My pieces of memories (alters) are the age that I was at which the abuse situation memory originally happened and got stored in my unconscious memory level of thinking. None of my memory pieces "aged" during the co conscious and integration processes. One minute I had no memory and the next I was experiencing that memory while remaining aware of both the present (My therapist and the room) and the memory that I was experiencing. and from then on that piece of memory has been a part of my conscious memorys and I could think about that memory any time I want and I do not act it out.

I do have some memory pieces that have said the age is one number and then another number older and younger. this happens because if someone has an abuse happen at age 10 that is simular or the same type of abuse as what they went through at an earlier age the two situations get stored as the same "file name" so to speak.

Sometimes a therapist will use hypnosis and ask the person to imagine that piece of memory as it would look if it was a person and then imagine that memory as a person that got older. but they rarely do that now. Instead the therapist works with the client on grounding techniques so that they naturally go through the process with co consciousness and integration.

You can read about my experiences with this process in my blog.