The approach, tested in mice, selectively boosts the expression of the autism-linked gene SCN1A in a subgroup of inhibitory cells.

Mutations in all three accelerate the maturation of inhibitory neurons, which could upset the brain’s balance of excitation and inhibition early in development.

Jolting a bundle of nerve fibers deep in the brain restores learning and memory in mice with mutations of the autism-linked gene CDKL5.

Mice exposed to unusually low levels of the placental hormone allopregnanolone in the womb show atypical brain development and autism-like behaviors.

A transplant of inhibitory neurons during the second week of life prevents social difficulties and a brain signaling imbalance in mice missing a copy of FOXG1.

Worms and zebrafish missing both copies of the gene CHD7 have disrupted cellular signaling, a dearth of inhibitory neurons and behavior changes — all of which are reversed by the stimulant drug ephedrine.

A test of binocular rivalry may distinguish between autism subtypes and help researchers screen the efficacy of certain drugs.

Blocking connections between the amygdala and hypothalamus prevents mice from finding social interactions as rewarding as they would otherwise.

Some neurons activate autism-linked genes when they fire, according to a new study.

Children with dup15q syndrome may have telltale patterns of brain activity during sleep and get less non-REM sleep than neurotypical children do.