Navigation Links
Nerve Disorganization May Spur Form of Dyslexia
Date:12/4/2007

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:
*Name:
*Comment:
*Email:
(Date:4/28/2017)... ... 2017 , ... Accreditation Commission for Health Care (ACHC) is ... (HCAOA). This agreement allows HCAOA members to receive special pricing on ACHC’s Home ... University (AU) educational resources that help prepare HCAOA members for ACHC Accreditation. , ...
(Date:4/28/2017)... ... ... Horizon Blue Cross Blue Shield of New Jersey (BCBSNJ) announced today that ... as “stable.” At the same time, the ratings agency cautioned that the company’s rating ... “capital adequacy” thresholds required for its strong rating. , “Horizon is committed to being ...
(Date:4/28/2017)... ... April 28, 2017 , ... ... tubes . These lamps offer an instant energy-saving solution for F32T8 fluorescent lamps ... fixtures or disconnect ballasts. These 50,000 hour rated lamps utilize the existing electronic ...
(Date:4/28/2017)... ... ... The Texas Cord Blood Bank (TCBB), a program of nonprofit biomedical organization GenCure, ... at Renaissance in Edinburg for their outstanding efforts in collecting umbilical cord blood donations ... , “Women’s Hospital at Renaissance has been a collection partner for the TCBB since ...
(Date:4/28/2017)... Ca (PRWEB) , ... April 28, 2017 , ... Bill ... management industry in the coastal communities. After Tina Howe joined the team, the Bill ... happy employees, honest services at affordable rates, and giving back to the San Diego ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... , April 19, 2017  IRIDEX Corporation (Nasdaq: ... financial results for the first quarter 2017 after the ... Company,s management team will host a corresponding conference call ... Investors interested in listening to the conference ... domestic callers or (703) 326-3030 for international callers, using ...
(Date:4/19/2017)... April 19, 2017 Global Prostate Cancer ... on the prostate cancer therapeutics market analyzes the ... Increasing prevalence of prostate cancer, launch of promising ... development of new drugs & therapeutic biological products, ... due to lesser side effects are some of ...
(Date:4/19/2017)... -- The Global Effective Microorganisms (EM) Market by ... covered and analysed the potential of Global Effective Microorganisms (EM) ... and growth factors. The report identifies and analyses the emerging ... global market. ... Tables and Figures, 6 Major Company Profiles, spread across 124 ...
Breaking Medicine Technology: