A CMOS Neural Interface for a Multichannel Vestibular Prosthesis

A neural interface for a cortical vision prosthesis

The development of a cortically based vision prosthesis has been hampered by a lack of basic experiments on phosphene psychophysics. This basic research has been hampered by the lack of a means to safely stimulate large numbers of cortical neurons. Recently, a number of laboratories have developed arrays of silicon microelectrodes that could enable such basic studies on phosphene psychophysics....

Design of a low-power interface circuitry for a vestibular prosthesis system

Stability of chronic multichannel neural recordings: Implications for a long-term neural interface

Chronic multichannel neural recording has emerged as a powerful technique for studying dynamic brain function. In many experimental paradigms, it is important that the same neurons be recorded from day to day. The objective of this study was to develop methods for tracking the recorded neural population over time through analysis of unit waveforms, principle component clusters and response prop...

Eye movement studies with a vestibular prosthesis

Vestibular loss, which can manifest as dizziness, imbalance, or spatial disorientation, is widespread and often caused by inner ear hair cell malfunction. To address these problems, we are developing a vestibular implant analogous to cochlear implants for the deaf. This vestibular prosthesis provides pulsatile electrical stimulation to the vestibular nerve. Prosthesis effectiveness is assessed ...

Towards a Wireless Implantable Vestibular Prosthesis

This paper presents the preliminary design of the integrated stimulator and telemetry subsystems for a vestibular prosthesis to restore balance function. The work is part of the European project CLONS. The stimulator is designed to provide biphasic current pulses at specified amplitude, duration and rate to stimulate the semicircular canals in the vestibular system. Power and data transfer is p...