New artificial intelligence software can decode conversations between small monkeys called marmosets.

A test designed to capture the dynamic back-and-forth of conversation suggests the existence of a new language area in the brain.

A drug that has shown promise for treating fragile X syndrome may ease features of another condition associated with autism.

Adults who have autism speak with unusual emphases and tone, but their speech still conveys the intended emotions.

Baby marmosets learn to vocalize by mimicking their parents, which helps to establish their utility for studying autism.

Monkeys with a mutation in the Rett syndrome gene, MeCP2, have social difficulties and repetitive behaviors.

The absence of an autism-linked gene, combined with exposure to a mock infection, produces social deficits in mice — but only in males.

Researchers have traced an unusual maternal behavior in female mice modeling Rett syndrome to a neural circuit that processes sound. They have also found a drug that reverses this behavior.

Teaching parents of toddlers with autism how to respond to their children may result in long-term improvements in these children’s autism features.

Tiny monkeys sporting even tinier backpacks are helping scientists understand the nuances of language and social behavior.