The Brain

Families of children with mutations in a gene called SYNGAP1 have spurred research into the effects of the mutations on people — and how to treat them.

A novel cell culture device enables researchers to grow bundles of nerve fibers from stem cells, mimicking the tissue that connects distant parts of the brain.

Mice that lack a segment of chromosome 22 — a mutation associated with autism — have unusually sparse connections between brain regions.

A new method restores blood flow and some functions in pig brains four hours after the animals have died.

Mice colonized with gut microbes from some autistic boys show behaviors like those of the boys.

An array of minute beads enables researchers to build precise maps of gene expression in the brain.