Ear, nose and throat/otolaryngology
Associations between autistic traits and early ear and upper respiratory signs: a prospective observational study of the Avon Longitudinal Study of Parents and Children (ALSPAC) geographically defined childhood population
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A major limitation of this article is that it does address relevant previous literature. For half a century I have been publishing in major journals the hypothesis that autism is a variant peripheral audiovestibular disorder. There is no upper limit to the IQ in autism, which alone should sink any primary brain damage hypothesis. As noted by Grandin , who admits to having Meniere's disease, you only have to look around Silicon Valley.
In retrospect, I now place less emphasis on otitis media, and more on inner ear changes known to accompany it, specifically endolymphatic hydrops. I have carefully reviewed the literature on audiosensitivity ("hyperacusis"), prominent in autism and Meniere's disease, and cannot find any other cause for it other than hydrops.