Daphne Simeon M.D. has practiced psychiatry for over 30 years. Internationally recognized as a leading expert in depersonalization, she has published extensively in the field and is a contributor to the DSM-5 and DSM-5-TR. She has evaluated and treated many people with the disorder in research protocols and in clinical practice.
Jeffrey Abugel has been an editor and writer for more than 30 years, researching depersonalization and its relationship to philosophy and literature since experiencing it firsthand for more than a decade. He is a member of the American Medical Writers' Association and founder of the nonprofit Inititative for Depersonalization Studies.