Part I Overview of Mass Psychogenic Illness: Hysteria Revisited?; Chapter 1 Analyzing a Case of Mass Psychogenic Illness, Alan C. Kerckhoff; Chapter 2 Outbreaks of Mass Hysteria at Workplaces in Singapore: Some Patterns and Modes of Presentation, W. H. Phoon; Chapter 3 A Review of Mass Psychogenic Illness in Work Settings, Michael J. Colligan, Lawrence R. Murphy; Part II Methodological and Problematic Issues in MPI Research; Chapter 4 Complexities, Cautions and Concepts in Research on Mass Psychogenic Illness, Joseph E. McGrath; Chapter 5 Mass Psychogenic Illness: Individual and Aggregate Data, Neal Schmitt, Michael Fitzgerald; Chapter 6 Evidence and Inference in Research on Mass Psychogenic Illness, Robert F. Boruch; Chapter 7 Yes Virginia, There Really is a Mass Psychogenic Illness, Jerome E. Singer; Part III Theoretical Approaches to Mass Psychogenic Illness; Chapter 8 Social and Perceptual Factors Affecting Symptom Reporting and Mass Psychogenic Illness, James W. Pennebaker; Chapter 9 Mass Psychogenic Illness: The Case for Social Comparison, Jerome E. Singer, Carlene S. Baum, Andrew Baum, Brenda D. Thew; Chapter 10 Theories of Contagion As They Relate to Mass Psychogenic Illness, Jonathan L. Freedman; Chapter 11 Illness as an Emergent Norm or Doing What Comes Naturally, Sidney M. Stahl; Chapter 12 A Social Psychological View of Mass Psychogenic Illness, Alan C. Kerckhoff; Chapter 13 Perspectives on Epidemic Hysteria, Francois Sirois; Chapter 14 Stress and Coping Theory Applied to the Investigation of Mass Industrial Psychogenic Illness, Susan Folkman, Richard S. Lazarus;