TheGangsAllHere wrote:
This confusion came up on another forum--the part I bolded, so that's why it caught my eye. Everything Floralie said is correct except that in DSM-5, any amnesia meets the DID criterion. It does not have to be amnesia between alters, in the present. This is what the criterion says: "Amnesia must occur, defined as gaps in the recall of everyday events, important personal information, and/or traumatic events." So having only 5 memories before the age of 13 definitely counts as amnesia for a DID diagnosis.
Many professionals seem to think that amnesia between alters is necessary when it isn't. It's all sort of arbitrary, and like Floralie said, both OSDD and DID are severe dissociative disorders, and they have the same cause and the same treatment, so trying to distinguish between them isn't very useful.
Where I live in, we use ICD10, not DSM. The way I have seen it put down is something similar to saying person needs to be sometimes unable to tell who they really are. It's a big thing to ask from someone to have, because if others know who the host is, like they usually or at least very commonly seem to know, they may not identify with them, but usually they are very able to pretend they are the host. It can be that this is not the latest way to see it. In my language that is pretty much the only definition I can find, trying to Google diagnostic criteria offers Wikipedia.

I don't actually know what "place" and where holds the information to diagnostic criteria to ICD 10 in my language.
In English I found
- A disorder characterized by the presence of two or more identities with distinct patterns of perception and personality which recurrently take control of the person's behavior; this is accompanied by a retrospective gap in memory of important personal information that far exceeds ordinary forgetfulness. The changes in identity are not due to substance use or to a general medical condition.
- A dissociative disorder in which the individual adopts two or more distinct personalities. Each personality is a fully integrated and complex unit with memories, behavior patterns and social friendships. Transition from one personality to another is sudden.
Then it would be "retrospective gap in memory of important personal information that far exceeds ordinary forgetfulness". It doesn't say about what and when. But that is kind of tricky, since all the information is in the system, present day and past, anyway. Just not in one alter.
" Each personality is a fully integrated and complex unit with memories, behavior patterns and social friendships." Now that's weird. Every part needs to be fully developed, there can't be fragments? AND they have to have their own social friendships? That's a lot, I don't believe any of us in here have that.
I read before Birdsong said the same thing. Still people with OSDD 1b explain it's like DID, but there's one part of personality who never leaves, so there's co-consciousness or main front alone, but never anyone else alone. Does it mean that in order for someone to have OSDD 1b they in fact can not have any kind of amnesia what so ever?
Or is it that the definition is still the same, it is in switching, but in DID one can switch fully to be different kind of person, but still have same sense of "me". I mean when you switch the way you become younger and think differently than normally, but maybe don't even realize it until it's over and you're back in normal you again? And in OSDD 1b you can co-front and be co-conscious without ever losing the touch to who are you and how you are like?
What ever the case with OSDD 1b is, that does sound way more reasonable to me, the way I've seen it explained in my language is so weird, it must come from someone who doesn't understand how DID works. It's very unlikely there's someone who doesn't know anything about present day realities. Or there surely many time is, like all trauma parts stuck in past, but I doubt they're there to take tests in diagnosing processes. They can be if things like that are a trigger to them, but usually it's someone who has realized there's something off in them.
It doesn't really matter what the definitions are in the end, because all people with parts do have same thing, some with higher dissociative walls than others.