Navigation Links
Brain Activity Points to Origins of Anorexia
Date:12/3/2007

MRI scans reveal differences in neurological reward responses

MONDAY, Dec. 3 (HealthDay News) -- Women who've had anorexia nervosa have markedly different brain activity patterns than those who've never had the eating disorder, a new study suggests.

A team at the University of Pittsburgh School of Medicine used functional MRI to monitor brain activity in 13 young women who'd recovered from anorexia -- defined as maintaining a normal body weight and regular menstrual cycles for at least one year. They then compared them to 13 women who had never had anorexia.

The women's brains were scanned while they played a guessing game on a computer. Correct answers yielded a $2 reward, while incorrect guesses resulted in the loss of $1.

"During the game, brain regions lit up in different ways for women who formerly had anorexia compared to healthy controls," study first author Dr. Angela Wagner said in a prepared statement. "While the brain region for emotional responses showed strong differences for winning and losing in healthy women, women with a past history of anorexia showed little difference between winning and losing. For anorexics, then, perhaps it is difficult to appreciate immediate pleasure if it does not feel much different from a negative experience."

The results of this study, published in the December issue of the American Journal of Psychiatry, suggest that the women with a history of anorexia were more focused on the consequences of their choices during the guessing game.

This kind of research can provide new clues about why people with anorexia are able to deny themselves food and other immediately rewarding pleasures, and improve understanding of why some women (typically worriers and perfectionists in childhood) are at greater risk for the eating disorder.

More information

The U.S. National Women's Health Information Center has more about anorexia nervosa.



-- Robert Preidt



SOURCE: University of Pittsburgh Schools of the Health Sciences, news release, Dec. 1, 2007


'/>"/>
Copyright©2007 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Draining away brains toxic protein to stop Alzheimers
2. Vision restoration therapy shown to improve brain activity in brain injured patients
3. Clinical depression linked to abnormal emotional brain circuits
4. Brain imaging reveals breakdown of normal emotional processing
5. Brain cells work differently than previously thought
6. Vaccine Stops Alzheimers Brain Tangles
7. Research may unlock mystery of autisms origin in the brain
8. Scientists Spot Brains Free Will Center
9. Free will takes flight: how our brains respond to an approaching menace
10. Alcoholics With Cirrhosis Have More Brain Damage
11. Brain Lesions Predict MS Progression
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... ... June 27, 2016 , ... Quality metrics are proliferating ... many ways they remain in the eye of the beholder, according to experts who ... of The American Journal of Managed Care. For the full issue, click here ...
(Date:6/26/2016)... Orion, Clarkston, Michigan (PRWEB) , ... June 26, ... ... with respect to fertility once they have been diagnosed with endometriosis. These women ... intercourse but they also require a comprehensive approach that can help for preservation ...
(Date:6/25/2016)... ... ... First Choice Emergency Room , the largest network of independent freestanding emergency ... its new Mesquite-Samuell Farm facility. , “We are pleased to announce Dr. Ogunleye ... M. Muzzarelli, Executive Medical Director of First Choice Emergency Room. , Dr. Ogunleye ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article ... are unfamiliar with. The article goes on to state that individuals are now more ... these less common operations such as calf and cheek reduction. The Los Angeles area ...
(Date:6/24/2016)... ... June 24, 2016 , ... Global law firm Greenberg Traurig, P.A. announced ... attorneys chosen by their peers for this recognition are considered among the top 2 ... received special honors as members of this year’s Legal Elite Hall of Fame: ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016 ... Market by Type (Standard Pen Needles, Safety Pen Needles), ... (Insulin, GLP-1, Growth Hormone), Mode of Purchase (Retail, Non-Retail) ... MarketsandMarkets, This report studies the market for the forecast ... to reach USD 2.81 Billion by 2021 from USD ...
(Date:6/23/2016)... , June 23, 2016  MedSource announced ... as its e-clinical software solution of choice.  This ... best possible value to their clients by offering ... The preferred relationship establishes nowEDC as the EDC ... for MedSource,s full-service clients.  "nowEDC has long been ...
(Date:6/23/2016)... a startling report released today, National Safety Council research ... proven plan to eliminate prescription opioid overdoses. Prescription Nation ... tackling the worst drug crisis in recorded U.S. history, assigned a ... , New Mexico , Tennessee ... failing states, three – Michigan , ...
Breaking Medicine Technology: