Manipulating pathways that help silence the X chromosome may help treat Rett syndrome, a condition closely related to autism.

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.

Injecting tiny pieces of RNA into the brain may someday serve as a therapy for certain forms of autism.

The effects of autism mutations on brain volume might be reversible, even in a mature brain.

Monkeys with multiple copies of the gene MeCP2 have irregular brain waves similar to those seen in some children with autism.

Lowering the levels of OTX2, a protein found in the fluid that bathes the brain, prevents many abnormal behaviors in mouse models of Rett syndrome.

An imaging technique that lights up cells without involving fluorescent markers lets scientists see deep inside spheres of neurons.