Brain size may yield clues to anorexia - WICU12 HD WSEE Erie, PA News, Sports, Weather and Events

Brain size may yield clues to anorexia

Updated: Aug 28, 2013 03:06 PM
© Hemera / Thinkstock © Hemera / Thinkstock

WEDNESDAY, Aug. 28 (HealthDay News) -- Teens with anorexia nervosa have bigger brains than those without the eating disorder, a finding that suggests biology may play a larger role in the condition than realized.

Specifically, the teenage girls with anorexia had a larger insula, a part of the brain that is active when you taste food, and a larger orbitofrontal cortex, the part of the brain that tells you when to stop eating, said researchers from the University of Colorado School of Medicine.

"While eating disorders are often triggered by the environment, there are most likely biological mechanisms that have to come together for an individual to develop an eating disorder such as anorexia nervosa," Dr. Guido Frank, an assistant professor of psychiatry and neuroscience, said in a university news release.

Anorexia causes people to lose more weight than is considered healthy. Larger volume in the orbitofrontal cortex could be a trait that causes these people to stop before they've eaten enough, the study suggests. And the right insula, which integrates body perception, might contribute to the sense of being fat despite being underweight.

The small study included 19 teen girls with anorexia and 22 teen girls without the disorder who underwent MRI brain scans. The findings were published recently in the Journal of the American Academy of Child and Adolescent Psychiatry.

Frank said similar results in children with anorexia nervosa and in adults who had recovered from the disease raise the possibility that insula and orbitofrontal cortex brain size could increase a person's risk of developing an eating disorder. This study did not, however, prove a cause-and-effect relationship between the two.

More information

The U.S. National Institute of Mental Health has more about eating disorders.

Copyright © 2013 HealthDay. All rights reserved.

*DISCLAIMER*: The information contained in or provided through this site section is intended for general consumer understanding and education only and is not intended to be and is not a substitute for professional advice. Use of this site section and any information contained on or provided through this site section is at your own risk and any information contained on or provided through this site section is provided on an "as is" basis without any representations or warranties.
Powered by WorldNow
3514 State St. Erie, PA 16508
Newsroom: (814)454-8812
Toll Free: 1(800)454-8812
Business offices: (814)454-5201
WICU FCC Filing
WSEE FCC Filing
Share:
Share Stories
Submit your stories to our site!
Share Photos
Share your photos in our community galleries
Mobile:
Mobile Site
Be sure to stay constantly updated with the power of WICU12 and WSEE at your fingertips
Free Android App
Free iPhone App
Free iPad App
Storm Tracker App
Droid
iPhone
iPad
All content © Copyright 2000 - 2014 WorldNow and WICU. All Rights Reserved.
For more information on this site, please read our Privacy Policy and Terms of Service.
                   WICU/WSEE - 3514 State Street Erie, PA 16508 - (814) 454-5201 - info@wicu12.com