Dissociative fugue explained

Dissociative fugue
Synonyms:Fugue state, psychogenic fugue
Field:Psychiatry, Neurology

Dissociative fugue, formerly called a fugue state or psychogenic fugue, is a rare psychiatric phenomenon characterized by reversible amnesia for one's identity in conjunction with unexpected wandering or travel. This is sometimes accompanied by the establishment of a new identity and the inability to recall personal information prior to the presentation of symptoms.[1] Dissociative fugue is a mental and behavioral disorder[2] that is classified variously as a dissociative disorder,[3] a conversion disorder,[2] and a somatic symptom disorder. It is a facet of dissociative amnesia, according to the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5).

After recovery from a fugue state, previous memories usually return intact, and further treatment is unnecessary. An episode of fugue is not characterized as attributable to a psychiatric disorder if it can be related to the ingestion of psychotropic substances, to physical trauma, to a general medical condition, or to dissociative identity disorder, delirium, or dementia.[4] Fugues are precipitated by a series of long-term traumatic episodes. It is most commonly associated with childhood victims of sexual abuse who learn to dissociate memory of the abuse (dissociative amnesia).

Signs and symptoms

Symptoms of a dissociative fugue include mild confusion and once the fugue ends, possible depression, grief, shame, and discomfort. People have also experienced post-fugue anger.[5] Another symptom of the fugue state can consist of loss of one's identity.[6]

Diagnosis

Before dissociative fugue can be diagnosed, either dissociative amnesia or dissociative identity disorder must be diagnosed.[7] The only difference between dissociative amnesia, dissociative identity disorder and dissociative fugue is that the person affected by the latter travels or wanders. This traveling or wandering is typically associated with the amnesia-induced identity or the person’s physical surroundings.[8]

Sometimes dissociative fugue cannot be diagnosed until the patient returns to their pre-fugue identity and is distressed to find themselves in unfamiliar circumstances, sometimes with awareness of "lost time". The diagnosis is usually made retroactively when a doctor reviews the history and collects information that documents the circumstances before the patient left home, the travel itself, and the establishment of an alternative life.[9]

Functional amnesia can also be situation-specific, varying from all forms and variations of trauma or generally violent experiences, with the person experiencing severe memory loss for a particular trauma. Committing homicide, experiencing or committing a violent crime such as rape or torture, experiencing combat violence, attempting suicide, and being in automobile accidents and natural disasters have all induced cases of situation-specific amnesia.[10] [11] In these unusual cases, care must be exercised in interpreting cases of psychogenic amnesia when there are compelling motives to feign memory deficits for legal or financial reasons. However, although some fraction of psychogenic amnesia cases can be explained in this fashion, it is generally acknowledged that true cases are not uncommon. Both global and situationally specific amnesia are often distinguished from the organic amnesic syndrome, in that the capacity to store new memories and experiences remains intact. Given the very delicate and oftentimes dramatic nature of memory loss in such cases, there usually is a concerted effort to help the person recover their identity and history. This will sometimes allow the subject to recover spontaneously, when particular cues are encountered.

Definition

The cause of the fugue state is related to dissociative amnesia, (Code 300.12 of the DSM-IV codes[12]) which has several other subtypes:[13] selective amnesia, generalized amnesia, continuous amnesia, and systematized amnesia, in addition to the subtype "dissociative fugue".[3]

Unlike retrograde amnesia (which is popularly referred to simply as "amnesia", the state where someone forgets events before brain damage), dissociative amnesia is not due to the direct physiological effects of a substance (e.g., a drug of abuse, a medication, DSM-IV Codes 291.1 & 292.83) or a neurological or other general medical condition (e.g., amnestic disorder due to a head trauma, DSM-IV Code 294.0).[14] It is a complex neuropsychological process.[15]

As the person experiencing a dissociative fugue may have recently experienced the reappearance of an event or person representing an earlier trauma, the emergence of an armoring or defensive personality seems to be for some, a logical defense strategy in the situation.

Therefore, the terminology "fugue state" may carry a slight linguistic distinction from "dissociative fugue", the former implying a greater degree of "motion".[16] For the purposes of this article, then, a "fugue state" occurs while one is "acting out" a "dissociative fugue".

The DSM-IV[3] defines "dissociative fugue" as:

The Merck Manual[17] defines "dissociative fugue" as:

One or more episodes of amnesia in which the inability to recall some or all of one's past and either the loss of one's identity or the formation of a new identity occur with sudden, unexpected, purposeful travel away from home.

In support of this definition, the Merck Manual[17] further defines dissociative amnesia as:

An inability to recall important personal information, usually of a traumatic or stressful nature, that is too extensive to be explained by normal forgetfulness.

Prognosis

The DSM-IV-TR states that the fugue may have a duration from days to months, and recovery is usually rapid. However, some cases may be refractory. An individual usually has only one episode.

