Implants that create a digital connection between the brain and spinal cord have successfully restored movement in a paralyzed individual, offering hope for transforming the lives of people with paralysis. Scientists from the Swiss Federal Institute of Technology Lausanne (EPFL) led the research, which involved a 40-year-old man named Gert-Jan who had been paralyzed in a biking accident over a decade ago.
By implanting devices above Gert-Jan's brain and in his spinal cord, the researchers established a wireless link between his brain and body, bypassing the damaged section of his spinal cord. Over time, the implants restored damaged connectivity in his central nervous system, allowing him to walk with crutches even when the devices were turned off. The researchers believe that this indicates neuronal reorganization and restored communication.
The digital bridge implants, combined with artificial intelligence algorithms, enabled Gert-Jan to walk and stand more naturally without the need for additional wearable sensors. The Brain-Spine Interface (BSI) also enabled him to overcome challenges like climbing stairs and navigating varying terrains. The system involves training the patient to correlate their brain signals with spinal cord stimulation, which proved to be a relatively quick process.
While this technology may not be suitable for all types of spinal cord injuries and has only been tested on one individual, it shows great potential for leveraging technology and AI to address nervous system gaps caused by injury. Gert-Jan has experienced significant improvements in his quality of life, such as being able to stand at a bar and enjoy a drink with friends—a seemingly small pleasure that has made a big difference in his recovery.