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Visual resolution with retinal implants estimated from recordings in cat visual cortex

DOI to cite this document:
Eckhorn, Reinhard ; Wilms, Marcus ; Schanze, Thomas ; Eger, Marcus ; Hesse, Lutz ; Eysel, Ulf T. ; Kisvárday, Zoltán F. ; Zrenner, Eberhart ; Gekeler, Florian ; Schwahn, Helmut ; Shinoda, Keisuke ; Sachs, Helmut ; Walter, Peter
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Date of publication of this fulltext: 05 Aug 2009 13:34


We investigated cortical responses to electrical stimulation of the retina using epi- and sub-retinal electrodes of 20-100 microm diameter. Temporal and spatial resolutions were assessed by recordings from the visual cortex with arrays of microelectrodes and optical imaging. The estimated resolutions were approximately 40 ms and approximately 1 degrees of visual angle. This temporal resolution of ...


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