What is Multiple Personality Disorder?

Multiple Personality Disorder, commonly called Dissociative Identity Disorder, is a mental disorder in which a single individual develops two or more distinct and independent personalities who are usually completely unaware of the other’s presence. In some cases, the individual has a dominant personality and one or more subordinate personalities. The dominant personality completely loses the traces of the time in which the subordinate personality takes control, but the latter could remember the dominant personality as a completely different individual, often criticizing the actions of that individual. The various personalities are so different from one another that they can develop different writing styles or have different electroencephalogram readings.

Presentation and symptoms

Some famous cases of multiple personality disorder have revealed how seriously this disorder can affect the person suffering from it. In the late 1970s, an American citizen named Billy Milligan became the subject of a highly controversial court case. He was committed with several crimes and three rapes. However, when psychologists interacted with him in the course of his defense, he was diagnosed with a multiple personality disorder and is believed to carry distinct personalities of 24 with two of his personalities, a Russian man and a lesbian woman, held responsible for having committed the crimes. He became the first to be acquitted of a serious crime for multiple personality disorder. His biography became the subject of books, films and music after his death from cancer in 2014.The Minds of Billy Milligan“It is based on its history. The symptoms of people with multiple personality disorder are wide and varied depending on the personality possessed by the person (which can range from 2 to up to 100). The symptoms, however, cannot be explained by seizures “Substance abuse or other medical conditions. Malingering is possible in some cases and therefore the possibility of a fictitious disorder. Each personality has its own self-image, behavior and habits, separate names and separate physical expressions. Self-destructive behavior and aggressive is not uncommon.anxiety and guilt often engulf the person suffering from the complex disorder and frequent gaps in memories traumatize the person as he or she is unable to remember any of the events that occur during the transition to another personality.

How common is it?

Some of the first cases of what we now recognize as multiple personality disorder have been described by the Swiss Swiss scientist Paracelsus in the 16th Century. However, very little data on the prevalence of multiple personality disorder globally exists at this date. However, it is believed that 1-3% of the population suffers from this disorder. It is known that females are affected 5 to 9 times more than males, which could also be due to the fact that men are often not diagnosed because they are already locked up in prison because of the crimes committed by their most aggressive personalities. The disease is more common in young adults and gradually decreases with age. In children, although rarely diagnosed at a young age, the rates between males and females are almost equal.


The treatment of multiple personality disorder is aimed at integrating separate personalities into a single one. This is a long-term process, which requires in-depth psychiatric consultation of the patient. It is necessary to identify the root cause of the disease, such as childhood abuse or other forms of trauma that triggered the disorder in the individual. The trauma must be brought to the conscious awareness of the patient and the fears engraved in the mind of the subconscious mind of the person must be completely erased. Also the dominant personality of the patient must be made aware of the other personalities to allow the dominant personality to gradually subjugate the other personalities so that the person emerges with a uniform personality.

Continuous research

The rarity and extremely complex nature of multiple personality disorder makes it extremely difficult to study, diagnose and treat this disorder. The occurrence of this disorder clearly shows us how little we know about the human brain and consciousness. To better understand the disease, it is necessary to study the human brain and its processes more closely. Intensive research must be conducted in the fields of neuroscience and psychology to reach a conclusion on the cause and a detailed scientific explanation of the multiple personality disorder. Only then will it be possible to develop adequate diagnostic tools and treatment options for patients of this disorder


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