Her research interests include (1) the effects of emotional evidence and emotion regulation processes on jurors’ understanding of the evidence and on their verdict decisions; (2) the effects of jury racial composition and jurors’ gender on the deliberation process, cognitive performance, and verdict outcomes; (3) self-regulatory depletion, heuristic processing, and resistance to persuasion during group deliberations; (4) the effects of moral attitudes on verdicts in morally ambiguous cases. Dr. Peter-Hagene’s work has been published in empirical journals and has been funded by the National Science Foundation, the American Psychology-Law Society, and the Society for the Psychological Study of Social Issues.