Artificial intelligence and robotic exoskeletons are giving a man who was paralyzed from the neck down hope of walking again, in a case doctors say underlines how quickly neurorehabilitation technology is advancing, as the BBC reported.
Dan Richards, 37, from Swansea, broke his neck when a wave flipped him onto the sand back in 2023. After emergency treatment in Bristol, doctors told him he was paralyzed from the neck down and was highly likely to remain bedbound.
In the months that followed, Richards began to notice slight movement in his toes, followed by the return of feeling in his legs and feet, some movement in his right leg, and improved core strength that doctors had initially ruled out.
After his discharge, Richards began intensive physiotherapy, during which a neurophysiotherapist placed him in a robotic gait trainer connected to an AI-driven stimulation suit. This robot guides his legs through a walking cycle while the suit, equipped with sensors and electrodes, delivers electrical pulses to his leg muscles at precisely timed moments, with an algorithm that adjusts this stimulation in real time based on his movement signals, teaching his body a more natural walking pattern and enabling him to take supported steps inside the machine.
He later took part in a program built around a Hybrid Assistive Limb suit, a powered exoskeleton that reads signals from his brain or nerves and turns them into assisted leg movements, combined with stem cell injections into his spinal cord.
Clinicians say the system is designed so that, as those signals strengthen with repeated training, patients can walk faster and with less mechanical help and may eventually be able to walk without the suit.
AI Offers New Hope After Brain-Chip ‘Telepathy’ Trials
The system used in Richards’ care is part of a broader push to connect brains directly to computers.
In the United States, 30-year-old Noland Arbaugh from Arizona became the first participant in a trial by Elon Musk’s neurotechnology company Neuralink in January 2024, eight years after a diving accident left him paralyzed below the shoulders.
Arbaugh received an implant in his skull that links to brain regions involved in movement. The device is a brain-computer interface that detects the faint electrical activity generated when a person imagines moving and converts those signals into computer commands, such as moving a cursor on a screen.
Since surgery, Arbaugh has learned to control a cursor and play chess and other games using only his thoughts, and now uses the implant to browse the web, chat with friends, and carry out everyday computer tasks.
Brain Implants Gain Generative AI Support
In addition to Arbaugh, last November, Bradford G. Smith became the third person to receive a Neuralink brain implant and the first participant with ALS who is nonverbal.
The device, a cluster of fine electrodes connected to a coin-sized computer embedded in his skull, picks up activity from neurons involved in movement and sends those signals wirelessly to his laptop. That link allows him to move a cursor across a screen using only his thoughts and to treat the implant as his main way of communicating online.
Smith can control the pointer well enough to text people, answer questions on X, and write emails, but every letter still takes effort and time. To speed up that process, he has started using Grok, Elon Musk’s generative AI chatbot, as a writing partner.
Smith keeps notes on his condition and experiences, then asks Grok to turn those notes into full answers to questions he receives. He reviews, edits, and approves the suggested text using his brain-controlled cursor before posting it, saying he remains responsible for what appears under his name even if AI helped draft it.
His setup also includes synthetic voice software that reads his written words aloud in a reproduction of his pre-illness voice, and Neuralink engineers are testing language models that can display sets of suggested replies or comments that match the surrounding conversation, allowing him to select one option with a single brain “click.”
Beyond Skynet Fears, a More Practical Face of AI
Taken together, the cases of Richards, Arbaugh, and Smith point to a side of artificial intelligence that is far from science fiction nightmares or debates about job losses.
In neurorehabilitation and assistive medicine, AI systems are being built into robots, exoskeletons, and brain implants to restore basic functions that injury and disease have taken away, whether that means the chance to stand and take supported steps or the ability to write a message, hold a conversation, and be heard in a familiar voice.
For now, the technology remains experimental and raises serious questions about safety and data protection, but clinicians and experts say the early trials show how machine learning and brain-computer interfaces can act as assistive tools rather than threats.
For patients with paralysis or advanced neurological disease, AI-supported devices are not abstract science but part of the effort to regain movement, independence, and control over everyday life.
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