A paralysed man, Keith Thomas, has regained movement and feeling in his hands in what researchers claim is a world‑first use of a brain‑implant system, according to a paper published in Nature Medicine.

The team, led by Chad Bouton at the Feinstein Institutes for Medical Research, implanted five microelectrode arrays during a 15‑hour surgery and paired them with a machine‑learning algorithm and skin‑worn stimulators. Over 35 weeks, Thomas increased right‑arm strength by 86% and left‑arm strength by 62%, enabling him to feed himself, scratch his nose and wipe his mouth. He also grasped hollow eggshells without breaking them 87% of the time, demonstrating restored touch perception.

Experts praised the bidirectional approach. Letizia Gionfrida of King’s College London called the restoration of both movement and sensory feedback “novel and particularly important,” while David Mc Gonigle of Cardiff University noted the motor gains were “particularly impressive” though the study involved a single participant.

The researchers say the double neural bypass not only bypasses the injury but also promotes neuroplasticity, offering hope for millions with spinal‑cord injuries, though further work is needed to confirm long‑term adaptation.