Scientists have uncovered evidence that autism may include at least two biologically distinct subtypes, each marked by a different pattern of brain communication. By combining brain scans from nearly ...

A new study found two recurring brain connectivity patterns in autism. One was linked to synapses and the other to immune ...

When Marc and Cristina Easton’s son was diagnosed with autism at 20 months, the Baltimore couple left the doctor’s appointment in confusion. Their toddler – who was very social – didn’t resemble the ...

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 ...