ABSTRACT
In the elds of neural prosthetics and neural engineering, there are several viable contenders for the prize of best long-term electrode to access cortical control signals for the restoration of communication and movement in humans. This chapter deals with the hypothesis that not only precision but plasticity too may be the unique feature available from single-unit recordings, which is not present in LFPs. Neurotrophic Electrode consists of a glass tip that is 50 microns and a few hundred microns at the upper end. Histological processing has shown that there are myelinated neurites inside the cone tip of the electrode. One of the misconceptions about the neurotrophic electrode is that only one or two can be implanted and thus only one or two signals can be obtained. It is true that only a few can be implanted, and that is due to the bulk of the implanted electronics, not the electrode.
