Infants with low levels of the hormone vasopressin in their cerebrospinal fluid may be more likely to later be diagnosed with autism.

A drug that mimics the hormone vasopressin improves social skills in autistic people — but so does one that blocks vasopressin’s effects. How can seemingly opposing manipulations produce similar results?

Two drugs that alter the activity of the hormone vasopressin seem to improve social communication in autistic people, but some experts question the findings.

Children with autism tend to have low levels of the hormone vasopressin in their brain, according to the largest study yet to look at the levels.

Benefits of diets for autism features remain unproven, variants of the same DNA region make brains big or small, and STAT announces a new CRISPR tracker.

Male monkeys that avoid touching, grooming or playing with others have low brain levels of the hormone vasopressin.

Brain waves in infancy forecast autism, people with more autism features have trouble detecting lies, and veterinarians battle claims that vaccines cause autism in dogs.

The U.S. Food and Drug Administration has granted a rare ‘breakthrough therapy’ designation for a drug that may ease some features of autism.

The hormones oxytocin and vasopressin promote social interactions in male monkeys but make female monkeys more aggressive than usual.

Prairie vole pups exposed to the antidepressant fluoxetine in the womb show autism-like behaviors and lose some receptors for oxytocin and vasopressin.