We can read motor nerves invasively (ie after puncturing the skin) quite well, but noninvasive is much worse and often not useful for prosthetic control (althou

We can read motor nerves invasively (ie after puncturing the skin) quite well, but noninvasive is much worse and often not useful for prosthetic control (although there are exceptions). The problem for invasive monitoring is you then have infection risks in the short-medium term. In the long term, biocompatibility is an issue and leads to tissue reaction to reject the device, impairing signal detection.