Yes, people with Dissociative Identity Disorder (DID), formerly known as Multiple Personality Disorder (MPD), typically have varying degrees of awareness of their alters (distinct identity states). The level of awareness can differ from person to person and can even vary within the same individual.
In some cases, individuals with DID may have little to no awareness of their alters. Gaps in memory (amnesia) often occur between switches from one alter to another, and the person may not remember what happened while a different alter was in control. This lack of awareness is known as amnesic barriers, and it is one of the defining features of DID.
On the other hand, some individuals with DID have a higher level of co-consciousness, meaning that they have some awareness or knowledge of what other alters are experiencing or doing. This co-consciousness can vary in strength and frequency, allowing different alters to have some communication or knowledge about each other.
The communication between alters can take various forms, such as internal dialogue, leaving messages for each other through journals or notes, or even verbal communication in the mind. Some individuals may also experience passive influence, where one alter may influence the thoughts, feelings, or actions of another alter without direct communication.
It is essential to understand that DID is a complex and individualized disorder, and the experiences of individuals with this condition can differ widely. The interaction and communication between alters are shaped by a person's unique history, coping mechanisms, and internal dynamics.
Therapy for DID often focuses on facilitating communication and cooperation between alters to promote internal collaboration and understanding. As alters become aware of each other and work together, it can lead to a more integrated sense of self, contributing to the overall treatment and healing process.