Newborns with either above- or below-average levels of an immune-system marker, among other differences, have increased odds of being autistic.

Autistic people have distinct patterns of brain development, which sometimes result in differences in brain structure. Here’s what we know about those differences.

A new telehealth test offers researchers a way to detect signs of atypical behavior from afar and could help more families participate in autism studies and clinical trials.

Extremely preterm babies later diagnosed with autism tend to show steep declines in development, a pattern that could flag them for intervention as early as 6 months of age.

Autistic men show a greater imbalance between excitatory and inhibitory signaling in the brain than autistic women do, which could explain sex differences in ‘camouflaging.’

Contrary to previous results, the blood pressure drug did not uniformly improve autism traits in a new clinical trial.

Conversations between an autistic and a typical person involve less smiling and more mismatched facial expressions than do interactions between two typical people.

About 6.5 percent of autistic people in the United States also have dyslipidemia, a condition characterized by abnormal lipids levels in the blood.

Like so many other events this year, autism’s biggest annual conference — the International Society for Autism Research meeting — was forced to go virtual because of the coronavirus pandemic.

Babies with telltale patterns of electrical activity in the brain have pronounced autism traits as toddlers.