A new if not already coined term under the plurality umbrella where one is multiple people in one body, NOT a system, but quite literally multiple people and/or beings. This form of plurality most commonly exists but becomes far more prominent later on in life, or develops at some point for any reason.
Full desc under cut
A tempority would consist of times where each being in the body is experiencing life with their own age, memories, gender, aesthetic, ideologies and even allergies, disorders, impairments, disabilities etc, due to being a whole seperate soul squished into one body, when one being is experiencing everyday life, is called a Control Period.
If bodies are swapped the memories of what one life experienced will be stored for them and completely wipe out those memories if they haven't been continued or experienced the same//differently for another (e.g. each member in the vessel having the same caregiver).
These members do not interact verbally or physically with one another, however there can be visualization that causes them to interact with yourself and in fact that is common, though you may not have the same voice as them a common description would be "narrators in your head" or them helping you get through the Control Period living as something that is not you bodily. They may give coping mechanisms and comfort if their own memories of certain experiences cause triggers that you shouldn't have as you've not gone through anything, or simply just helping you do something like read and write.
This functions without disassociation as that is something seperate, switching member happens during sleep or if triggered, which is extremely difficult do with this what you will.
