autistic adults more likely to experience hallucinations?

I've just come across a couple of articles in popular scientific journals that claim that autistic adults are three times more likely than allistic adults to experience hallucinations. This gives you a flavour:
https://neurodivergentinsights.com/hallucinations-and-autism/?srsltid=AfmBOoqWoWghLoQP1ZWb7x4fYgCXDAX9Ik4DU7G_oHxR0MgXm2TABIG5

This is by one of the researchers, back in 2017 when the research was published:
https://theconversation.com/autistic-people-are-three-times-more-likely-to-have-hallucinations-77337

I found this repeated within the health service when I googled and downloaded a document from Oxford NHS Trust as a typical example. It stated: Researchers have shown that people with Autism are up to 3 times more likely to have hallucinations. Often when people with autism hear voices, they are hearing their own thoughts spoken aloud in their head. And quoted the second article I linked to, which provided the link to the original research paper:
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0177804#sec002

Now, the scary thing for me is the number of autistic adults who were part of this study. It wasn't hundreds. It was 30, 7 of whom were women. Yet NHS trusts and articles in science=based media are circulating this without qualification. In my experience, basing 'facts' on one experiment involving only 23 men and 7 women would be regarded as dicey when applied to neurotypical adults. What do you think? Have you experienced such hallucinations? Is it common? 

I'll post the poster derived from the research in comments (as images and texts put a strain on the forum)

Parents
  • It seems like a very insubstantial hook to hang anything on. The sample size is very small indeed to enable confident extrapolation to large populations. Also, the reportage places the word 'hallucination' very prominently, but in the actual paper, hallucination forms a very small part of what are labelled 'anomalous perceptions'. For example, the 'hearing things more loudly' and 'smelling things others do not' components of anomalous perceptions, could merely reflect the higher sensitivity to certain stimuli that is a recognised aspect of autism. I hear and smell things that others do not, but my sensitivity is more acute than most, the sounds and odours exist, but other people notice them later than I do.

  • I am definitely highly sensitive in several ways, but I don't think that counts as a hallucination since what I'm experiencing is real, just heightened in intensity.

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