The Massachusetts General Hospital (MGH) Longitudinal Studies of Attention Deficit Hyperactivity Disorder (ADHD) evaluated and followed a large sample of both boys and girls with ADHD and controls without ADHD, along with their families, ascertained from psychiatric and pediatric sources. These studies documented that ADHD in both sexes is associated with high levels of persistence onto adulthood; high levels of familiality with ADHD and other psychiatric disorders; a wide range of comorbid psychiatric and cognitive disorders including mood, anxiety, and substance use disorders; learning disabilities with reading and math; executive function deficits; emotional dysregulation and autistic traits; as well as educational, social, and occupational dysfunctions. The MGH studies also suggested that stimulant treatment significantly decreased the risk of developing comorbid psychiatric disorders, substance use disorders, and impaired functional outcomes. The studies also documented the neural basis of the persistence of ADHD using resting-state functional magnetic resonance imaging (fMRI).
Response inhibition and reward anticipation in medication-naïve adults with attention-deficit/hyperactivity disorder: A within-subject case-control neuroimaging study
