Navigation Links
Nerve Disorganization May Spur Form of Dyslexia

Brain scans show real differences, researchers say

TUESDAY, Dec. 4 (HealthDay News) -- Disorganized, meandering tracts of nerve fibers in the brain may cause a form of dyslexia marked by slow and choppy reading fluency, U.S. researchers report.

There are different forms of dyslexia, which affects 5 percent to 15 percent of children.

In this study, researchers at Children's Hospital Boston and Beth Israel Deaconess Medical Center used a special form of MRI called diffusion sensor imaging to study the brains of 10 people with dyslexia caused by a rare genetic disorder called periventricular nodular heterotopia (PNH), which disrupts brain structure. People with PNH have normal intelligence but have trouble reading smoothly because they lack the rapid brain processing needed for this aspect of reading.

They compared the PNH patients to 10 people with dyslexia without neurological problems and to 10 people without dyslexia who were normal readers.

As reported in the Dec. 4 issue of Neurology, the scans revealed a disorganized, wandering pattern of white matter nerve fiber connections in the brains of the PNH patients. The more disordered a patient's white matter nerve fiber connections, the less fluent or smooth their reading, the team noted.

"We looked at dyslexia caused by a particular genetic disorder, but what we found could have implications for understanding the causes of dyslexia in other populations as well," study co-leader Dr. Christopher Walsh, chief of the division of genetics at Children's Hospital Boston, said in a prepared statement.

Learning more about the link between brain structure and reading may help lead to the development of new techniques to improve reading skills in dyslexic children and adults with poor reading skills, the researchers said.

More information

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

-- Robert Preidt

SOURCE: Children's Hospital Boston and Beth Israel Deaconess Medical Center, new release, Dec. 3, 2007

Copyright©2007 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Consumer Reports Analysis: Drugs for Nerve Pain, Fibromyalgia Effective, But Not Always Best
2. Cell-surface sugar defects may trigger nerve damage in multiple sclerosis patients
3. Antibody Helps Repair MS Nerve Damage
4. Jefferson oncologists show focused radiation is effective as surgery against nerve tumor
5. BIDMC Dyslexia Research Lab celebrates 25th anniversary
Post Your Comments:
(Date:10/13/2017)... ... 13, 2017 , ... “The Journey: From the Mountains to the Mission Field”: ... souls in the Philippines. “The Journey: From the Mountains to the Mission Field” is ... Bible. She has taught all ages and currently teaches a class of ladies at ...
(Date:10/12/2017)... Orleans, LA (PRWEB) , ... October 12, 2017 , ... ... centers in the U.S., announced today its plans to open a flagship location in ... will occupy the former Rooms To Go store next to Office Depot in the ...
(Date:10/12/2017)... ... October 12, 2017 , ... Asante, a nationally ... care, have expanded their existing home health joint venture through an agreement, effective ... operating a joint venture home health company with Asante, delivering clinically integrated care, ...
(Date:10/12/2017)... ... 2017 , ... Leading pediatric oncology experts at Children’s National Health System ... Congress of the International Society of Paediatric Oncology (SIOP) Oct. 12-15. Chaired by ... and Blood Disorders at Children’s National, and Stephen P. Hunger, M.D., Chief of ...
(Date:10/12/2017)... BALTIMORE (PRWEB) , ... October 12, 2017 , ... ... average of $3,296 in property taxes a year. In some states—like New York, ... higher. , By contrast, many overseas retirement havens have extremely low property-tax rates, ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... The Rebound mobile app is poised to become ... tide of prescription drug addiction. The app empowers users to ... stepping down their dosage in a safe, controlled manner while ... the first 100,000 people to sign up will enjoy 3 ... ...
(Date:9/27/2017)... Sept. 27, 2017  DarioHealth Corp. (NASDAQ: DRIO), a leading global digital ... its MyDario product is expected to appear on The Dr. Oz Show ... Oz Show airs in your area: ... The nine-time Emmy award-winning, The Dr. Oz Show kicked off ... The segment features ...
(Date:9/22/2017)... Md. , Sept. 22, 2017  As the ... Republican Senators Bill Cassidy (R-LA) and ... Information notes that the medical device industry is in ... medical device tax, the 2.3% excise tax on medical ... But they also want covered patients, increased visits and ...
Breaking Medicine Technology: