What's in a label? Everything, advocacy groups say. May 25, 2011— -- Eileen Parker was 41 years old when she discovered her quirky, misunderstood behavior had a name: Asperger's. The syndrome, ...

Readers weigh in on the challenges of defining and diagnosing the condition. To the Editor: Re “In New Focus on Autism, Some Worry the Spectrum Is Too Broad” (front page, Oct. 5): One thing’s for ...

For years, we've thought of autism as lying on a spectrum, but emerging evidence suggests that it comes in several distinct ...