Brain-controlled prosthetics and computers may help paralyzed people in the future:
Scheuermann, who says that in her dreams she is not disabled, underwent brain surgery in 2012 after seeing a video of another paralyzed patient controlling a robotic arm with his thoughts. She immediately applied to join the study. During the surgery, doctors used an air gun to fire the two tiny beds of silicon needles, called the Utah Electrode Array, into her motor cortex, the slim strip of brain that runs over the top of the head to the jaws and controls voluntary movement. She awoke from the surgery with a pounding headache and “the worst case of buyer’s remorse.” She couldn’t believe she’d had voluntary brain surgery. “I thought, Please, God, don’t let this be for nothing. My greatest fear was that it wouldn’t work,” she says. But within days, she was controlling the robotic arm, and with unexpected success: “I was moving something in my environment for the first time in years. It was gasp-inducing and exciting. The researchers couldn’t wipe the smile off their faces for weeks either.”
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