1 SAMRC Unit on Risk and Resilience in Mental Disorders, Department of Psychiatry and Neuroscience Institute, University of Cape Town, Cape Town, South Africa (Stein); Department of Psychology, Utrecht University, Utrecht, the Netherlands (van Honk); Departments of Neurology, Psychiatry and the Behavioral Sciences, Radiology, Pediatrics, and Engineering and the Imaging Genetics Center, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles and Marina del Rey (Thompson).