Navigation Links
The concussed brain at work: fMRI study documents brain activation during concussion recovery
Date:8/19/2013

For the first time, researchers have documented irregular brain activity within the first 24 hours of a concussive injury, as well as an increased level of brain activity weeks latersuggesting that the brain may compensate for the injury during the recovery time.

The findings are published in the September issue of the Journal of the International Neuropsychological Society.

Thomas Hammeke, PhD, professor of psychiatry and behavioral medicine at the Medical College of Wisconsin, is the lead author. Collaborators at the Cleveland Clinic; St. Mary's Hospital in Enid, Okl.; the University of North Carolina; Franklin College in Franklin, Ind., and the Marshfield Clinic in Marshfield, Wis., co-authored the paper.

To study the natural recovery from sports concussion, 12 concussed high school football athletes and 12 uninjured teammates were evaluated at 13 hours and again at seven weeks following concussive injury.

The concussed athletes showed the expected postconcussive symptoms, including decreased reaction time and lowered cognitive abilities. Imaging via fMRI (functional magnetic resonance imaging) showed decreased activity in select regions of the right hemisphere of the brain, which suggests the poor cognitive performance of concussion patients is related to that underactivation of attentional brain circuits.

Seven weeks post-injury, the concussed athletes showed improvement of cognitive abilities and normal reaction time. However, imaging at that time showed the post-concussed athletes had more activation in the brain's attentional circuits than did the control athletes.

"This hyperactivation may represent a compensatory brain response that mediates recovery," said Dr. Hammeke. "This is the first study to demonstrate that reversal in activation patterns, and that reversal matches the progression of symptoms from the time of the injury through clinical recovery."

"Deciding when a concussed player should return to the playing field is currently an inexact science," said Dr. Stephen Rao, director of the Schey Center for Cognitive Neuroimaging at the Cleveland Clinic and a senior author. "Measuring changes in brain activity during the acute recovery period can provide a scientific basis for making this critical decision."

Each year, an estimated 3.8 million people sustain a traumatic brain injury (TBI). TBI is a contributing factor to a third of all injury-related deaths in the United States. More than three-quarters of the TBI's that occur are concussions or other forms of mild TBI, many of which may go undiagnosed.


'/>"/>

Contact: Maureen Mack
mmack@mcw.edu
414-955-4744
Medical College of Wisconsin
Source:Eurekalert

Related medicine news :

1. New MR analysis technique reveals brain tumor response to anti-angiogenesis therapy
2. St. Onge Company Named 2013 Great Chain Partner by SupplyChainBrain
3. Autistic kids who best peers at math show different brain organization, Stanford/Packard study shows
4. Remembering to remember supported by 2 distinct brain processes
5. Unlock The Brain’s Fundamental Nutrition and Necessities with Dr. Bob, “The Drugless Doctor”
6. Donated 2014 Ford Shelby Raises $500,000 for Brain Injury Association of America
7. Theres life after radiation for brain cells
8. Inaugural Barn Bash a Celebration of Life for 16 Year Brain Cancer Survivor in West Linn Oregon
9. Brain Monitoring Market to reach $1.63 Billion - 2017 at a 8.06% CAGR - New Report by MarketsandMarkets
10. Brain dopamine may serve as a risk marker for alcohol use disorders
11. Alcoholism could be linked to a hyper-active brain dopamine system
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/12/2016)... ... February 12, 2016 , ... Every winter, someone is killed, injured or ... West Penn Burn Center, part of the Allegheny Health Network, has partnered with ... the “Space Heaters Need Space” campaign. , “Space Heaters Need Space” aims ...
(Date:2/12/2016)... ... February 12, 2016 , ... AssureVest Insurance Group, a locally owned ... charity drive that will raise funds earmarked to purchase computers and software for Mrs. ... , “My school is in a low-income area and has more than 60 2nd ...
(Date:2/12/2016)... ... ... Vail knee specialist Robert LaPrade, MD, PhD was named one ... consists of physicians establishing, leading and partnering with ambulatory surgery centers across the United ... Center, also known as an ASC, is a modern health care facility focused on ...
(Date:2/12/2016)... ... February 12, 2016 , ... Young Asset Protection, a full ... of the latest charity campaign in their community enrichment program. Art Expression utilizes ... worthy cause are currently being accepted at: http://artexpressioninc.org/ . , Art Expression ...
(Date:2/12/2016)... ... February 12, 2016 , ... Miami Dental Specialists is excited to bring patients ... office. Beginning in January, Miami Dental Specialists will offer the non-metal implants as a ... office to be chosen by the dental implant manufacturer, Straumann, to bring this cutting-edge ...
Breaking Medicine News(10 mins):
(Date:2/12/2016)... , Feb. 12, 2016  Aralez Pharmaceuticals Inc. (Nasdaq: ... announced the Company will ring the Nasdaq Closing Bell ... New York at 4:00 p.m. ET on ... Aralez. Adrian Adams , will perform ... 3:50 to 4:00 p.m. ET.  A live webcast will ...
(Date:2/12/2016)... , 12 februari 2016 ... een toonaangevende leverancier van productie en ontwikkeling ... industrieën, kondigt vandaag een uitbreiding aan van ... haar locatie in Charleston, SC ... geleid tot meerdere recente investeringen. ...
(Date:2/12/2016)... 2016 Indiso ltd ... ungedeckten medizinischen Bedarf bei Lungen- und Atemwegserkrankungen ... Forschungsprogramms bekannt. Das Programm, das sich mit ... respiratorischen Funktionen und anderer klinischer Parameter. ... das sich auf den ungedeckten medizinischen Bedarf ...
Breaking Medicine Technology: