquisitions Announces Expansion of its Pharmaceutical Developments Implementing its Sub-Micron Platform Technology 3EastGate Acquisitions Announces Expansion of its Pharmaceutical Developments Implementing its Sub-Micron Platform Technology 4Frost & Sullivan Applauds MobileHelp for its Targeted Supplies for the PERS Market 2Frost & Sullivan Applauds MobileHelp for its Targeted Supplies for the PERS Market 3Apex Continues Fighting Against Patents to Free Up Competition 2
Cached News: