I am a Child and Adolescent Psychiatrist based at Cambridge University pursuing research into the connections between human development and psychopathology. My studies are centred on adolescents in the community as well as current patients. Our research programme uses experimental and neuroimaging approaches embedded in longitudinal designs to measure the effects of genes and the social environment, on cognition and brain structures. We use these methods in epidemiological cohort studies of adolescent development and randomised controlled trials of treatment for depression and conduct disorders.