Keith Thomas, a resident of New York, suffered a spinal injury to his C4 and C5 vertebrae in a car accident in 2020, resulting in complete loss of feeling and movement from the chest downwards.
However, recent advancements in AI brain implant technology developed by Northwell Health’s Feinstein Institute of Bioelectronic Medicine have allowed Thomas to regain control of his arm and experience the sensation of his sister holding his hand.
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The research team began by extensively mapping Thomas’s brain using MRI scans to identify the specific regions responsible for arm movements and tactile perception in his hands.
Four months ago, surgeons conducted a 15-hour procedure to implant microchips into Thomas’s brain, during which he was even conscious to provide feedback on the sensations he experienced as they probed different areas of the organ.
In addition to the internal microchips, external ports were installed on Thomas’s head to connect to a computer equipped with artificial intelligence algorithms developed by the research team. This innovative approach, known as “thought-driven therapy,” relies on the patient’s intentions.
When Thomas thinks about moving his hand, signals from the brain implant are transmitted to the computer, which then sends corresponding signals to electrode patches placed on his spine and hand muscles, causing them to stimulate movement. To enhance his sensory perception, sensors were also attached to his fingertips and palms.
Thanks to this groundbreaking system, Thomas has successfully moved his arm voluntarily and felt the touch of his sister’s hand in the laboratory. While he still needs to be connected to the computer for these milestones, the researchers have observed signs of recovery even when the system is not in use.
Since the study began, Thomas’s arm strength has reportedly more than doubled, and he can now experience new sensations in his forearm and wrist. If all progresses as expected, the thought-driven therapy developed by the research team could significantly improve Thomas’s sense of touch and mobility.
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Although further advancements are still required, the team remains optimistic that this approach could revolutionize the lives of individuals living with paralysis.
Chad Bouton, the developer of this technology and the principal investigator of the clinical trial, expressed, “This marks the first instance of electronically connecting the brain, body, and spinal cord in a paralyzed individual to restore lasting movement and sensation. When the study participant envisions moving his arm or hand, we amplify the capabilities of his spinal cord and stimulate his brain and muscles, facilitating the reestablishment of connections, providing sensory feedback, and promoting recovery. This thought-driven therapy has the potential to revolutionize the field. Our ultimate objective is to employ this technology to empower individuals living with paralysis to lead fuller, more independent lives.”
