what is depersonalization
For the diagnosis, see depersonalization disorder. Depersonalization (or depersonalisation) is an anomaly of self-awareness. It can consist of a reality or detachment within the self, regarding one's mind or body, or being a detached observer of oneself.t can be a disturbing experience. Chronic depersonalization refers to depersonalization/derealization disorder, which is classified by the DSM-5 as a dissociative disorder.