Spinal cord injury patients can imagine resuming many activities because of new technologies (washingtonpost)

As Aldana thinks about opening and closing his hand, engineers “hijack” this signal from his brain. They reprogrammed a robotic walking system to read that signal as an initiation of steps, allowing Aldana to walk for the first time since his accident. They hope to expand this work further. (Robert Camarena/University of Miami-Miami Project)

At age 16, German Aldana  snaped his spine just below his neck. For the next five years, he could move only his neck, and his arms a little. Researchers with the Miami Project to Cure Paralysis carefully opened Aldana's skull and, at the surface of the brain, implanted electrodes. Then, in the lab, they trained a computer to interpret the pattern of signals from those electrodes as he imagines opening and closing his hand. The computer then transfers the signal to a prosthetic on Aldana's forearm, which then stimulates the appropriate muscles to cause his hand to close. The entire process takes 400 milliseconds from thought to grasp.

#BCI #Augmentation #Biology