Can Aspergers account for OCD traits in the absence of OCD as a separate diagnosis? I'm just curious because OCD has been frequently referrenced in regards to certain traits of mine and yet if I mention the possibility of OCD around professionals, they simply give me this look and never look into it.
Autism, ADHD, and OCD may occur together. The reason for this is that there is an area of the brain called the anterior cingulate cortex (ACC), the "switchboard" that regulates several areas of the brain, and it's this area of the brain that is affected in all three. If you have one of these diagnosis, then you're likely to have, more or less, some symptoms of the other two. Obviously, this is individualized. One diagnosis may stand out as the primary.
The ACC uses serotonin as the primary neurotransmitter and uses the 5-HT2A receptors, which are generally "excitatory". Many autistics will have a lower density of 5-HT2A receptors in the ACC than non-autistics, furthermore, there can be genetic abnormalities in the genes responsible for serotonin binding and transport. The end result is that there can be a significantly lower level of serotonin activity within the ACC than non-autistics.
There are medications called selective serotonin reuptake inhibitors (SSRIs). These work on the 5-HT1A receptors. The 1A receptors are often found in those other areas of the brain controlled by the ACC, and tend to be "inhibitory". SSRIs, as their name implies, blocks the reuptake of serotonin, allowing serotonin to remain present longer. SSRIs may help some folks with their symptoms, but really doesn't address the underlying issue, that is the limited binding and transport of serotonin in the ACC, and as a result, may have limited effect for autistics.
However, within the context of autism, if there is low levels of serotonin activity in the ACC, then the downstream regions of the brain controlled by the ACC are not going to operate normally, and may result in ADHD, OCD, depression, anxiety, and their other common symptoms. Utilize another medication that acts like serotonin and has a higher affinity for the 2A receptors in the ACC (like psilocybin/psilocin), allowing the ACC "switchboard" to operate normally, then those symptoms are likely to be relieved.
Autism and ADHD Symptoms in Patients with OCD: Are They Associated with Specific OC Symptom Dimensions or OC Symptom Severity? - PMC
The ‘PSILAUT’ protocol: an experimental medicine study of autistic differences in the function of brain serotonin targets of psilocybin - BMC Psychiatry.