I am interested in how children develop individual differences in adjustment, including behavior problems as well as competencies. I am particularly interested in the development of externalizing behavior problems and underlying self-regulation difficulties. My primary research interests include how children develop self-regulation as a function of bio-psycho-social processes including brain functioning, genetics, parenting, temperament, language, and sleep, and how self-regulation in turn influences adjustment and school readiness. A special emphasis of my work examines the neural development underlying the development of self-regulation, school readiness, and externalizing problems, with measures of electroencephalography (EEG) and event-related potentials (ERPs).