NOW:53208:USA01012
http://widgets.journalinteractive.com/cache/JIResponseCacher.ashx?duration=5&url=http%3A%2F%2Fdata.wp.myweather.net%2FeWxII%2F%3Fdata%3D*USA01012
52°
H 52° L 52°
Cloudy | 0MPH

The Concussed Brain at Work: fMRI Study Documents Brain Activation During Concussion Recovery

Aug. 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 later—suggesting 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 http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8952254.

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.

This site uses Facebook comments to make it easier for you to contribute. If you see a comment you would like to flag for spam or abuse, click the "x" in the upper right of it. By posting, you agree to our Terms of Use.

Suburban News Roundup

E-mail Newsletter

Your link to the biggest stories in the suburbs delivered Thursday mornings.


Enter your e-mail address above and click "Sign Up Now!" to begin receiving your e-mail newsletter
Get the Newsletter!

Login or Register to manage all your newsletter preferences.

Community Watch

» Longfellow hosting Wauwatosa's Memorial Day ceremony Monday 5/21

» Choice school, dry cleaning issues held for more discussion in Wauwatosa 5/20

» Parents rally after lawmakers expand vouchers 5/20

» Wauwatosa approves conceptual design for pocket park on North Avenue Updated:  5/20

» Wauwatosa hotel site sells for $925,000 5/20

» Tosa Tonight releases lineup for summer concert series 5/19

» Wauwatosa School Board approves raises for teachers, administrators and staff 5/19

» Wauwatosa Avenue lane to close over Memorial Day weekend 5/18

» Residents invited to help redesign streets, parks in Wauwatosa Village 5/15

» Wauwatosa alderman pulls proposal to shrink common council 5/15

» Police arrest teens for prowling after foot chase through Wauwatosa Updated:  5/14

» Initial Reaction Podcast: Massive overhaul of area conferences could be afoot 5/13

» Beer garden at Hoyt Park in Tosa reopens Wednesday, may go indoors too 5/12

» Winter's not through with us yet 5/12

» Wauwatosa mayor named to MMSD governing commission 5/11

» Police say motorcyclist riding without helmet injured in Wauwatosa collision 5/7

» Ex-Wauwatosa school board vice president 'disheartened by political dissonance' in community Updated:  5/6

» Wauwatosa celebrating Bike to School Day Wednesday 5/5

» Wauwatosa alderman proposes cutting four seats on Common Council 5/4

» East kickers blank Tosa West, 2-0 5/2

» Investigation: Family behind collapsed Falls building has a history of neglecting properties Updated:  5/1

» Wauwatosa's Lady in Red reopens as Nikki's Boutique after remodel 4/30

» Exactly 175 years ago, Wauwatosa became a town 4/30

» Tosa Recreation Dept. to hold textile recycling event 4/29

» Wauwatosa parents ask Sen. Leah Vukmir to increase education funding 4/27

View All Posts Got a tip? Welcome rss

Advertisement

Advertisement

Hidden Tosa

 

"Hidden Tosa" is a semi-regular feature where reporter Rory Linnane explores the closed down and closed off parts of Wauwatosa.

2015 Writing Contest

 

(Click image for details)

Local Business Directory

CONNECT