Anxiety can assume unusual forms in people with autism — turning uncertainty, or even a striped couch, into a constant worry. New tools may help identify these hidden fears.

Scores of parents abandon mainstream autism treatments to pursue Son-Rise, an intense, expensive — and unproven — behavioral therapy.

Studies of infants at risk for autism have not yielded a test to predict who will eventually be diagnosed. But they have transformed our understanding of the condition.

The loss of abilities that besets some toddlers with autism is probably less sudden and more common than anyone thought.

Autism and schizophrenia share a long and tangled history. Comparing the social features of the two conditions could lead to better treatments and a deeper understanding of each.

After a decade of fast-paced discovery, researchers are racing toward bigger datasets, more genes and a deeper understanding of the biology of autism.

Children with autism are often clumsy, physically awkward or uncoordinated. This understudied and nearly ubiquitous feature has researchers contemplating a new idea: Could motor problems be one source of autism’s social difficulties?

Having autism as a parent might seem impossibly challenging. But a generation of parents with the condition is showing that it can be an advantage — even when their child does not share the diagnosis.

People with autism fall in love. They marry. They even (gasp) have sex. Yet these deeply human needs have mostly gone ignored by scientists.

Many people on the spectrum take multiple medications — which can lead to serious side effects and may not even be effective.