Antje Horsch leads the Lausanne Perinatal Research Group with a focus on stress and trauma in the perinatal period and parental and infant (mental) health aimed at: (1) Understanding the interplay between parental mental health and the development of the infant (intergenerational transmission of stress- and trauma-related consequences) and (2) Developing evidence-based (early) interventions to help prevent or combat perinatal mental health problems and their negative impact on the infant.