The Development of a Two-Dimensional Multielectrode Array for Visual Perception Research in the Mammalian Brain

摘要

A review of previous mammalian visual systems neurological and psychological research is presented. Results of previous research motivated the development of a device that would record fine grained electroencephalic data from the surface of a living mammalian cortex. A multiplexing multielectrode array has been developed and tested for this purpose. The device consists of a four by four array of electrodes and sixteen junction field effect transistors fabricated on a silicon substrate using integrated circuit manufacturing techniques. In vitro tests indicated the device is capable of detecting and multiplexing fine grained cortical signals. Technical problems with the passivation material precluded in vivo evaluation. A solution to this problem is presented and an in vivo test procedure recommended. (Author)