Strikingly, the right hemisphere of people with autism seems to respond earlier to sound than the left hemisphere, echoing the accelerated right-side maturation we saw in our study on mice.

Only 1 in 10 of us is left-handed, but lefties have an outsize role in the world. And then there's politics. Contributor: Is the best of all possible worlds left-handed?

For more than a century, the left hemisphere of the brain has been considered the center of language production and comprehension. This idea was first proposed in 1836 by Dr. Marc Dax, ...

In most people, speech and language live in the brain’s left hemisphere. Mora Leeb is not most people. When she was 9 months old, surgeons removed the left side of her brain.

What do Lebron James, David Bowie and Bill Gates all have in common? They're left-handed. While they're a minority of the population, they're not alone. So why are we right- or left-handed?

In most people, speech and language live in the brain's left hemisphere. Mora Leeb is not most people. When she was 9 months old, surgeons removed the left side of her brain. Yet at 15, Mora plays ...