Children with autism are more likely to have both sleep problems and constipation than would be expected based on the prevalence of each of those conditions.

The number of children diagnosed with attention deficit hyperactivity disorder (ADHD) has reached more than 10 percent, a significant increase during the past 20 years, according to a new study.

Many autism researchers express satisfaction with the similarities between the ICD-11 and the DSM-5. But some have raised concerns about ways in which the two diagnostic manuals appear to diverge.

How researchers design autism prevalence studies has a significant impact on the results, says Eric Fombonne.

The international manual of conditions now includes a diagnostic code for Angelman syndrome — which may enable scientists to systematically collect information about the syndrome.

Machine-learning holds the promise to help clinicians spot autism sooner, but technical and ethical obstacles remain.

From an app to diagnose autism to a crowdsourced project to map its prevalence, Dennis Wall is brimming with ambitious ideas. But his execution of these ideas leaves something to be desired, his critics say.

The California-based company’s phone application for autism diagnosis is not as far along as initial reports suggested.

The instruments clinicians use to diagnose depression in people with autism cannot capture its unique presentation in this group.

Two new parent questionnaires could help clinicians identify autism in babies and in members of racial or ethnic minority groups.