It's been a long time since Alice Charton got a good look at a human face. There are plenty of people moving through her world, of course—her husband, her friends, her doctors, her neighbors—but ...

In January 2024, the company implanted its first chip, into the brain of Noland Arbaugh, a 29-year-old Yuma, Ariz., quadriplegia patient who lost movement below the shoulders in a diving accident. The ...