In 1982, Josh Huang was an impressionable young biology undergraduate at Shanghaiʼs FuDan University. Like some of his fellow Chinese students, he knew he wanted to be a neuroscientist, but with limited access to scientific journals, had no idea which big questions were then at the forefront of research.

Gray matter, that mysterious brain substance, is thought to control everything from motor function to mental acuity. In recent years several studies have suggested that an excess of gray matter during childhood is to blame for the symptoms of autism.

A new ‘dyeʼ called Brainbow turns drab neurons in mouse brains into multi-colored impressionistic masterpieces.

Donald T. was not like other 5-year-old boys. Leo Kanner knew that the moment he read the 33-page letter from Donaldʼs father that described the boy in obsessive detail as “happiest when he was alone… drawing into a shell and living within himself… oblivious to everything around him.”

Having the flu during pregnancy can be unpleasant and exhausting. But can it affect fetal brain development and cause autism-like disorders? Intriguing new research says yes ― at least in mice.

Along with answering fundamental questions about mammalian brain organization, watching interneurons’ “handshake” with other brain cells is the key to understanding autism, says Gordon Fishell.