There is no specific maximum number of alters that can share memories in Dissociative Identity Disorder (DID). The number of alters in a person with DID can vary widely and is not limited to a certain count. Some individuals may have a few alters, while others may have dozens or even more.
In DID, each alter is considered a distinct personality state with its own unique set of memories, behaviors, and characteristics. Some alters may have more access to certain memories than others, and there can be varying levels of communication and co-consciousness among the alters.
The number of alters and the extent to which they share memories can depend on several factors, including the severity and complexity of the individual's traumatic experiences and their ability to cope with them through dissociation. Additionally, the level of integration or communication among the alters can influence the sharing of memories.
It's important to note that the understanding of DID is still evolving, and research in this area is ongoing. The experiences of individuals with DID can be highly individualized, and the presentation of the disorder can differ significantly from one person to another. Treatment for DID typically involves therapy and a focus on increasing communication and cooperation among the alters to promote integration and healing.