The Dunedin Brain Imaging Study is a collaboration between Duke University Professors Terrie Moffitt, Avshalom Caspi, and Ahmad Hariri, and the Dunedin Multidisciplinary Health and Development Research Unit led by Professor Richie Poulton at the University of Otago in Dunedin, New Zealand. The parent Dunedin Study was launched with the enrollment of 1037 individuals born between April 1972 and March 1973 in Dunedin, New Zealand. The individuals enrolled represented the full range of socioeconomic status in the general population of New Zealand's South Island. These individuals have been followed longitudinally with a variety of rigorous health and behavioral assessments conducted at birth and ages 3, 5, 7, 9, 11, 13, 15, 18, 21, 26, 32, 38, and, most recently, 45, when neuroimaging was carried out in 875 individuals. The Study has been primarily supported by funding from the US National Institutes of Health and the UK Medical Research Council.