Navigation Links
Brain EEG Test Might Help Spot Autism: Study
Date:6/26/2012

TUESDAY, June 26 (HealthDay News) -- Electroencephalogram (EEG), a test that shows the electrical activity of the brain, might be used to spot autism in children, a new study suggests.

The study, conducted by researchers at Harvard University Medical School, looked at the synchronization of brain activity across different brain regions, as measured by EEG.

"These scientists used sensors to record electrical brain activity across many different regions on the scalp," explained Geraldine Dawson, chief science officer at the advocacy group Autism Speaks. "They then looked at the extent to which brain activity from one region was synchronized with brain activity from another region," a phenomenon known as "EEG coherence," said Dawson, who was not involved in the research.

"Synchronization between different brain regions indicates that those regions are functioning in a coordinated, rather than independent, fashion -- in other words, they are functionally connected and communicating with each other," she said.

In the new study, Dr. Frank Duffy and Dr. Heidelise Als compared EEG measurements of nearly 1,000 children with and without autism. They found that the two groups had widespread differences in terms of brain connectivity.

EEG revealed that the children with autism had a reduced short range connectivity, indicating poor function of local brain networks. This was especially true in the left hemisphere regions of the brain responsible for language.

The children with autism also had increased connectivity between brain regions that were farther apart, which might be a mechanism developed to compensate for reduced short range connectivity, the researchers said.

The research was conducted at Boston Children's Hospital and was published online June 25 in the journal BMC Medicine.

The use of EEG-based testing may help diagnose autism in children and may improve early detection in infants, leading to more effective treatments and coping strategies, the researchers said.

"What was unique about this study is the very large number of children studied," Dawson noted. "Consistent with many previous studies using EEG and functional MRI with both children and adults with autism, these investigators found that, overall, children with autism show reduced coordination (coherence) across brain regions."

She said the findings are important because, "they help us understand why individuals with autism have difficulty with complex behaviors, such as social interaction and language. As children's brains develop, the different brain regions become increasingly connected, allowing for the acquisition of complex behaviors that require coordination across different brain regions."

Language, for example, requires coordination across the auditory, visual, and motor brain regions, as well as the participation of the prefrontal cortex, she said.

"This reduced functional connectivity in the brain helps us understand impairments associated with autism," she added. "The hope is that early behavioral intervention can help mitigate these functional impairments, helping to form the connections that natural develop in typical children."

Another expert agreed.

"Although autism is still principally a clinical diagnosis, this study ... may allow for a new approach to classifying children with autism and may even assist in the early identification of affected children at a younger age," said Dr. Andrew Adesman, chief of developmental and behavioral pediatrics at the Steven & Alexandra Cohen Children's Medical Center of New York in New Hyde Park, NY.

The number of children diagnosed with autism in the United States has recently increased to one in 88.

More information

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

-- Robert Preidt

SOURCES: Geraldine Dawson, Ph.D., chief science officer, Autism Speaks; Andrew Adesman, MD, chief of developmental & behavioral pediatrics, Steven & Alexandra Cohen Children's Medical Center of New York, New Hyde Park, NY; BMC Medicine, news release, June 25, 2012


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

Related medicine news :

1. First-ever Allen Brain Atlas Hackathon unleashes big data API to push neuroscience forward
2. Brain structure helps guide behavior by anticipating changing demands
3. Tracking Love, Lust in the Brain
4. Aging Brain Care model receives $7.8 million in CMS innovation funding
5. Deep Brain Stimulation May Offer Longer-Term Relief for Parkinsons
6. Gene sequencing project identifies potential drug targets in common childhood brain tumor
7. UW research shows new prognosis tool for deadly brain cancer
8. For Combat Vets, Brain Injury Symptoms Can Last Years
9. Traumatic brain injury the focus of American Headache Society scientific conference
10. Tai Chi increases brain size, benefits cognition in randomized controlled trial of Chinese elderly
11. Device implanted in brain has therapeutic potential for Huntingtons disease
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Brain EEG Test Might Help Spot Autism: Study 
(Date:4/30/2016)... Cambridge, MA (PRWEB) , ... April 30, 2016 ... ... non-profit organization, today announced RANKED Health , a program to critically evaluate ... A major goal of the program is to provide independent, unbiased and accurate ...
(Date:4/30/2016)... Indianapolis, Indiana (PRWEB) , ... April 30, 2016 , ... ... USA Wrestling as they go for gold in Rio. Under the care of ... including two golds! , In an unprecedented showing, Maximized Living is sending the largest ...
(Date:4/29/2016)... ... 29, 2016 , ... Memorial Healthcare System Graduate Medical ... (ACGME) that it has received accreditation for its residency program on Physical Medicine ... that Memorial is currently pursuing, including Pediatrics and Internal Medicine. This accreditation allows ...
(Date:4/29/2016)... CA (PRWEB) , ... April 29, 2016 , ... ... advocating optimistic healthcare awareness and author of best seller "LOVE, MEDICINE and MIRACLES") ... Radio Monday, May 2, 2016 and podcasted thereafter . Dr. Bernie Siegel, ...
(Date:4/29/2016)... ... April 29, 2016 , ... Spine Team Texas, a comprehensive ... to announce one of their physicians has been invited to be a featured speaker ... Family Practice Review conference on April 30, 2016. , Dr. R. Scott McPherson, ...
Breaking Medicine News(10 mins):
(Date:4/28/2016)... 2016 TapImmune,Inc. (TPIV), a ... and gene-based immunotherapeutics and vaccines for the treatment of cancer ... the 3rd Annual Growth Capital Expo to be ... at Caesars Palace in Las Vegas, Nevada.  The Company ... 4 th by Dr. John N. Bonfiglio ...
(Date:4/27/2016)... April 27, 2016   ... Growth in Recurring Consumable Sales  Clinical sales ... Kea Technologies (Euronext: MKEA, OTCQX: MKEAY) inventor of Cellvizio®, ... sales for the first quarter ended March 31, 2016 ... execution of its commercial strategy. First Quarter ...
(Date:4/27/2016)... 27, 2016  Bayer Animal Health today announced ... the University of Florida College of Veterinary Medicine, ... in Communication Award (BECA). Brittany was selected from ... a total of $70,000 in scholarship funds through ... Bayer has provided a total of $232,500 in ...
Breaking Medicine Technology: