You can watch Dr. Sanjay Gupta’s full report, plus his answers to your questions about this, on Erin Burnett OutFront tonight at 7pmET.
CNN —
Staring at a computer screen, Mark focuses deeply, his arms resting by his side. His right index finger trembles ever so slightly on top of a pillow, and then an alert rings out from the screen in front of him, a message to a caregiver that he needs assistance.
Without ever clicking a mouse or touching a screen, Mark selected this command on his computer simply using signals from his brain. Mark,
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