Key points are not available for this paper at this time.
Reliable and long-lived prostheses for the amelioration of certain neurological conditions can probably, from a technical point of view, be made widely available. Their achievement seems to be not so much a matter of microelectronics' high technology as of materials science, particularly a proper understanding of adhesion, and possibly of new materials technology.
P. E. K. Donaldson (1981) studied this question.