Title
Can electric current steering be used to control perception of a retinal prosthesis patient.
Abstract
We consider a form of current steering to elicit desired perceptions in users of a retinal prosthesis. While it is common to use a single, remote return electrode to balance electrical stimulation, advances in chip design and electrical switching have enabled more flexibility in stimulation paradigms. We have created a finite-element model of a retina and a ten electrode prosthesis in COMSOL. Different configurations of stimulating and return electrodes are considered and employed to predict possible user perception. We investigate charge balance on electrodes in our varying geometries and consider the impact of inhomogeneous resistance between electrodes and the tissue.
Year
DOI
Venue
2012
10.1109/EMBC.2012.6346598
EMBC
Keywords
Field
DocType
eye,stimulation paradigms,medical control systems,electrical switching,bioelectric potentials,biomedical electrodes,retinal prosthesis patient,remote return electrode,perception control,prosthetics,medical signal processing,comsol,finite element model,charge balance,electrode prosthesis,user perception,tissue,electrical stimulation,finite element analysis,electric current,visual perception,biological tissues,electric current steering,chip design,inhomogeneous resistance
Computer science,Electronic engineering,Integrated circuit design,Retinal Prosthesis,Perception,Electrical engineering,Visual perception,Electrode,Electric current
Conference
Volume
ISSN
ISBN
2012
1557-170X
978-1-4577-1787-1
Citations 
PageRank 
References 
1
0.43
4
Authors
4
Name
Order
Citations
PageRank
Craig O Savage131.63
Filiz Isabell Kiral-Kornek220.86
Bahman Tahayori332.55
David B. Grayden4326.82