Problems with protein-filled parcels called exosomes may contribute to Rett syndrome, a condition related to autism.

Alysson Muotri aims to build a ‘thinking’ brain as a model for autism — even if his colleagues consider that work controversial.

Brain tissues from people with autism of unknown cause and from people with either of two genetic forms of the condition all show similar patterns of methyl groups on DNA.

A new technique may reveal how mutations on the X chromosome alter various types of cells in the brain.

Nearly one in four men who have a daughter with Rett syndrome carry mutations linked to the condition in some of their sperm.

Stimulating the vagus nerve may normalize the brain response to sound in a rat model of Rett syndrome. It may also improve rats’ behavioral response to certain speech sounds.

Scientists used the gene-editing tool CRISPR to create two marmosets lacking MECP2, the gene mutated in Rett syndrome.

A new line of female mice may enable researchers to test gene-based therapies for Rett syndrome.

New evidence links autism and cerebral palsy at the genetic level, facial expressions tend to mislead, and many health conditions accompany autism.