A new microscope creates images of a mouse embryo as it grows from a ball of about 100 cells into a structure with a primitive heart and brain.

Children who have repetitive behaviors, a core autism trait, may show particular patterns of brain activity as early as 1 year of age.

Autistic children aged 2 to 4 have about 15 percent more fluid between their skull and their brain than their typical peers do.

Administering a cholesterol drug alongside an antibiotic eases atypical behavior and restores the signaling balance in the brains of people with fragile X syndrome.

A new technique transforms the previous broad-brush picture of a brain region into a pointillist masterpiece of neuronal subpopulations associated with specific activities.

A tiny fraction of the connections between brain regions can identify an individual.

An inexpensive, noninvasive method can track social brain development in infants in low-resource countries.

Specialized neurons called chandelier cells, which dampen brain signals, make unusually few connections in the brains of people with autism.

Brain activity governing language can distinguish children with autism into distinct subgroups.