Magnetic Resonance Imaging Measurement of the Caudate Nucleus in Adolescents With Attention-Deficit Hyperactivity Disorder and Its Relationship With Neuropsychological and Behavioral Measures

These findings provide further evidence of the involvement of the caudate nucleus in the neuropsychological deficits and behavioral problems found in ADHD. The larger caudate nucleus found in the ADHD group could be related to a failure of the maturational processes that normally result in volume reduction.