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A genetic variation that boosts risk for Attention Deficit Hyperactivity Disorder (ADHD) paradoxically appears to predict who will grow out of the learning disability. Scientists found that brain development in ADHD-afflicted children with this variation was out of whack at age 8 but normalized by 16. ADHD symptoms in this group were also more likely to disappear with age. The study is the first to identify a genetically determined pattern of brain development linked to ADHD and indicates a real neurological basis for the disorder, which has been viewed by some as a contrivance of pharmaceutical marketers or the product of bad parenting.

 

“This is the first step in individualizing treatment for ADHD based on genetic make-up,” says Philip Shaw, a neuroscientist at the National Institute of Mental Health in Bethesda, MD, who led the study.

 

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