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:10/13/2017)... ... 13, 2017 , ... Ellevate Network, the leading network for professional women, brought ... gender equality at their inaugural Summit in New York City in June. The event ... audience of over 3 million. To watch the Mobilize Women video, click here ...
(Date:10/13/2017)... ... October 13, 2017 , ... Coveros, a leader in ... awarded a contract by the Center for Medicare and Medicaid Services (CMS). The ... enterprise use of Agile methodologies in a consistent and high value manner across ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... treating sleep apnea using cutting-edge Oventus O2Vent technology. As many as ... disorder characterized by frequent cessation in breathing. Oral appliances can offer significant relief ...
(Date:10/12/2017)... ... October 12, 2017 , ... The American College of Medical Informatics (ACMI) will ... during the Opening Session of AMIA’s Annual Symposium in Washington, D.C. AMIA’s Annual ... F. Collen, a pioneer in the field of medical informatics, this prestigious award is ...
(Date:10/12/2017)... ... October 12, 2017 , ... HMP , a leader in healthcare ... Folio Magazine Eddie Digital Award for ‘Best B-to-B Healthcare Website.’ Winners were announced during ... , The annual award competition recognizes editorial and design excellence across a range of ...
Breaking Medicine News(10 mins):
(Date:10/5/2017)... Oct. 5, 2017  In response to the ... and Maxillofacial Surgeons (AAOMS) released prescribing recommendations that ... be used as a first-line therapy to manage ... Recognizing the value and ... Paper "Opioid Prescribing: Acute and Postoperative Pain Management" ...
(Date:10/2/2017)... 2, 2017  Eli Lilly and Company (NYSE: ... the third quarter of 2017 on Tuesday, October 24, ... that day with the investment community and media to ... conference call will begin at 9 a.m. Eastern time. ... live webcast of the conference call through a link ...
(Date:9/28/2017)... , Sept. 28, 2017 Cohen Veterans Bioscience ... the use of wearable and home sensors for real-time ... Early Signal Foundation, a nonprofit organization focused on disruptive ... provide an affordable analytical system to record and integrate ... ...
Breaking Medicine Technology: