Navigation Links
Reduced 'Fine-Tuning' of Brain May Hamper Face Recognition in Autism
Date:3/22/2013

FRIDAY, March 22 (HealthDay News) -- A malfunction in a specific group of brain cells may explain why some people with autism have difficulty recognizing faces, a small new study finds.

Researchers used functional MRI to scan the brains of 15 adults with autism. In some of the patients, neurons in the brain area that processes faces -- the fusiform face area (FFA) -- were too broadly "tuned" to distinguish between facial features of different people.

"When your brain is processing faces, you want neurons to respond selectively so that each is picking up a different aspect of individual faces. The neurons need to be finely tuned to understand what is dissimilar from one face to another," study senior investigator Maximilian Riesenhuber, an associate professor of neuroscience at Georgetown University Medical Center, said in a center news release.

"What we found in our 15 adult participants with autism is that in those with more severe behavioral deficits, the neurons are more broadly tuned, so that one face looks more like another, as compared with the fine-tuning seen in the FFA of typical adults," he explained.

"And we found evidence that reduced selectivity in FFA neurons corresponded to greater behavioral deficits in everyday face recognition in our participants," Riesenhuber added. "This makes sense. If your neurons cannot tell different faces apart, it makes it more difficult to tell who is talking to you or understand the facial expressions that are conveyed, which limits social interaction."

Riesenhuber noted that there are wide differences in the ability of people with autism to identify faces, and that some of them have no difficulty doing so.

"But for those that do have this challenge, it can have substantial ramifications -- some researchers believe deficits in face processing are at the root of social dysfunction in autism," he said.

The study was published online March 15 in the journal NeuroImage: Clinical.

More information

The U.S. National Institute of Neurological Disorders and Stroke has more about autism.

-- Robert Preidt

SOURCE: Georgetown University Medical Center, news release, March 18, 2013


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Huntingtons Disease Linked to Reduced Cancer Risk in Study
2. Decision guide reduced uncertainty over breast cancer prevention, study finds
3. Physical activity linked to reduced mortality in breast and colon cancer patients
4. High-contrast, high-resolution CT scans now possible at reduced dose
5. Long-term testosterone treatment for men results in reduced weight and waist size
6. HCOs find risks & opportunities in quest for reduced costs & improved quality
7. Health care organizations quest for reduced costs and improved quality
8. PharmaNet system dramatically reduced inappropriate prescriptions of potentially addictive drugs
9. Study shows anaesthetic-related deaths reduced dramatically
10. Health inequalities could be reduced by more effective healthcare, says new study
11. Health inequalities could be reduced by more effective health care, says new study
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Reduced 'Fine-Tuning' of Brain May Hamper Face Recognition in Autism
(Date:12/5/2016)... Petersburg, Fla. (PRWEB) , ... December 05, 2016 , ... ... concussions have on the growing brains of young athletes. Over the course of three ... the head through unique mouth guards. The mouth guards, equipped with special sensors, will ...
(Date:12/5/2016)... ... December 05, 2016 , ... Progressive ... of L-Citrulline and glutathione to enhance production of nitric oxide (NO). , NitroGenesis ... shown to produce NO twice as effectively and sustains NO blood levels twice ...
(Date:12/5/2016)... Missouri (PRWEB) , ... December 05, 2016 , ... ... ethnic, gender, and geographic lines. The goal of Castlewood Treatment Centers has always ... treatment accessible to as many people as possible. In that spirit, Castlewood ...
(Date:12/5/2016)... ... ... U.S. Apple Association (USApple) begins the holiday giving season by donating $17,800 to ... Buy an Apple, Help a Student fundraising campaign. , Winning ideas ... their families; solar technology to efficiently process compost; and iPads to enhance student learning. ...
(Date:12/5/2016)... ... December 05, 2016 , ... ... portfolio company, today announced it has acquired the assets of Frankfurt, Germany ... a subsidiary of Chiltern International and focuses on clinical trial drug packaging, ...
Breaking Medicine News(10 mins):
(Date:12/5/2016)... 5, 2016  Recently Zymo Research announced an ... known as Horvath,s Clock. Based on this technology, ... service to academic and biopharma scientific researchers to ... other than sperm. The service quantifies ... age versus chronological age following drug treatments and ...
(Date:12/5/2016)... Ill. , Dec. 5, 2016 For ... score on the 2017 Human Rights Campaign Foundation,s ... The CEI is a national benchmarking tool used to ... bisexual, and transgender (LGBT) employee equality. For ... Survey to help companies gauge their equality efforts, culture ...
(Date:12/5/2016)... WOODCLIFF LAKE, N.J. , Dec. 5, 2016 /PRNewswire/ ... on perampanel presented at the 2016 Annual Meeting of ... marketed as FYCOMPA® CIII, is indicated as an adjunctive ... with or without secondarily generalized seizures and primary generalized ... 12 years of age and older. Please see Important ...
Breaking Medicine Technology: