Scott A. Huettel is the Jerry G. and Patricia Crawford Hubbard Professor and Chair of the Department of Psychology and Neuroscience at Duke University, with secondary appointments in the Departments of Psychiatry and Neurobiology. His research uses a combination of behavioral, physiological, and neuroscience techniques to discover the neural mechanisms that support cognition, with a focus on decision-making. Much of his research--which includes collaborations with neuroscientists, psychologists, behavioral economists, and business and medical faculty--falls within the emerging interdiscipline of neuroeconomics. He is also a co-editor of Principles of Cognitive Neuroscience (2nd edition, 2013). Allen W. Song is Director of the Brain Imaging and Analysis Center and Professor in the Departments of Radiology, Psychiatry, Neurobiology, and Biomedical Engineering at Duke University. His Ph.D., in Biophysics, was earned from the Medical College of Wisconsin. His research involves the development and optimization of new methods to improve the spatial and temporal resolution of MRI, such as fMRI and DTI. Additional focus is centered on the development of complementary contrast mechanisms for fMRI, including diffusion and perfusion imaging and direct imaging of neuronal activity. Gregory McCarthy is Professor of Psychology at Yale University. He received his Ph.D. in Biological Psychology from the University of Illinois at Urbana-Champaign. Dr. McCarthy studies the functional anatomy of the human brain, an interest he has pursued using behavioral, electrophysiological, and neuroimaging methods. One goal of his research is to elucidate the brain mechanisms of high-level visual function, particularly with regard to perception of social stimuli. Another line of research investigates executive functions, particularly in the frontal lobe, and how they are altered by distracting or emotional stimuli.