We interact with others from the moment we are born. Our research group investigates how social interactions shape human motivation, learning and behavior. Current projects focus on the neural implementation of social motivational states (e.g., empathy, collectivism, reciprocity, egoism), investigate their interactions, and test their impact on actual social behavior. Ultimately, we aim at developing tailored social interactions that can be used as a tool for the diagnosis and therapy of psychological disorders, e.g., from the anxiety disorder spectrum. We use neuroscience methods (fMRI) combined with computational modeling (Dynamic Causal Modeling, learning models), and paradigms from social psychology and behavioral economics.