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Dissociative identity disorder (DID), previously known as multiple personality disorder (MPD), is one of multiple dissociative disorders in the DSM-5, ICD-11, and Merck Manual. It has a history of extreme controversy.
In psychology and mental health, the host is the most prominent personality, state, or identity in someone who has dissociative identity disorder (DID). The other personalities, besides the host, are known as alter personalities, or just "alters". The host may or may not be the original personality, which is the personality a person is born with. Additionally, the host may or may not be the personality that coincides with the official legal name of the person. Often this is thought to be the root of the person's psyche, or at least a key figure for completion of therapy, whether or not it has integration of the host and alters as a goal.
Abnormal psychology is the branch of psychology that studies unusual patterns of behavior, emotion, and thought, which could possibly be understood as a mental disorder. Although many behaviors could be considered as abnormal, this branch of psychology typically deals with behavior in a clinical context. There is a long history of attempts to understand and control behavior deemed to be aberrant or deviant, and there is often cultural variation in the approach taken. The field of abnormal psychology identifies multiple causes for different conditions, employing diverse theories from the general field of psychology and elsewhere, and much still hinges on what exactly is meant by "abnormal". There has traditionally been a divide between psychological and biological explanations, reflecting a philosophical dualism in regard to the mind–body problem. There have also been different approaches in trying to classify mental disorders. Abnormal includes three different categories; they are subnormal, supernormal and paranormal.
Dissociation is a concept that has been developed over time and which concerns a wide array of experiences, ranging from a mild emotional detachment from the immediate surroundings, to a more severe disconnection from physical and emotional experiences. The major characteristic of all dissociative phenomena involves a detachment from reality, rather than a false perception of reality as in psychosis.
Truddi Chase was an American author. She is best known for the book When Rabbit Howls (1987), an autobiography about her experiences after being diagnosed with dissociative identity disorder.
Sybil is a 1973 book by Flora Rheta Schreiber about the treatment of Sybil Dorsett for dissociative identity disorder by her psychoanalyst, Cornelia B. Wilbur.
Dorothy Otnow Lewis is an American psychiatrist and author who has been an expert witness at a number of high-profile cases.
Typhoid Mary Fisk, also known as Bloody Mary and Mutant Zero, is a supervillain appearing in American comic books published by Marvel Comics. The character was initially depicted as an enemy of Daredevil suffering from dissociative identity disorder, but has also come into conflict with Spider-Man and Deadpool, ultimately marrying the crime boss the Kingpin, as his second wife.
Morton Henry Prince was an American physician who specialized in neurology and abnormal psychology, and was a leading force in establishing psychology as a clinical and academic discipline.
Dissociative disorders (DDs) are a range of conditions characterized by significant disruptions or fragmentation "in the normal integration of consciousness, memory, identity, emotion, perception, body representation, motor control, and behavior." Dissociative disorders involve involuntary dissociation as an unconscious defense mechanism, wherein the individual with a dissociative disorder experiences separation in these areas as a means to protect against traumatic stress. Some dissociative disorders are caused by major psychological trauma, though the onset of depersonalization-derealization disorder may be preceded by less severe stress, by the influence of psychoactive substances, or occur without any discernible trigger.
Hervey Milton Cleckley was an American psychiatrist and pioneer in the field of psychopathy. His book, The Mask of Sanity, originally published in 1941 and revised in new editions until the 1980s, provided the first clinical description of psychopathy. He defined the term somewhat more broadly than it is understood today, as referring to somebody who behaves in a destructive manner despite lacking overt signs of psychosis or neurosis; this is reflected in the term "mask of sanity", derived from Cleckley's belief that a psychopath can appear normal and even engaging, but that the "mask" conceals a mental disorder. By the time of his death, Cleckley was better remembered for a vivid case study of a female patient, published as a book in 1956 and turned into a movie, The Three Faces of Eve, in 1957. His report of the case (re)popularized the diagnosis of multiple personality disorder in America. The concept of psychopathy continues to be influential through forming parts of the diagnosis of antisocial personality disorder, the Psychopathy Checklist, and public perception.
Cornelia Burwell Wilbur was an American psychiatrist. She is best known for a book, written by Flora Rheta Schreiber, and two television films titled Sybil, about the psychiatric treatment she rendered to a person diagnosed with dissociative identity disorder.
Ernest Ropiequet "Jack" Hilgard was an American psychologist and professor at Stanford University. He became famous in the 1950s for his research on hypnosis, especially with regard to pain control. Along with André Muller Weitzenhoffer, Hilgard developed the Stanford Hypnotic Susceptibility Scales. A Review of General Psychology survey, published in 2002, ranked Hilgard as the 29th most cited psychologist of the 20th century.
Corbett H. Thigpen was an American psychiatrist and co-author of the book The Three Faces of Eve (1957).
Nicholas Peter Spanos, was professor of psychology and director of the Laboratory for Experimental Hypnosis at Carleton University from 1975 to his death in a single engine plane crash on June 6, 1994. Spanos conducted multiple studies that challenged common beliefs. He tried to distinguish the difference between common beliefs about hypnosis and what was actually occurring. These studies conducted by Spanos led to the modern understanding that hypnosis is not an altered state and is actually suggested behaviors that the participant chooses to go along with or not. Along with this, Spanos conducted studies regarding dissociative identity disorder in which he stated that multiple personalities are not a product of trauma but are based on social norms.
Personality disorders (PD) are a class of mental health conditions characterized by enduring maladaptive patterns of behavior, cognition, and inner experience, exhibited across many contexts and deviating from those accepted by the culture. These patterns develop early, are inflexible, and are associated with significant distress or disability. The definitions vary by source and remain a matter of controversy. Official criteria for diagnosing personality disorders are listed in the sixth chapter of the International Classification of Diseases (ICD) and in the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM).
The International Society for the Study of Trauma and Dissociation (ISSTD) is a controversial nonprofit professional organization of health professionals and individuals who are interested in advancing the scientific and societal understandings of trauma-based disorders, including posttraumatic stress disorder, complex posttraumatic stress disorder, complex trauma, and the dissociative disorders.
Louis Vivet was one of the first mental health patients to be diagnosed with dissociative identity disorder, colloquially known as "multiple [or] split personalities." Within one year of his 1885 diagnosis, the term "multiple personality" appeared in psychological literature in direct reference to Vivet.
Nancy McWilliams, Ph.D., ABPP., is emerita visiting professor at the Graduate School of Applied and Professional Psychology at Rutgers University. She has written on personality and psychotherapy.
Multiplicity, also called plurality or polypsychism, is an online subculture of people identifying as having or using multiple personalities, or as having multiple people occupying one mind and body. Multiplicity communities mostly exist online through social media platforms.
References
- 1 2 3 Prince, Morton (1906). The dissociation of a personality: a biographical study in abnormal psychology. M. M. Lld.
- ↑ Alderidge-Morri (1991). Multiple Personality: An Exercise in Deception. Psychology Press. pp. 4–5. ISBN 978-0-86377-234-4.
- ↑ Kluft, Richard (1993). Clinical Perspectives on Multiple Personality Disorder. American Psychiatric Pub. p. 358. ISBN 0880483652.