Contracted functional connectivity profiles in autism.

The sample included only male participants because the dataset had few females, so it does not describe females with autism. The authors say the results need validation in independent large-scale datasets. The dataset came from three sites with different scanners and protocols, and ADOS scores differed by site, so generalizability may be limited. The measure averages connection distance per brain region, so it does not show exactly how short and long connections are distributed. The study did not examine comorbidities such as ADHD or other conditions with similar symptoms. It compared groups rather than identifying autism subtypes, so it may not apply to every person with autism. The authors note the findings may not be specific to autism and need testing against other neurodevelopmental conditions.

Funding came from the Max Planck Institute, National Science and Engineering Research Council of Canada, Canadian Institutes of Health Research, SickKids Foundation, Azrieli Center for Autism Research, BrainCanada Future-Leaders, and Tier-2 Canada Research Chairs. The article does not state author competing interests or sponsor role in design or writing.

Do not read this as a clinical test for autism or a reason to change therapy. The finding was a group-level brain imaging result in male participants, it did not track symptom severity, and the IQ association was a correlation.