> All autistic participants in the study had average or above average cognitive abilities. McPartland and collaborators are also working together on developing other approaches to PET scans that will enable them to include individuals with intellectual disabilities in future studies.

Simply put they didn't even touch the keeners, nonverbalists, the piss-in-your-pants, or the perpetual 1 year old autistics. They went after people who previously would be called "Aspergers syndrome".

But everything cognitive seems to be called 'autism spectrum disorder' these days.

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Zak 6 hours ago | parent [-]

Of course they didn't. It would be unethical to perform non-medically-necessary PET scans on people who are unable to give informed consent due to the radiation exposure.

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mystraline 4 hours ago | parent [-]

First, 1 PET scan is around 25mSv. 50mSv is yearly limit for radiation workers. And those are being overly safe to allow accidental overage. 100mSv is start of detectable cancer risk. So the risk for 1 scan is basically 0.

Secondly, someone has medical power of attorney over the non-functional autistics. And in reality, they are the ones at most need of (almost passive) study to help them. Us high functioning autistics dont need anywhere near the help.. And we have no way to know an Aspergers and traditional autism are even similar, other than the spectrum brigade keeps adding more and more under 'autism'.

Simply put, guardian says yes to do a single scan a year, and I see no problem with it. More than 1 a year, and we start getting into potential damage. Maybe with some pie-in-the-sky-IRB whatif situation, sure. But 1 scan/yr has no demonstrable damage.

	▲	Zak 3 hours ago \| parent [-]
		I imagine it was a lot easier to get this version where the study participants can consent for themselves past an ethics panel. Now that there's a result suggesting something of value might be learned, there's a stronger argument for studies with greater ethical risk.