Researchers at the University of Utah have begun the first at-home trial of a thought-controlled bionic arm that can also restore a sense of touch — a milestone that brings one of science fiction's most famous prosthetics a step closer to everyday reality.
The neuroprosthetic, inspired by the robotic arm of Luke Skywalker in the Star Wars films, is being tested by Alexander "Avi" Davidson, who lost his left arm in an accident as a teenager. The trial marks the first time the device has been used outside a laboratory setting.
How the arm works
The system relies on a direct nerve interface called the BIOS Controller. Davidson can command the prosthetic using his thoughts, and — critically — the device feeds sensory information back to him, allowing him to feel pressure and texture rather than merely moving a mechanical limb.
Within days of starting the trial, he was able to write, play cards, prepare food and even sense the pressure of holding his wife's hand, according to the university team.
Why touch matters
Most advanced prosthetics available today focus on motor control — opening and closing a hand, rotating a wrist. Restoring sensation has long been the harder problem, and engineers say it is essential for the fine control that everyday tasks demand: judging how firmly to grip a glass, or feeling for an object without looking at it.
The at-home setting is itself a key part of the experiment. Laboratories are controlled environments; researchers want to see how the device performs across the unpredictable rhythms of daily life — cooking, cleaning, commuting — and how the nerve interface holds up over extended, continuous use.
The road ahead
The trial is still at an early stage, and there is no timeline yet for wider clinical availability or commercialisation. Safety, durability and cost will all have to be established before the technology can reach the millions of people worldwide who live with upper-limb loss.
But for Davidson, the immediate change is already profound: a prosthetic arm that does not just move when he thinks, but lets him feel again.
Sources: Mid-day: Thought-controlled bionic arm enters first home trial
The neuroprosthetic, inspired by the robotic arm of Luke Skywalker in the Star Wars films, is being tested by Alexander "Avi" Davidson, who lost his left arm in an accident as a teenager. The trial marks the first time the device has been used outside a laboratory setting.
How the arm works
The system relies on a direct nerve interface called the BIOS Controller. Davidson can command the prosthetic using his thoughts, and — critically — the device feeds sensory information back to him, allowing him to feel pressure and texture rather than merely moving a mechanical limb.
Within days of starting the trial, he was able to write, play cards, prepare food and even sense the pressure of holding his wife's hand, according to the university team.
Why touch matters
Most advanced prosthetics available today focus on motor control — opening and closing a hand, rotating a wrist. Restoring sensation has long been the harder problem, and engineers say it is essential for the fine control that everyday tasks demand: judging how firmly to grip a glass, or feeling for an object without looking at it.
The at-home setting is itself a key part of the experiment. Laboratories are controlled environments; researchers want to see how the device performs across the unpredictable rhythms of daily life — cooking, cleaning, commuting — and how the nerve interface holds up over extended, continuous use.
The road ahead
The trial is still at an early stage, and there is no timeline yet for wider clinical availability or commercialisation. Safety, durability and cost will all have to be established before the technology can reach the millions of people worldwide who live with upper-limb loss.
But for Davidson, the immediate change is already profound: a prosthetic arm that does not just move when he thinks, but lets him feel again.
Sources: Mid-day: Thought-controlled bionic arm enters first home trial
