Dr. Christian Waugh is currently an Associate Professor of Psychology at Wake Forest University. He received his PhD in Social Psychology and Cognitive Neuroscience from the University of Michigan where he worked on the role of positive emotions in social cognition and resilience. After receiving his PhD, he did a postdoctoral fellowship at Stanford University where he investigated the neurobiology of stress and the temporal dynamics of emotions in at-risk populations. Currently, Dr. Waugh investigates the contextual utility of positive emotions during stress and the temporal dynamics of emotions. He has expertise in survey, experimental, peripheral psychophysiological, and neuroimaging methods. He has published several articles in prominent journals in psychology and neuroscience and has received several grants. He has also received faculty fellowship awards for being an outstanding teacher-scholar. He has given invited presentations all over the world and his work has been featured in both print and on television.Dr. Peter Kuppens Is Professor of Psychology at KU Leuven-University of Leuven in Belgium. He obtained his PhD in Psychology from KU Leuven in 2004 and has been a visiting Research Fellow at the University of Melbourne, the University of New South Wales, and the University of Zürich. His early research concerned the appraisal basis of emotions, focusing on understanding the person- and context-specific nature of emotional experience. This work led him to start studying emotions as inherently time-dynamic phenomena, with an aim to identify the major patterns of affect dynamics, their underlying processes, and their downstream consequences for psychological well-being and psychopathology. In his research, he makes use of insights from affective, clinical, and personality science, relies on both lab-based and ambulatory methods of data collection, and on the application of mathematical modeling tools to make sense of complex time-series data. He is a fellow of the Association for Psychological Science and the Society for Personality and Social Psychology.