The "apparently normal personality" - the alter you view as "the client"You should not assume that the adult who function in the world, or who presents to you, week after week, is the "real" person, and the other personalities are less real. The client who comes to therapy is not "the" person; there are other personalities to meet and work

My client who has only three alter personalities besides the ANP was unaware of her multiplicity until she encountered a work-related trauma at age sixty. She became symptomatic as the hidden parts emerged to deal with the recent trauma.