Brain Scan Spots Differences in Tots With ADHD Symptoms
Preschool children with symptoms of attention-deficit/hyperactivity disorder (ADHD) have a smaller-than-normal structure in the brain that plays an important role in cognitive and motor control, new research shows.
The finding may help efforts to develop ways to treat the common behavioral disorder in the early stages, according to the researchers at the Kennedy Krieger Institute in Baltimore.
In the study, high-resolution MRI was used to examine the brains of 13 preschoolers with ADHD symptoms (including inattentiveness and impulsivity) and 13 without ADHD symptoms. The scans showed that children with ADHD symptoms had a significantly smaller caudate nucleus, a small structure in the subcortical region of the brain.
In addition, the smaller the child's caudate nucleus, the greater the level of ADHD symptoms reported by parents, the investigators found.