Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Fear of getting fat seen in healthy women’s brain scans

14.04.2010
A group of women in a new study seemed unlikely to have body image issues – at least their responses on a tried-and-true psychological screening presented no red flags.

That assessment changed when Brigham Young University researchers used MRI technology to observe what happened in the brain as these women viewed images of complete strangers.

If the stranger happened to be overweight and female, it surprisingly activated in women’s brains an area that processes identity and self-reflection. Men did not show signs of any self-reflection in similar situations.

“These women have no history of eating disorders and project an attitude that they don’t care about body image,” said Mark Allen, a BYU neuroscientist. “Yet under the surface is an anxiety about getting fat and the centrality of body image to self.”

Allen makes his report with grad student Tyler Owens and BYU psychology professor Diane Spangler in the May issue of the psychological journal Personality and Individual Differences.

Spangler and Allen collaborate on a long-term project to improve treatment of eating disorders by tracking progress with brain imaging. When anorexic and bulimic women view an overweight stranger, the brain’s self-reflection center – known as the medial prefrontal cortex – lights up in ways that suggest extreme unhappiness and in some cases, self-loathing.

The motivation for this new study was to establish a point of reference among a control group of women who scored in the healthy range on eating disorder diagnostic tests. Surprisingly, even this control group exhibited what Allen calls “sub-clinical” issues with body image.

Seeing that, Allen and Owens ran the experiments with a group of men for comparison.

“Although these women’s brain activity doesn’t look like full-blown eating disorders, they are much closer to it than men are,” Allen said.

Spangler says women are bombarded with messages that perpetuate the thin ideal, and the barrage changes how they view themselves.

“Many women learn that bodily appearance and thinness constitute what is important about them, and their brain responding reflects that,” Spangler said. “I think it is an unfortunate and false idea to learn about oneself and does put one at greater risk for eating and mood disorders.”

“It’s like the plant in my office,” she continued.“It has the potential to grow in any direction, but actually only grows in the direction of the window – the direction that receives the most reinforcement.”

Joe Hadfield | EurekAlert!
Further information:
http://www.byu.edu

More articles from Health and Medicine:

nachricht Study tracks inner workings of the brain with new biosensor
16.08.2018 | Rheinische Friedrich-Wilhelms-Universität Bonn

nachricht Foods of the future
15.08.2018 | Georg-August-Universität Göttingen

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: It’s All in the Mix: Jülich Researchers are Developing Fast-Charging Solid-State Batteries

There are currently great hopes for solid-state batteries. They contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Jülich scientists have now introduced a new concept that allows currents up to ten times greater during charging and discharging than previously described in the literature. The improvement was achieved by a “clever” choice of materials with a focus on consistently good compatibility. All components were made from phosphate compounds, which are well matched both chemically and mechanically.

The low current is considered one of the biggest hurdles in the development of solid-state batteries. It is the reason why the batteries take a relatively long...

Im Focus: Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

LaserForum 2018 deals with 3D production of components

17.08.2018 | Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

 
Latest News

A paper battery powered by bacteria

21.08.2018 | Power and Electrical Engineering

Protein interaction helps Yersinia cause disease

21.08.2018 | Life Sciences

Biosensor allows real-time oxygen monitoring for 'organs-on-a-chip'

21.08.2018 | Medical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>