Do genetic differences or diagnostic biases account for the gender imbalance in autism? Catherine Lord, David Skuse and Angelica Ronald weigh in.

What evidence supports the idea that autism stems from overactive brain responses to sensory input? Researchers weigh in on this controversial theory.

A new research network aims to study autism’s least-understood population: those with the most severe forms of the disorder. Three experts weigh in on the project’s potential impact.