One aspect of the present disclosure relates to a system for chronic neural recording from conscious, freely-moving subjects. The system can reduce or eliminate noise effects (due to triboelectric noise and audiophonic noise) during the chronic recording of low amplitude neural signals. The triboelectric noise effects can be reduced or eliminated by using in implant lead designed with insulating materials with charge affinities separated by 10 nC/J or less. The recording device can include a preamplifier device that uses capacitors with a low-distortion dielectric material.
