Dissociative Identity Disorder is thought to stem from severe, ongoing childhood trauma, whereas schizophrenia usually manifests in the late teens to early 20's. While they sometimes occur in the same person, they are not related disorders and no causality is presently known.
Additional info:
The answer to the question "what is similar about DID and schizophrenia?" gives different information that sounds more reliable:
Although so-called schizophrenia is said to be a brain disease, while DID is acknowledged to be a psychological reaction to traumatic life events, so far no evidence has been found to support this distinction, and prove the brain disease hypothesis of schizophrenia to be true. In fact, newer research strongly indicates that both are caused by childhood trauma. Dissociation is not restricted to DID, but can be observed in schizophrenia as well. If a person is labelled with schizophrenia or DID depends on to which extent dissociation in relation to other trauma responses is predominant. If a fight, flight, or freeze response is predominant, the person will most likely be labelled with schizophrenia. If dissociation is the predominant feature she will probably be labelled with DID.
Dissociative disorder is previously known as multiple personality disorder. It is possible to get hold of dissociative disorder through a spouse, a significant other or another person with the disorder.
Yes, it's possible for someone with Dissociative Identity Disorder (DID) to have alters (distinct personalities) with different characteristics, which might include traits that resemble symptoms of schizophrenia. However, this doesn't mean that the person actually has schizophrenia. DID and schizophrenia are separate mental health conditions with distinct diagnostic criteria. It's important to consult with mental health professionals for accurate diagnosis and appropriate treatment.
Yes, in my opinion, narcissism is a type of schizophrenia.
Is it POSSIBLE? Yes. However, having one does mean necessarily you will have the other.
Opinions are divided on that. Some clinicians say that mild cases of schizophrenia are possible, and are in fact true in cases of paranoid, schizoid, and schizotypal personality disorders. Others say that schizophrenia is schizophrenia, and you cannot have a milder form of it.
It is technically possible- there is nothing specifically disallowing the diagnosis of all three- but it is unlikely. Schizoaffective disorder and OCD may be found together. In fact, 23% of people with schizophrenia can also be diagnosed with OCD. However, Borderline Personality Disorder is rarely found in people with schizophrenia and OCD.
In principle it ought to be possible to treat sociopaths, but generally they do their utmost to avoid treatment. It's also said that their inability to learn (from experience) causes problems.
Dopamine. Increase in dopemine is a possible cause for schizophrenia.
Yes. Bipolar disorder, depression, schizophrenia, etc. It is best to seek medical attention as soon as possible.
In the 1950s, PCP was being investigated as a possible dissociative anesthetic in humans.
Partly that they really DO NOT KNOW what it is that is why they keep changing names, relabeling and recatorizing it. They want to put multiples in a unique box and demand they live up to the diagnosis. The truth is that every multiple is different with ONE common denominator which is trauma in early childhood. Because every person is unique no multiple is alike. They cannot merely "tag" a person and say THIS IS YOUR PROBLEM! I can appreciate a more "scientific" point of view of the functioning of the human brain done by Dr. Fredrick Schiffer of Harvard. His study of the human brain actually proves that it is possible for two distinct personalities to develope in early childhood on both sides of the brain, thus creating a "separate" personality of right-brain, left-brain thinking, responses and developmental behaviors. Researchers are more objective in this study than therapists who love to take on such absurd notions that multiples are MENTALLY ILL and must be CURED of some disease or disorder. But in fact, those that suffer trauma and disassociated from it are relatively easier to convince that they should "control" such impulses themselves rather than treating the alters individually. This is why therapy takes TOO LONG in most cases. The "disassociator" is required by therapists to STOP DISASSOCIATING and TAKE CONTROL of themselves rather than BECOMING other people. They are doing MORE DAMAGE THAN GOOD because if one "disassociates" how can they be IN CONTROL when they "disappear"? Disassociators are NOT in control, period and research has proven the parts of the brain SHUT DOWN while other parts continue to function. It really is a fascinating study. You might want to pick up the book OF TWO MINDS by Dr. Schiffer. GOOD LUCK!
Prevention of DID requires intervention in abusive families and treating children with dissociative symptoms as early as possible.