Professor Jennie Ponsford has spent the last 40 years working the field of traumatic brain injury. She currently co-ordinates one of the world’s largest longitudinal outcome studies, which is tracking more than 3000 patients over 30 years following a traumatic brain injury. The Longitudinal Head Injury Outcome Project, has been running since 1995.[4] The goal of the study is to document the long term problems of people with TBI, identify factors that influence outcome, particularly the influence of age, genetic, cultural and behavioural factors.