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You are at:Home » Neuralink Plans to Test Whether Its Brain Implant Can Control a Robotic Arm
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Neuralink Plans to Test Whether Its Brain Implant Can Control a Robotic Arm

cycleBy cycleNovember 25, 202403 Mins Read
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Elon Musk’s brain implant company Neuralink announced on Tuesday that it is launching a study to test its implant for a new use: allowing a person to control a robotic arm using just their thoughts. “We’re excited to announce the approval and launch of a new feasibility trial to extend BCI control using the N1 implant to an investigational assistive robotic arm,” Neuralink said in a post on Musk’s social media platform X.

A BCI, or brain-computer interface, is a system that allows a person to directly control outside devices with their brain waves. It works by reading and decoding intended movement signals from neurons. Neuralink’s BCI involves a coin-sized device dubbed N1 that is surgically implanted in the brain by a robot. The company is currently evaluating the safety of its BCI, as well as its ability to control a computer in individuals with paralysis.

Moving a computer or prosthetic arm is not a new feat for BCIs. In 2008, a team led by Andrew Schwartz at the University of Pittsburgh showed that a monkey could control a robotic arm to feed itself using signals from its brain. After that, researchers moved on to human volunteers. In a 2012 study published in the journal Nature, two people paralyzed due to stroke were able to guide a robotic arm to reach and grasp objects simply by thinking about it. One was able to serve herself coffee for the first time in 14 years. In another study from 2016, a man with a BCI regained a sense of touch using a robotic arm.

The BCIs used in those studies were clunky setups that required running a cable from the research participants’ head to a computer that decodes brain signals. By contrast, Neuralink’s system is wireless.

On social media earlier this year, Neuralink demonstrated that its BCI can be used to control a computer cursor. In a video on X, study participant Noland Arbaugh was shown using the Neuralink device to play chess and other games on a computer. Arbaugh, who became a quadriplegic after a swimming accident in 2016, spoke with WIRED earlier this year about how the implant has given him a sense of independence.

Arbaugh underwent brain surgery in January to receive the Neuralink implant, but a few weeks later, the device started to malfunction. The implant has 64 thin, flexible wire threads that penetrate the brain tissue. Each thread contains 16 electrodes that collect neural signals. In a blog post from May, Neuralink said several threads had retracted from Arbaugh’s brain, causing him to temporarily lose cursor control. Neuralink was able to restore Arbaugh’s control by modifying its brain recording algorithm to be more sensitive and changing how it translates neural signals into cursor movements.



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