Evaluating Dopamine Reward Pathway in ADHD

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Abstract
Attention-deficit/hyperactivity disorder (ADHD) is characterized by symptoms of inattention, hyperactivity, or impulsivity that produce impairment across cognitive, behavioral, and interpersonal domains.1 Although for many years it was believed to be a disorder of childhood and adolescence, it is now recognized to also occur in adulthood. It is estimated that ADHD affects 3% to 5% of the US adult population,2 which makes it one of the most prevalent of all psychiatric disorders.