期刊
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
卷 56, 期 1, 页码 172-178出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TBME.2008.2005973
关键词
Foveal magnification; lateral geniculate nucleus; LGN; visual prosthesis
资金
- Bushrod H. Campbell and Adah F. Hall Charity Fund.
- NATIONAL EYE INSTITUTE [R01EY019679] Funding Source: NIH RePORTER
In this paper, placement parameters for microstimulation electrodes in a visual prosthesis are evaluated based on retinotopic models of macaque and human lateral geniculate nucleus. Phosphene patterns were simulated for idealized microwire electrodes as well as for currently available clinical electrodes. For idealized microwire electrodes, spacing as large as 600 pin in three dimensions would allow for over 250 phosphenes per visual hemifield in macaques, and over 800 in humans.
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