Navigation Links
Differences in language circuits in the brain linked to dyslexia
Date:5/10/2010

Milan, Italy, 10 May 2010 Children with dyslexia often struggle with reading, writing, and spelling, despite getting an appropriate education and demonstrating intellectual ability in other areas. New neurological research has found that these children's difficulties with written language may be linked to structural differences within an important information highway in the brain known to play a role in oral language. The findings are published in the June 2010 issue of Elsevier's Cortex (http://www.elsevier.com/locate/cortex).

Vanderbilt University researchers Sheryl Rimrodt and Laurie Cutting and colleagues at Johns Hopkins University and Kennedy Krieger Institute used an emerging MRI technique, called diffusion tensor imaging (DTI), to discover evidence linking dyslexia to structural differences in an important bundle of white matter in the left-hemisphere language network. White matter is made up of fibers that can be thought of as the wiring that allows communication between brain cells; the left-hemisphere language network is made up of bundles of these fibres and contains branches that extend from the back of the brain (including vision cells) to the front parts that are responsible for articulation and speech. "When you are reading, you are essentially saying things out loud in your head", said Cutting. "If you have decreased integrity of white matter in this area, the front and back part of your brain are not talking to one another. This would affect reading, because you need both to act as a cohesive unit."

Rimrodt and Cutting used the DTI technique to map the course of an important white matter bundle in this network and discovered that it ran through a frontal brain region known to be less well organised in the dyslexic brain. They also found that fibers in that frontal part of the tract were oriented differently in dyslexia. Rimrodt said, "To find a convergence of MRI evidence that goes beyond identifying a region of the brain that differs in dyslexia to linking that to an identifiable structure and beginning to explore physical characteristics of the region is very exciting. It brings us a little bit closer to understanding how dyslexia happens."


'/>"/>

Contact: Valeria Brancolini
v.brancolini@elsevier.com
39-028-818-4260
Elsevier
Source:Eurekalert

Related medicine news :

1. Gender Differences Show in Risk of Narcotic Abuse
2. Bad Habits Explain Class Differences in Health: Study
3. Transcription factors may dictate differences between individuals
4. Poll Reveals Sleep Differences Among Ethnic Groups
5. Poll reveals sleep differences among ethnic groups
6. American Stroke Association Late-Breaking Science Report: Surgery, Stenting to Open Blocked Neck Arteries Similar in Safety, Efficacy, But Show Differences in Stroke, Heart Attack and Death Rates at Certain Ages
7. Few differences in outcomes between open and laparoscopic prostate surgery
8. Survey finds significant racial differences in lung cancer beliefs
9. Medicare data reveals differences in orthopedic surgical outcomes
10. His or hers jealousy? Study offers new explanation for sex differences in jealousy
11. Racial differences in medication use
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... ... June 27, 2016 , ... ... authorized OSHA Training Institute Education Center headquartered in Northern California, has issued an ... extreme heat at their worksites. Employers with workers exposed to high temperatures ...
(Date:6/27/2016)... , ... June 27, 2016 , ... "FCPX editors can ... inside of Final Cut Pro X," said Christina Austin - CEO of Pixel Film ... Final Cut Pro X users can now reveal the media of their ...
(Date:6/27/2016)... ... ... TherapySites, the leading website and online marketing ... Association. This new relationship allows TherapySites to continue to extend their online ... and promotional offers. , "TCA is extremely excited about this new partnership, as ...
(Date:6/27/2016)... ... June 27, 2016 , ... ... strategic partnership with Connance, a healthcare industry leader providing predictive analytics to ... technology combine to provide health systems, hospitals and ambulatory surgical centers with ...
(Date:6/27/2016)... Brooklyn, NY (PRWEB) , ... June 27, 2016 ... ... is using cutting edge technology to revolutionize the emergency ambulance transport experience for ... Many are aware of how Uber has disrupted the taxi industry through the ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... , June 26, 2016 One of ... has announced the formation of a new biotechnology company, Noxopharm Limited ... $6m in an IPO and to list on the ASX. ... candidate, NOX66, ready to enter a Phase 1 clinical study later ... designed to address one of the biggest problems facing cancer patients ...
(Date:6/26/2016)... 2016 Jazz Pharmaceuticals plc (Nasdaq: ... Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended ("HSR"), ... Inc. ("Celator"; Nasdaq: CPXX ) expired effective ... As previously announced on May 31, 2016, ... agreement under which Jazz Pharmaceuticals has commenced a tender ...
(Date:6/26/2016)...  VMS Rehab Systems, Inc. ( www.vmsrehabsystemsinc.com ) reported ... required to build a strong and stable market for ... on the OTC Markets-pink current trading platform. ... are seeing an anomaly in market trading activities that ... the Company, but shareholders and market players as well. ...
Breaking Medicine Technology: