identity disorder (DID). The DSM states that "This category includes identity disturbance associated with less-than-marked discontinuities in sense of self and agency, or alterations of identity or episodes of possession in an individual who reports no dissociative amnesia". The ICD-11 describes OSDD-1 as "Partial dissociative identity disorder". OSDD type 2 OSDD-2 describes a dissociative identity disturbance caused by "prolonged and intense coercive persuasion". The DSM gives the examples of "brainwashing, thought reform, indoctrination while captive, torture, long-term political imprisonment, recruitment by sects/cults or by terror organizations." People with OSDD-2, as a result, experience distressing changes to and/or questioning of their identity. OSDD type 3 OSDD-3 is diagnosed when a person experiences acute dissociative reactions to stressful events. These reactions last anywhere from a few hours to weeks, but typically less than a month. The dissociative conditions are characterised by "constriction of consciousness", including "depersonalization; derealization; perceptual disturbances (e.g., time slowing, macropsia); micro-amnesias; transient stupor; and/or alterations in sensory-motor functioning (e.g., analgesia, paralysis)." OSDD type 4 OSDD-4 is characterised by a dissociative trance; "an acute narrowing or complete loss of awareness of immediate surroundings that manifests as profound unresponsiveness or insensitivity to environmental stimuli." The DSM specifies that "The dissociative trance is not a normal part of a broadly accepted collective cultural or religious practice". In the ICD-11, this condition warrants a separate diagnosis of Trance disorder. See also Dissociation Dissociative identity disorder International Classification of Diseases Personality References Dissociative disorders