Sound-processing difference in dyslexics

Nov. 1, 2007 at 2:24 PM

BOSTON, Nov. 1 (UPI) -- A U.S. researcher using brain imaging found computer exercises can correct sound processing problems in children with dyslexia.

The study, published in Restorative Neurology and Neuroscience, found fast-changing sounds don't trigger the brains of children with developmental dyslexia to show a high intensity activity seen in the brains of typical children and so may lead to confused syllable reading.

"Children with developmental dyslexia may be living in a world with in-between sounds," lead study author Nadine Gaab, of Children's Hospital Boston. "It could be that whenever I tell a dyslexic child 'ga,' they hear a mix of 'ga,' 'ka,' 'ba,' and 'wa.'"

Gaab watched -- using brain functional magnetic resonance imaging -- as children listened to the sounds through headphones.

In typical readers, 11 brain areas became more active when the children listened to fast-changing, compared to slow-changing, sounds. In dyslexic children, the fast-changing sounds are processed as it they were slow-changing sounds. But the brains of the children with dyslexia changed after completing exercises in a computer program known as Fast ForWord Language. The exercises involved no reading -- only listening to sounds.

Related UPI Stories
Latest Headlines
Trending Stories
Females with childhood ADHD at double the risk for obesity
Medicaid-paid births up in Texas since defunding Planned Parenthood
New ethics standards for DNA replacement therapies
New screening method detects all cystic fibrosis mutations
Esophageal cooling device helps doctors control body temperature