- Man shot by police ID'd; witness shares his side of story (2/17/17)31
- Settlement reached in accidental shooting case at Kelly High (2/15/17)10
- Jackson board votes to demolish high school building if bond issue passes (2/15/17)24
- MSHP: McLendon shot in side; autopsy refutes witness account (2/19/17)23
- Cape officer shoots man inside a home (2/16/17)7
- Panda Express restaurant coming to Cape's Siemers Drive (2/14/17)2
- Business notebook: Owners ready to roll out the Barrel 131 (2/20/17)3
- Former Cape cop indicted on possessing child porn (2/17/17)
- Man dies after being shot by officer; said to have come at cop with knife (2/16/17)29
- Ray's of Kelso to close, then reopen under new ownership (2/16/17)6
Scans show more evidence for brain glitch in dyslexia
Scientists have found new evidence linking the reading problem called dyslexia to glitches in a particular region of the brain.
The evidence comes from brain scans of 70 dyslexic and 74 non-impaired children, ages 7 to 18. It follows a 1998 brain scan study that reported the link in adults.
The new work, by including children as young as 7, shows the brain problem is present at the beginning of reading ability, said researcher Sally Shaywitz of Yale University.
She and colleagues reported the work in the July 15 issue of the journal Biological Psychiatry. They used functional magnetic resonance imaging, which reveals how hard various parts of the brain are working during particular tasks. The researchers cautioned the technology can't be used to diagnose dyslexia.
Their results showed that the better a child performed in tests of reading ability, the greater activation he or she showed in a particular brain area when trying to sound out words. That emphasizes that this region is key to skilled reading, as prior studies had suggested, Shaywitz said.
Children with dyslexia showed significantly less activation than normal in this area, a finding that fits with prior work, the researchers said.
The area, just behind the left ear, is called the left occipito-temporal region. Scientists are now trying to define just what circuitry is involved, as well as what goes wrong in dyslexia, Shaywitz said.