autoscopy
A rare psychiatric or neurological phenomenon in which a person sees a double or mirror image of themselves, often associated with conditions such as epilepsy or migraine. Related to out-of-body experiences (体外離脱).
See also: 体外離脱
Autoscopy can appear as a premonitory symptom of an epileptic seizure.
He described his autoscopic experience as if he were watching himself from the outside.