@alice @actuallyautistic There's also the Monotropism Questionnaire (MQ), still very much a research project. https://osf.io/preprints/osf/ft73y Monotropism has been mentioned elsewhere in the thread by @rabia_elizabeth. @ferrous' parent was one of the original authors of the idea and Ferrous helps keep the idea alive. (I don't know if the Murray, A who co-wrote the MQ paper is related.) https://monotropism.org/ Might I also suggest using the word "co-occurring" instead of "comorbid", and "trait" instead of "symptom". https://www.liebertpub.com/doi/10.1089/aut.2020.0014