My main research interest is studying the epidemiology of psychiatric disorders, and especially the overlap between psychotic disorders and complex-PTSD. I am particularly interested in studying:

• Risk factors influencing the development of psychotic experiences during adolescence and their transition to clinical disorder over time

• The relationship between cannabis use and risk of developing mental health disorders

• The role of traumatic events on the aetiology of psychosis

• The genetic epidemiology of psychosis, including the study of how co-exposure to genetic and environmental risk factors impact upon psychosis risk

Most of my work has been based upon data from ALSPAC, a birth cohort study based here in Bristol, and on record-linkage data from Sweden.