Joan L. Luby, MD, is an infant/preschool psychiatrist and Associate Professor of Child Psychiatry at the Washington University School of Medicine in St. Louis, where she is the founder and director of the Early Emotional Development Program. This clinical and research program focusing on mood disorders in preschool children was the first of its kind nationally. Dr. Luby has been awarded grants from the National Institute of Mental Heath and the National Alliance for Schizophrenia and Depression, which have supported her research on the phenomenology of early-onset mood disorders. She currently chairs the Infancy Committee of the American Academy of Child and Adolescent Psychiatry and serves… on several scientific advisory groups focused on the development of age-appropriate diagnostic criteria for preschool disorders.