Every four years at the Cybathlon, teams of researchers and technology “pilots” compete to see whose brain-computer interface holds the most promise. Owen Collumb, a Cybathlon race pilot who has been ...

When you hear "brain-computer interface," you probably picture surgery, wires and a chip in your head. Now picture something quieter. No implant. No incision. Just sound waves directed at the brain.

People who have lost the ability to move or speak may soon have a new option: surgically implanted devices that link the brain to a computer. More than two decades after researchers first demonstrated ...