Amnesic Barriers

amnesic barriers:

Amnesic barriers are barriers in a system that prevent headmates from remembering what other headmates have done, or remembering trauma or events another headmate may hold. It also can protect headmates from being known by the system, to protect the core or host's identity. This term is most often used for DID systems. Breaking an amnesic barrier before its time may be traumatizing for the system.

Related Terms
Amnesic barriers fall under an umbrella type of amnesia, called functional amnesia or psychogenic amnesia. While not the same, dissociative amnesia is similar to amnesic barriers, albeit it is not restricted to systems and usually applies to traumagenic systems.