Dr. Franzen’s research program strives to understand how sleep is so important for emotional functioning and mental health, with a particular focus on adolescents. His studies have employed experimental sleep restriction studies to examine causal impacts of sleep loss on emotional processes and neural systems underlying positive and negative emotion using fMRI. He is also conducting a longitudinal study in adolescents to see how changing sleep duration and neural systems jointly predict increases in depression and suicidal thinking. In collaboration with Dr. Goldstein, he also examines the prospective association between sleep health and suicidality in ultra-high risk adolescents and college students.