Shared and Distinct Neurobiological Bases of Bipolar Disorder and Attention-Deficit/Hyperactivity Disorder in Children and Adolescents: A Comparative Meta-analysis of Structural Abnormalities.

It is suggested that PBD and ADHD are characterized by both common and distinct patterns of GMV alterations, while the disorder-differentiating substrates might contribute to the relative differences in cognitive and affective features that define the two disorders.