Title :
A study on electrical stimulation to visual nervous system in visual prosthesis
Author :
Kanda, H. ; Yagi, T. ; Nakatsu, T. ; Watanabe, M. ; Uchikawa, Y.
Author_Institution :
Dept. of Computational Sci. & Eng., Nagoya Univ., Japan
Abstract :
Effective electrical stimulation is important to a visual prosthesis. We focus on the neural response in vivo electrical stimulation experiment, changing the stimulation parameters and anode-cathode distance. The experimental results obtained suggest that the pulse amplitude can be the main factor for efficient stimulation rather than the pulse duration. Besides, a biphasic pulse is the most effective among other pulse patterns such as a single and double pulse respectively
Keywords :
CCD image sensors; neural nets; neurophysiology; prosthetics; visual evoked potentials; CCD camera; MEMS; anode-cathode distance; biphasic pulse; blindness; electrical stimulation; neural response; pulse amplitude; signal processor; vision; visual nervous system; visual prosthesis; Blindness; Circuits; Electrical stimulation; Electrodes; Energy consumption; Micromechanical devices; Nervous system; Pulse shaping methods; Space vector pulse width modulation; Visual prosthesis;
Conference_Titel :
Industrial Electronics Society, 2000. IECON 2000. 26th Annual Confjerence of the IEEE
Conference_Location :
Nagoya
Print_ISBN :
0-7803-6456-2
DOI :
10.1109/IECON.2000.973134
