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:6/24/2016)... ... June 24, 2016 , ... Marcy was in a crisis. Her son James, eight, ... at his family verbally and physically. , “When something upset him, he couldn’t control his ... it. He would throw rocks at my other children and say he was going to ...
(Date:6/24/2016)... , ... June 24, 2016 , ... Global law firm ... 2016 Legal Elite. The attorneys chosen by their peers for this recognition are considered ... Seven Greenberg Traurig Shareholders received special honors as members of this year’s Legal Elite ...
(Date:6/24/2016)... ... 24, 2016 , ... Comfort Keepers® of San Diego, CA is excited to ... Recovery® program to drive cancer patients to and from their cancer treatments. Comfort ... quality of life and ongoing independence. Getting to and from medical treatments is ...
(Date:6/24/2016)... Plano, TX (PRWEB) , ... June 24, 2016 , ... ... taking part in Genome magazine’s Code Talker Award, an essay contest in which patients ... for an award to be presented at the 2016 National Society of Genetic Counselors ...
(Date:6/24/2016)... ... June 24, 2016 , ... The Haute Beauty Network, affiliated ... Weintraub as a prominent plastic surgeon and the network’s newest partner. , ... most handsome men, look naturally attractive. Plastic surgery should be invisible.” He stands ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... OAKLAND, N.J. , June 24, 2016 /PRNewswire/ ... in the design, development and manufacturing of collagen ... and regeneration announced today that Bill Messer ... Sales and Marketing to further leverage the growing ... surgery medical devices. Bill joins the ...
(Date:6/24/2016)... 24, 2016 ... the addition of the " Global Markets for ... This report focuses on ... updated review, including its applications in various applications. The ... which includes three main industries: pharmaceutical and biotechnology, food ...
(Date:6/24/2016)... June 24, 2016 Dehaier Medical Systems Ltd. ... which develops, markets and sells medical devices and wearable ... signed a strategic cooperation agreement with Hongyuan Supply Chain ... Chain") on June 20, 2016, to develop Dehaier,s new ... cooperation agreement, Dehaier will leverage Hongyuan Supply Chain,s sales ...
Breaking Medicine Technology: