In psychology, false memory syndrome (FMS) is a condition in which a person's identity and relationships are affected by false memories of psychological trauma, recollections that are factually incorrect yet strongly believed. Peter J. Freyd originated the term partly to explain what he said was a false accusation of sexual abuse made against him by his daughter Jennifer Freyd and his False Memory Syndrome Foundation (FMSF) subsequently popularized the concept. The principle that individuals can hold false memories and the role that outside influence can play in their formation is widely accepted by scientists. However FMS is not recognized as a psychiatric illness in any medical manuals including the ICD-10 or the DSM-5.