Context: We are making a short film on different mental disorders.

The Question: If it is realistically feasible for a 'alter-persona' of a person with Multiple Personality Disorder to have different mental disorders of their own such as schizophrenia and depression.

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    $\begingroup$ This question would be valid, if MPD/DID diagnosis wasn't a cluster-muffin of controversy and debate. However, because there is still great uncertainty surrounding what MPD/DID even is, we can't answer your question, because it's incredibly difficult to do scientific research on it. $\endgroup$ – Seanny123 Oct 25 '17 at 19:48

Yes. For example, people suffering from DID can also suffer from depression.


Since, by definition "dissociative identity disorder is characterized by the presence of two or more distinct or split identities or personality states that continually have power over the person's behavior. ... ", then the other disorder (e.g. depression) can be unique to a persona.


While a DID system can include a lot of inside people with different ages, genders, personalities and ailments, the mental health disorder describes the whole system. But, as tale said, different alters can manifest different mental health symptoms, such as depression, anxiety, paranoia, hallucinations, psychosis and so on. These are some of the same symptoms that other mental health disorders manifest, and in general DID is comorbid with other mental illnesses, such as BPD, CPTSD, ADHD, other personality and mood disorders and so on. This is because growing up in extreme emotional/physical/sexual abuse, with no ability to escape, can result on one's mind being fractured to provide a certain level of escape through extreme dissociation (hence DID). You can imagine that someone who survived that in early childhood and on will have a host of mental health issues, some of which are sometimes possible to compensate for, or to medicate for, but most are impossible to cure, since brain plasticity dramatically declines after childhood.

TL;DR: specific symptoms, shared disorders.

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    $\begingroup$ This post does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. $\endgroup$ – Arnon Weinberg Oct 29 '17 at 8:12

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