Paula presents her research ideas and findings on how world migration flows, beginning 500 years ago, which formed the populations of today's countries, have contributed to the rise of different cultures of emotion. She also provides insight into how scientists use big data, meta-analysis, and experiments to test ideas about today's cultures of emotion. Paula Niedenthal received her Ph.D. from the University of Michigan and was on the faculty of the departments of Psychology at Johns Hopkins University and Indiana University. She was a member of the National Centre for Scientific Research in France for more than a decade and is now the Howard Leventhal WARF Professor of Psychology at the University of Wisconsin at Madison. Her areas of research include emotion-cognition interaction, representational models of emotion, and the processing of facial expression. Dr. Niedenthal is president-elect of The Society for Affective Science. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx