Thread:SpiritedDreaming/@comment-27966940-20160728044853/@comment-25396609-20160728224345

Kirito Rose wrote: So, in answer to my edit?

EDIT: I'm thinking of it as Greed/Ling from FMAB.

Like this.

In the event of dissociative identity disorder, the person will typically be unaware that they even have it until others begin to point out the discrepencies. They will often have memory gaps when different personalities take hold, and are fully unaware of the existance of the other personalities.

It is not unheard of for one or more personalities to become aware of the presence of the others and attempt indirect communications, such as leaving notes for themself, but they are not capable of talking directly with their other selves.

I can't remember who it was, but one psychologist described the perfect case of dissociative identity disorder as not having memory gaps, but as having false memories or altered perceptions of events which occured while the another personality was in control.

They have no way to control when a change will happen, and there is no 'fighting for control' as you put it, the changes are at worst random and at best related to a particular psychological cue, such as one personality taking control when the other is asleep. There is typically one 'main' or 'true' persona, that being the original personality form before the disorder began to manifest, or the one which is active most often.

tl;dr, in a true case of dissociative identity disorder it is impossible for the identities to communicate in any way, shape, or form, without use of unreliable indirect methods, and they have no way of forcibly taking control. They are almost never directly aware of each other, but may realize they are one of several personae due to discrepencies in their personal life or other factors.