Christopher J. Patrick, PhD, is Professor of Psychology at Florida State University. His research interests include psychopathy, antisocial behavior, substance abuse, personality, fear and fearlessness, psychophysiology, and affective and cognitive neuroscience, and he is author of more than 270 articles and chapters on these topics. Dr. Patrick is past president of the Society for the Scientific Study of Psychopathy (SSSP) and the Society for Psychophysiological Research (SPR), a recipient of Early Career awards from SPR and the American Psychological Association (APA), and a recipient of SSSP’s Lifetime Career Contribution award. He is also a Fellow of APA and of the Association for Psychological Science. Dr. Patrick served as a workgroup member for the Research Diagnostic Criteria initiative of the National Institute of Mental Health and as a scientific advisor to the DSM-5 Personality Disorders Workgroup. He is currently a member of the American Psychiatric Association’s Review Committee for Externalizing Disorders and Personality Disorders, which evaluates proposed changes to DSM-5.