July 2019
Volume 19, Issue 8
Open Access
OSA Fall Vision Meeting Abstract  |   July 2019
Pulse trains to percepts: The challenge of creating a perceptually intelligible world by electrically stimulating visual cortex
Author Affiliations
  • Geoffrey M. Boynton
    Department of Psychology, University of Washington
Journal of Vision July 2019, Vol.19, 28. doi:https://doi.org/10.1167/19.8.28
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      Geoffrey M. Boynton; Pulse trains to percepts: The challenge of creating a perceptually intelligible world by electrically stimulating visual cortex. Journal of Vision 2019;19(8):28. doi: https://doi.org/10.1167/19.8.28.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

For many blind individuals, one promising approach for restoring vision is direct electrical stimulation of visual cortex, using either surface or penetrating electrodes. One visual cortical implant based on surface electrodes (Orion, Second Sight Medical Implants) has already received conditional FDA approval, with others are scheduled to start clinical trials within a few years. However, as yet we have little insight into the perceptual experience likely to be produced by these implants – what will the world look like to patients? Here we describe a simple model that demonstrates how interactions between the implant electronics and the underlying neurophysiology are likely to influence perceptual outcomes in visual cortical prosthesis patients.

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