This disorder was first defined in 1978 by Greek psychiatrist George N. Christodoulou, M.D., Ph.D, FRCPsych. Although the symptoms of subjective doubles have been described before 1978,[1] the disorder was not given a name until Christodoulou called it the syndrome of subjective doubles in the American Journal of Psychiatry. The article describes an 18-year-old female suffering from hebefreno-paranoid schizophrenia who believed that her next door neighbor had transformed her physical self into the patient's double.[2][6] The syndrome of subjective doubles and its variants were not given the name delusional misidentification syndromes until 1981.[4]