-- Robert Preidt
FRIDAY, Aug. 29, 2014 (HealthDay News) -- Researchers have
discovered that people with dyslexia have disrupted network
connections in their brains.
Dyslexia -- the most commonly diagnosed learning disorder in the
United States -- causes problems with reading and writing.
Previous research showed that brain activity is disrupted in
people with dyslexia, but most of those studies focused only on a
small number of brain regions.
This new study used functional MRI to analyze how multiple brain
regions use networks to communicate with each other, something
called functional connectivity.
The researchers scanned and compared the brains of children and
adults with and without dyslexia, and found that the two groups had
many differences in the connections between different brain
People with dyslexia had less connectivity between a number of
brain regions involved in reading, according to the study released
online Aug. 28 in the journal
"As far as we know, this is one of the first studies of dyslexia to examine differences in functional connectivity across the whole brain, shedding light on the brain networks that crucially support the complex task of reading," study author Emily Finn, a neuroscience Ph.D. student at Yale University School of Medicine, said in a journal news release.
"Compared to typical readers, dyslexics had weaker connections between areas that process visual information and areas that control attention, suggesting that individuals with dyslexia are less able to focus on printed words," she explained.
The U.S. National Institute of Neurological Disorders and Stroke
has more about
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
Copyright © EBSCO Publishing. All rights reserved.