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We present a computational model of the optic pathway which has been adapted to simulate cortical responses to visual-prosthetic stimulation. This model reproduces the statistically observed distributions of spikes for cortical recordings of sham and maximum-intensity stimuli, while simultaneously generating cellular receptive fields consistent with those observed using traditional visual neuroscience...
Reduction of crosstalk in parallel stimulation of the retina is a major issue in improving the performance of retinal prostheses. A three-dimensional (3D) microelectrode array (MEA) has been proposed to mitigate the effect of the electric crosstalk. The efficacy of this configuration in focal electrical stimulation of retinal ganglion cells (RGCs) was investigated by way of an inhomogeneous but isotropic...
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