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:2/8/2016)... ... February 08, 2016 , ... FileHold's document management software ... provides a cloud hosted environment for FileHold software that is pay per user ... party applications using the FileHold web services API. DocuSyst also advises clients on ...
(Date:2/8/2016)... ... 2016 , ... TopConsumerReviews.com recently awarded their highest five-star rating to a product ... from a cluster of melanin when exposed to sunlight. Although most moles are benign ... of embarrassment. Historically, mole removal has involved a painful, often expensive visit ...
(Date:2/8/2016)... ... February 08, 2016 , ... ... four states in the U.S. require dental technicians to be certified or obtain ... dental industry, NADL created the “What’s In Your Mouth?” campaign to inform dentists ...
(Date:2/7/2016)... ... February 07, 2016 , ... Dr. Todd ... to his medical and surgical expertise. Technically known as deoxycholic acid or previously ... as a non-surgical alternative for reduction of fat below the chin (aka the ...
(Date:2/6/2016)... ... February 06, 2016 , ... Shark Finds and Kevin Harrington, along ... new DRTV campaign with Belly Bands. , Having a dog is great—except when it ... pads and find nothing works, get Belly Bands, the easiest way to stop ...
Breaking Medicine News(10 mins):
(Date:2/8/2016)... http://www.researchandmarkets.com/research/bcrl3s/labelfree ) ... "Label-Free Detection Market by Technology, Products, Applications ... to their offering. --> http://www.researchandmarkets.com/research/bcrl3s/labelfree ... "Label-Free Detection Market by Technology, Products, ... report to their offering. --> ...
(Date:2/8/2016)... 8, 2016  Astellas Pharma Inc. President and Chief Executive ... James Robinson as president, Americas Operations, for Astellas ... and South America , effective April 1, ... the commercial organization in the United States ... Masao Yoshida , who is retiring in June 2016.  ...
(Date:2/8/2016)... 2016  LivaNova, PLC, Hersteller des VNS-Therapie ... dem Titel „Epilepsy Around the World" (Epilepsie ... Krankheit gegenüber ein größeres Bewusstsein gefördert werden ... bei Epilepsie auf dem Internationalen Epilepsietag zu ... Mithilfe der neuen Infografik sollen wichtige Statistiken ...
Breaking Medicine Technology: