Researchers at UC San Francisco have made a groundbreaking discovery in brain-computer interfaces (BCIs), enabling a paralyzed man to control a robotic arm with unprecedented success. The breakthrough device, which relies on artificial intelligence (AI) and tiny sensors implanted on the brain’s surface, allows the user to grasp, move, and drop objects by simply imagining themselves performing the actions.
The BCI worked for an astonishing seven months without needing adjustments, far exceeding previous records of just a day or two. By analyzing brain activity patterns, researchers discovered that small changes occur in the brain as users repeat movements, allowing the AI model to adjust and refine its function.
In the study, a paralyzed participant was able to control a robotic arm with remarkable precision, performing tasks such as picking up blocks, turning them, and moving them to new locations. The device’s success led researchers to refine the AI models, aiming to improve speed and smoothness in the future.
The implications of this technology are life-changing for people with paralysis, enabling abilities such as feeding themselves or accessing essential resources like water. With further testing planned in a home environment, this breakthrough brings hope to those living with paralysis.
Source: https://www.ucsf.edu/news/2025/03/429561/how-paralyzed-man-moved-robotic-arm-his-thoughts