Four large studies published since May arrive at various conclusions about whether exposure to antidepressants in the womb ups autism risk.

Taking prenatal multivitamins may reduce the risk of having a child who has autism with intellectual disability, another vaccine-autism link study is being retracted, and schizophrenia sometimes accompanies autism.

A re-analysis of data yields an increased estimate for the genetic contribution to autism, how the environment might contribute to autism is hard to pin down, and students on the spectrum describe the benefits of using technology at school.

Children who have an older sister with autism are more likely to also have the condition than those who have an older brother on the spectrum.

Two studies back the link between autism and maternal inflammation, other work weakens worry about antidepressant use in pregnancy, and a harassment scandal rocks a university’s cognitive science department.

Only about 0.1 percent of children in the Western Cape province of South Africa have autism, according to a review of school records.

Some drugs used to treat epilepsy may harm children who are exposed to them in the womb or through breast milk.

Masculinized features help define children with autism, online autism-parent forums spread pseudoscience, and the United States has more older fathers than ever.

Some variants in mitochondrial DNA are more common than others in autism, cognitive therapy reduces anxiety for people on the spectrum, and maternal fever in the third trimester is tied to autism risk.

People with autism aren’t easily surprised, the social camouflage some girls and women with autism use may preclude diagnosis, and autism-related genes are rooted deep in human ancestry.