In vivo evaluation of a μECoG array for chronic stimulation.

Abstract

Advancements in neural interfaces capable of neural stimulation have shown that neural implants may potentially target the central nervous system to treat neurological disorders. Unfortunately, many of the current technologies used to stimulate and record from the brain do not suffice for this purpose; those that provide a sufficient channel density, which is required for interfacing and chronic functionality in vivo, fail quickly, while others that last for an extended period of time in vivo are limited in recording and stimulation capabilities. Of the current methodologies available, electrocorticography (ECoG) based implants show promise for providing both high channel density interfaces as well as chronic functionality after implantation. This study evaluates the performance of a μECoG for the purpose of chronic stimulation.