Here is a roundup of news and research for the week of 30 December.
From funding decisions to scientific fraud, a wide range of societal factors shape autism research.
Here are seven Spectrum stories from this year that deserve a close look.
An award-winning photography series offers a close look at one autistic person coming of age in New York City.
The first rigorous estimate of autism in Catalonia, Spain, has found a prevalence on par with that in the United States; an independent study in Iran, meanwhile, has found a prevalence that lags far behind.
The American Academy of Pediatrics has, for the first time in 12 years, overhauled its recommendations for identifying and supporting autistic children.