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Other specified dissociative disorder (OSDD) is a mental health diagnosis for pathological dissociation that matches the DSM-5 criteria for a dissociative disorder, but does not fit the full criteria for any of the specifically identified subtypes, which include dissociative identity disorder, dissociative amnesia, and depersonalization ...
Dissociative amnesia or psychogenic amnesia is a dissociative disorder "characterized by retrospectively reported memory gaps. These gaps involve an inability to recall personal information, usually of a traumatic or stressful nature." [1] The concept is scientifically controversial and remains disputed. [2] [3]
As patients with dissociative disorders likely experienced intense trauma in the past, concomitant dissociative disorders should be considered in patients diagnosed with a stress disorder (i.e. PTSD or acute stress disorder). [50] The diagnosis of depersonalization disorder can be made with the use of the following interviews and scales:
Other specified dissociative disorder (OSDD) has multiple types, which OSDD-1 falling on the spectrum of dissociative identity disorder; it is known as partial DID in the International Classification of Diseases (see below). The ICD-11 lists dissociative disorders as: [7] Dissociative neurological symptom disorder; Dissociative amnesia
[24] [25] Although some dissociative disruptions involve amnesia, other dissociative events do not. [26] Dissociative disorders are sometimes triggered by trauma, but may be preceded only by stress, psychoactive substances, or no identifiable trigger at all. [27] The ICD-10 classifies conversion disorder as a dissociative disorder. [18]
Can experience emotional amnesia rather than physical amnesia. [2] [3] DDNOS 1b – Like DID but no amnesia between alters. [2] [3] DDNOS 2 – Derealization without depersonalization. [2] DDNOS 3,4,5,etc. – DID but with specific symptoms. Eg) Identity change due to brainwashing, acute dissociative reaction, dissociative trance, Ganser ...
A random community-based survey of 1,000 adults in the US rural south found a 1-year depersonalization prevalence rate at 19%. Standardized diagnostic interviews have reported prevalence rates of 1.2% to 1.7% over one month in UK samples, and a rate of 2.4% in a single-point Canadian sample. [2]
The effects of dissociatives can include sensory dissociation, hallucinations, mania, catalepsy, analgesia and amnesia. [4] [5] [6] According to Pender (1972), "the state has been designated as dissociative anesthesia since the patient truly seems disassociated from his environment."