HOW AUTISM CAN INTERACT WITH A COMPLEX DISSOCIATIVE DISORDER
higher rates of introjection - this is something commonly spoken about in the online CDD community, meaning it is a shared experience even if there is little proper medical research on the topic. however, it has been observed that some autistic pwCDDs have more introject alters (specifically fictional introjects - sometimes called 'fictives') than their allistic counterparts. this may be due to hyperfixation on fictional media, or splitting alters sourced from special interests.
splitting due to overwhelm - meltdowns, shutdowns and other reactions to overstimulation in autistic people can lead to splitting new parts, as these situations can be highly stressful.
autistic traits differing per alter - since autism is a neurodevelopmental disability that affects the entire brain, every alter will have some variation of ASD. however, different alters may struggle with/experience different autistic traits! where one alter may struggle more with, say, language and communication skills, another alter may be more proficient in that area. however, the second alter may then struggle instead with a compulsive need for strict, unbroken routines. this is how the spectrum can present differently in different alters.
unpredictable social situations and the stress of social interaction can cause more switching - as social situations can be more stressful for autistics than our allistic counterparts, it should be noted that these can be triggers for rapid switching! we may rapid switch in order to find a part that is best suited to handle the situation, which can end in switching multiple times as a lot of autistic people struggle to cope in uncomfortable social situations, such as at school/work, during conflicts, or at events. (written with input from @kityenok; thank you!)
semi-verbality, verbal shutdown and abilities to communicate varying per alter - in autistics with variable ability to communicate, the proficiency at communication can vary between alters! in semi-verbal/semi-speaking pwCDDs, some alters may have a few more words than others, while others struggle more than the rest of the system. in autistics with frequent verbal shutdowns, there may be alters who rarely if ever experience speech loss, while there are others who are permanently in a state of verbal shutdown. the ability to communicate non-verbally (using body language, signing, or even using assistive technology and speech-to-text) can fluctuate, with certain alters being less effective at using these methods than others. (note: from what i have heard from non-verbal/non-speaking pwCDDs, all alters tend to lack mouth words. if this is inaccurate to your experience, feel free to share!)
of course, there are more ways that autism can influence and interact with alters in CDDs! if you would like to add to this list, feel free to do so. ^^
