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Rhona Flin, BSc, PhD, FRSE, FBPsS, holds the chair of Applied Psychology and is the director of the Industrial Psychology Research Centre at the University of Aberdeen in Scotland. She was involved in the NOTECHS project to develop a non-technical skills rating tool for pilots, and supervised the ANTS, NOTSS, SPLINTS and ANTS-AP projects. She was awarded the Roger Green Medal for Human Factors in Aerospace (Royal Aeronautical Society) and the John Bruce Medal for Behavioural Science in Surgery (Royal College of Surgeons Edinburgh). Her current research is on non-technical skills, surgeons' intra-operative decision making and senior managers' safety leadership.

George G. Youngson, CBE, MBChB, PhD, FRCPEdin, FRCSEd is an emeritus professor of paediatric surgery at the Royal Aberdeen Children's Hospital and University of Aberdeen in Scotland. He is a past vice president of the Royal College of Surgeons of Edinburgh and is the founder of its Patient Safety Board. His interests and contributions have included re-configuration of children's surgical services in Scotland, surgical education, and clinical human factors as they affect surgical performance. He has been involved in the delivery of the NOTSS masterclass in various continents, including Asia, Europe, Africa and North America.

Steven Yule, MA, MSc, PhD, is an assistant professor of surgery at Harvard Medical School in Boston, Massachusetts. Dr Yule is an Organizational Psychologist and Human Factors scientist. He has been involved in the development of a number of assessment tools including NOTSS, SPLINTS and the Surgical Leadership Inventory (SLI). He has led the development of curricula in non-technical skills for surgical trainees and practising surgeons in the United Kingdom and United States. Dr. Yule is the director of education & research at the STRATUS Center for Medical Simulati Less