This is one of four talks from the IMFAR 2012 symposium Anxiety in Autism Spectrum Disorders: From Biology to Treatment. The overall session theme: It’s clear that anxiety is a major problem for kids & adults on the autism spectrum. The onus on us to figure out how to treat it. Any errors or omissions in the summary below are on me. -SR Connor Puleo: Anxiety in Youth With and Without ASD: Commonalities and Variations What does anxiety look like in ASD and how good are we in measuring it? Are there things that seem to be different in terms of anxiety for children on the spectrum? How that might complicate measurement and methodology? Differential diagnosis in an ASD population is inherently challenging, there’s a lack of consensus how to go about it, and in terms of defining what is anxiety and what is ASD. What this means is that…