Yes, it is theoretically possible for a non-autistic person with Dissociative Identity Disorder (DID) to have an alter that presents as autistic. In DID, each alter can have its own unique personality traits, behaviors, and experiences, separate from the primary identity. These alters can be quite diverse and might even display characteristics that the primary identity does not possess.
If a person with DID has an alter that appears to exhibit behaviors consistent with autism spectrum disorder (ASD), it is essential to understand that this presentation is within the context of DID and not necessarily indicative of a co-occurring or separate autism diagnosis.
The presentation of the autistic alter might be a result of various factors, such as:
Role-playing or imitation: Alters in DID can take on different roles, and one alter might imitate the behaviors of someone they know or have observed, including those associated with autism.
Coping mechanism: The autistic alter might represent a particular coping mechanism developed in response to specific traumas or life experiences.
Symbolism or representation: The autistic alter could symbolize certain aspects of the person's life or emotional state.
Internal fragmentation: The presence of an autistic alter could reflect internal fragmentation of the person's experiences and emotions.
It's essential to approach the understanding and treatment of DID with sensitivity, recognizing the complexities of the condition and the unique experiences of each alter. If a person with DID presents with an alter that seems to have autistic traits, it's crucial for mental health professionals to conduct a comprehensive assessment and explore the underlying reasons and dynamics at play.
In any case, appropriate treatment for DID should focus on fostering communication, understanding, and integration among the alters, and addressing the root causes of the dissociation and fragmentation that led to the development of the disorder.