In a first-of-its-kind experiment conducted at the University of Pittsburgh and Carnegie Mellon University, researchers successfully used electrical spinal cord stimulation (SCS) to help two stroke survivors regain significant arm and hand mobility. The study, published in in February 2023, demonstrated that zapping specific cervical (neck) nerve roots can instantly amplify weakened signals from the brain to paralyzed limbs. Key Highlights of the Study In test, zaps to spine help 2 stroke survivors move arms