Could be the Aura Purification one.
Yes, it would. What they call autism is a very large spectrum of various syndromes, including those related to overstimulation consequences. Many people not diagnosed with the spectrum can still benefit from the field. Personally I do, because apparently I have some spectrum-like sensitivities in some contexts. However, it’s always better being careful about not overdosing (just like with many other fields, in sum).
You can check for example these posts written by Uial (which include comments from O Captain Dreamweaver):