Via io9:
a team of neuroscientists from Case Western Reserve University and the University of Kansas Medical Center have devised a solution that appears to work in rats. It’s an implantable prosthesis called a brain-machine-brain interface that serves as a closed-loop microelectronic system. The device works by recording signals from one part of the brain, processing them in real time, and then linking the injury by stimulating a second part of the brain that has lost connectivity. Essentially, the prosthetic works by bridging the gaps caused by brain injuries, which in turn facilitates repair.
Click the link to see more: A Cybernetic Implant That Repairs Brain Damage