Mind Over Matter: Monkey Feeds Itself Using Its Brain

A monkey has fed itself with fluid, well-controlled movements of a human-like robotic arm by using only signals from its brain, researchers report. Use of the robotic arm, complete with working joints, is directly controlled by the monkey, a significant advance that could benefit prosthetics for people with paralysis and spinal cord injuries, particularly those with "locked-in" conditions such as Lou Gehrig's disease, amyotrophic lateral sclerosis.

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