My wife treats some of them, and they definitely do exist. The human brain is a fantasticly complex organ, and these personalities help the brain to overcome severe trauma.
but it is extremely rare of course.
now my wife read it and commented: no, this article is very well written and very true.
From what I've read (which makes me worse informed than ill-informed) most experts are still stating that most split-personality symptoms develop once the diagnosis is made and there is a chicken and egg concern that people aren't diagnosed without being made aware of it which may be hiding broader/other mental problems in the process.
Out of curiosity does experience in treatment match these concerns?
but it is extremely rare of course.
now my wife read it and commented: no, this article is very well written and very true.