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:
*Name:
*Comment:
*Email:


(Date:12/8/2016)... NY (PRWEB) , ... December 08, 2016 , ... ... is pleased to announce that “Natural Language Processing–Enabled and Conventional Data Capture Methods ... in JMIR Medical Informatics . , Results of the comparative usability study ...
(Date:12/8/2016)... ... 2016 , ... David J. Dykeman , Ginger Pigott , and ... speak at DeviceTalks West, Dec. 12, 2016, at the Fairmont Newport Beach in California. ... firm’s global Life Sciences & Medical Technology Group have been featured speakers at every ...
(Date:12/8/2016)... ... , ... STATEN ISLAND, N.Y., Nov. 24, 2016 — ... standards of trauma, maternity, cancer and chronic obstructive pulmonary disease (COPD) services from ... Messina. , Among the recognitions, the American College of Surgeons' (ACS) named the ...
(Date:12/8/2016)... ... 08, 2016 , ... Vida Health, the digital health platform that ... Canvas Ventures . Other investors include Nokia Growth Partners (NGP) and returning investor ... more consumers who are managing chronic conditions or simply want to improve ...
(Date:12/8/2016)... (PRWEB) , ... December 08, 2016 , ... Coppin Insurance ... owners and families in and around the Cape Coral area, is embarking on a ... Food Bank of Southwest Florida. , The Harry Chapin Food Bank of Southwest Florida ...
Breaking Medicine News(10 mins):
(Date:12/8/2016)... SAN DIEGO , Dec. 8, 2016 /PRNewswire/ ... dedicated to improving cancer patient care from diagnosis ... the company,s recently completed Phase 1b study in ... at the San Antonio Breast Cancer Symposium. ... Cancer Center at UC San Diego Health, delivered ...
(Date:12/8/2016)... , Dec. 8, 2016  Hanson Research, an ... dissolution testing and diffusion testing instruments for the ... by Teledyne Instruments, Inc. ("Teledyne"). The move is ... of precision testing instruments, as well as expand ... of new products and services. Logo - ...
(Date:12/8/2016)... , Dec. 8, 2016  Haemonetics Corporation (NYSE: ... DMS (Donor Management System), an innovative software suite designed to ... The launch of NextGen DMS 4 improves core ... reducing the cost per liter of plasma collected, enhancing quality ... plasma center operations. ...
Breaking Medicine Technology:
Cached News: