“…Early temperament traits, theorized to reflect basic neurobehavioral propensities (e.g., Buss & Plomin, 1975;Rothbart, 1989), are increasingly recognized as significant factors for understanding the developmental trajectories of childhood psychopathology (for discussion, see Perkins et al, 2020). The neurobehavioral trait constructs of the triarchic model (Patrick et al, 2009Patrick, 2022) have shown promise for elucidating both adaptive and maladaptive trajectories involving externalizing forms of psychopathology, including substance use problems, antisocial behavior, and ADHD (Bertoldi et al, 2022;Bertoldi et al, 2023;Palumbo et al, 2021;Patrick, 2022;Perkins et al, 2022). The triarchic model traits are boldness, reflecting social dominance, emotional resiliency, and venturesomeness; meanness, entailing aggressive resource seeking without regard for others; and disinhibition, involving deficient restraint and general proneness to impulse control problems (Patrick et al, 2009).…”