Communications of the ACM
High Schooler Invented Low-Cost, Mind-Controlled Prosthetic Arm
Benjamin Choi with the $300 arm prosthesis he designed.
Credit: Society for Science
Virginia high school senior Benjamin Choi designed a thought-controlled robotic arm, then three-dimensionally (3D) printed the first model in small pieces, and assembled it with bolts and rubber bands.
That model responded to brain wave data and head gestures.
Choi's latest iteration employs engineering-grade materials and an artificial intelligence (AI)-powered algorithm that interprets a user's brain waves.
The prosthesis only costs about $300 to fabricate.
It records the brain's electrical activity using forehead- and ear-worn sensors; the former picks up brain wave information that is transmitted to a microchip in the arm, while an AI model translates this data to predict the user's thoughts.
From Smithsonian
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