[tiberriver256]

16 "autistic brains" were scanned and they are thinking this applies generally to all people with autism?

Shows how shockingly unaware even researchers are on how broad and nonspecific the diagnosis of autism is...

Were these 16 people hypo or hyper sensitive? Which of their five senses were involved? All? Some? Were some senses hyper and others hypo?

Need to start with categorization and specificity before we can make meaningful progress in research

[SubiculumCode]

I have not read the paper as I am traveling, but just in case your opinion is based on the news article, let's not confuse that reporting with the actual research.claims or the actual views held by the scientists involved. This was likely a paper demonstrating the technique in preparation of a more comprehensive study.

[tiberriver256]

The full paper isn't open so I can only read the abstract, method and results.

The part I take issue with: "lower brain-wide mGlu5 availability may represent a molecular mechanism underlying altered excitatory neurotransmission that has the potential to stratify the heterogeneous autism phenotype."

Seems like the very premise is flawed, though. Searching for a single global identifier for autism would be like if we spent research time trying to find a single global identifier for cancer. Noble effort... Way harder than spending effort on subcategorization into "lung" and "heart" cancers and working on research for detection of those subtypes.

The only good categorization we have in autism now is severity.

The anecdote I always like to share is Temple Grandin.

She was hyper-sensitive to auditory and tactile senses. The cause for this hypersensitivity was cerebellar abnormalities in her brain. Right now, someone who is hypo-sensitive to sound and touch because of different cerebellar development will also be put in the same bucket diagnostically speaking. There's not gonna be any universal way to detect that though...

To quote her directly:

"It would be my number one research priority, but one of the problems we’ve got on studying this, is that one person may have visual sensitivity, another one touch sensitivities, another one, auditory sensitivities. And when you study these, you got to separate them out. You can’t just mix them all together." https://www.sensoryfriendly.net/podcast/understanding-my-aut...

[SubiculumCode]

I would say that as an autism researcher whose focus is in finding autism subgroups that I doubt that any specific receptor differences will not apply to the whole spectrum, probably just to one or several subsets

[tiberriver256]

So glad to hear research is being done in that area.

I'm a dad of two autistic boys who I think would be very different categories. I have friends whose child isn't really autistic, they have a much more rare and specific diagnosis but it's so rare it's hard to get supports so they got him diagnosed as autistic because that criteria is so broad almost anyone can qualify.

Thank you for your work!