Cases

Fictional cases

See also

External links

Notes and References

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  2. Drs; Web site: The ICD-10 Classification of Mental and Behavioural Disorders Clinical descriptions and diagnostic guidelines . Norman. Sartorius. Norman Sartorius. Henderson. A.S.. Strotzka. H.. Lipowski. Z. . Yu-cun. Shen. You-xin. Xu . Strömgren. E. . Glatzel. J. . Kühne. G.-E.. Misès. R.. Soldatos. C.R. . Pull. C.B.. Giel. R.. Jegede. R.. Malt. U. . Nadzharov. R.A.. Smulevitch. A.B.. Hagberg. B.. Perris. C.. Scharfetter. C. . Clare. A. . Cooper. J.E. . Corbett. J.A. . Griffith Edwards . J. . Gelder. M.. Goldberg. D.. Gossop. M.. Graham. P.. Kendell. R.E. . Marks. I.. Russell. G.. Rutter. M.. Shepherd. M.. West . D.J.. Wing . J. . Wing. L.. Neki. J.S. . Benson. F.. Cantwell. D. . Guze. S. . Helzer. J.. Holzman. P.. Kleinman. A.. Kupfer. D.J.. Mezzich. J. . Spitzer. R. . Lokar . J. . . . bluebook.doc . 111. 3 July 2021 . Microsoft Bing.
  3. Dissociative Fugue (formerly Psychogenic Fugue) (DSM-IV 300.13, Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition)
  4. Book: American Psychiatric Association . Diagnostic and statistical manual of mental disorders : DSM-5 . American Psychiatric Association . Washington, D.C . 2013 . 9780890425541 . registration .
  5. The Merck Manual
  6. Web site: What Is Dissociative Fugue?. WebMD. en. 2019-11-08.
  7. Web site: Dissociative Fugue: What It Is, Causes, Symptoms & Treatment . 2023-11-07 . Cleveland Clinic . en.
  8. Book: Diagnostic And Statistical Manual of Mental Disorders . American Psychiatric Association . 2013 . 978-0-89042-555-8 . 5th . 290–298.
  9. https://www.anxietyfoundation.com/unveiling-the-mystery-of-dissociative-fugue-insights-into-a-rare-disorder/ Dissociative fugue
  10. Kopelman . M. D. . 2002-10-01 . Disorders of memory . Brain . 125 . 10 . 2152–2190 . 10.1093/brain/awf229. free . 12244076 .
  11. Arrigo . Jean Maria . Pezdek . Kathy . October 1997 . Lessons From the Study of Psychogenic Amnesia . Current Directions in Psychological Science . en . 6 . 5 . 148–152 . 10.1111/1467-8721.ep10772916 . 0963-7214.
  12. Web site: Dissociative Amnesia, DSM-IV Codes 300.12 (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition) . https://web.archive.org/web/20070928075634/http://www.psychiatryonline.com/content.aspx?aID=9708 . dead . 2007-09-28 . Psychiatryonline.com . 2011-11-28 .
  13. http://www.psychnet-uk.com/dsm_iv/dissociative_amnesia.htm Dissociative Amnesia, DSM-IV Code 300.12 (PsychNet-UK.com)
  14. http://www.psychnet-uk.com/dsm_iv/_misc/complete_tables.htm Complete List of DSM-IV Codes (PsychNet-UK.com)
  15. Web site: Background to Dissociation (The Pottergate Centre for Dissociation & Trauma) . Dissociation.co.uk . 2011-11-28 . dead . https://web.archive.org/web/20120114165147/http://www.dissociation.co.uk/background.asp . 2012-01-14 .
  16. Web site: Amnesia Concepts In Psychology . 2023-02-21 . en-US.
  17. [Merck Manual]
  18. Web site: Experts say that Roberts may indeed have amnesia . Juneau Empire . 1997-07-17 . 2011-11-28 . https://web.archive.org/web/20111120191115/http://juneauempire.com/stories/071797/amnesia.html . 2011-11-20 . dead .
  19. Web site: Shows. Five. 2008-04-03. 2007-04-03. https://web.archive.org/web/20070403055810/http://www.five.tv/programmes/extraordinarypeople/manwithnopast/. dead.
  20. News: The Associated Press . Update: Missing Oregon teacher rescued from Long Island Sound . OregonLive.com . 2008-09-16. 2013-11-16.
  21. How a Young Woman Lost Her Identity. Aviv. Rachel. 2018-03-26. The New Yorker. 2018-03-30. en. 0028-792X.
  22. Web site: Hannah Upp Updates Her Status, Remembers Little. Gothamist. dead. https://web.archive.org/web/20150322192925/http://gothamist.com/2008/10/05/hannah_upp_updates_her_status_remem.php. 2015-03-22.
  23. News: Marx. Rebecca Flint. Didziulis. Vytenis. 2009-02-27. A Life, Interrupted. en-US. The New York Times. 2021-11-19. 0362-4331.
  24. News: Missing New York City School Teacher Spotted in Apple Store . Fox News . 2008-09-09 . 2018-12-05 . https://web.archive.org/web/20131222090229/http://www.foxnews.com/story/2008/09/09/missing-new-york-city-school-teacher-spotted-in-apple-store/ . 2013-12-22 . dead .
  25. Web site: Mimica . Mila . Md. Woman With Rare Form of Amnesia Located . NBC4 Washington . 2013-09-05 . 2013-11-16.
  26. Web site: Hannah Upp of Kensington found in Wheaton, Md. . wusa9.com . 2013-09-05 . 2013-11-16 . dead . https://web.archive.org/web/20131213132119/http://www.wusa9.com/news/article/273588/158/Missing-woman-found-in-Wheaton . 2013-12-13 .
  27. News: Community asked to help search for missing teacher Hannah Upp . Virgin Island Daily News . September 19, 2017.
  28. News: Hannah Upp's mother asks for help in the search for her missing daughter. Suzanne . Carlson. The Virgin Islands Daily News. 2018-03-30. en.
  29. Web site: What Happened to Hannah Upp? The Mystery Around the Young Woman's Disappearance Continues.
  30. Web site: For Man With Amnesia, Love Repeats Itself . NPR . 2012-12-13 . 2013-11-16.
  31. 17 March 2012 . Dissociative Fugue . . 17 March 2013 .