Brain-machine interface helped a man with paralysis feed himself using robotic arms

People with arm paralysis might easily feed themselves in the future. Johns Hopkins University-led researchers have developed a new technique that let a partially paralyzed man feed himself using robotic arms connected through a brain-machine interface. He only had to make small movements with his fists at certain prompts (such as “select cut location”) to have the fork- and knife-equipped arms cut food and bring it to his mouth. He could have dessert within 90 seconds, according to the researchers.

The new method centers on a shared control system that minimizes the amount of mental input required to complete a task. He could map his four-degree freedom of movement

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