永利皇宫娱乐场:Brain implants fail because they cut nerve links

 作者:佟赶     |      日期:2019-03-08 08:07:01
By Ewen Callaway EXPERIMENTAL brain implants that have allowed paralysed people to control robotic arms by thought alone are dazzling in their potential, but today’s implants eventually lose their link to the brain. This now seems to be the result of an immune response which severs neural connections near electrodes. Finding drugs or coatings that prevent this process could enable permanent neural prosthetics. “The promise is enormous,” says Ravi Bellamkonda, a bioengineer at the Georgia Institute of Technology in Atlanta. The feasibility of tapping brain signals has been demonstrated, he says,