Estimating phosphene maps for psychophysical experiments used in testing a cortical visual prosthesis device

N. R. Srivastava, P. R. Troyk, V. L. Towle, D. Curry, E. Schmidt, C. Kufta, G. Dagnelie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Visual prosthesis devices are being developed to restore vision for those with blindness. Researchers working in the field of visual prosthesis are taking different approaches to develop a practical device. Some are targeting the retina for stimulation, whereas at least one group is targeting the optical nerve, and our laboratory is developing a system for the visual cortex. To estimate the kind of response they might expect from a typical user, researchers are conducting psychophysical experiments on normally-sighted persons. The device being developed in our laboratory is a first generation visual prosthesis system, designed to test the limits of artificial visual pattern recognition. Targeting the visual cortex area with our first generation device has limitations including limitations in lateral cortical surface area for electrode implantation, surgical difficulties and the lack of understanding as to how to use an artificial interface for communication with the visual cortex. Here, we discuss the uncertainties related to visotopic mapping of the lateral surface of the occipital lobe in humans.

Original languageEnglish (US)
Title of host publicationProceedings of the 3rd International IEEE EMBS Conference on Neural Engineering
Pages130-133
Number of pages4
DOIs
StatePublished - Sep 25 2007
Event3rd International IEEE EMBS Conference on Neural Engineering - Kohala Coast, HI, United States
Duration: May 2 2007May 5 2007

Publication series

NameProceedings of the 3rd International IEEE EMBS Conference on Neural Engineering

Other

Other3rd International IEEE EMBS Conference on Neural Engineering
CountryUnited States
CityKohala Coast, HI
Period5/2/075/5/07

Keywords

  • Intracortical
  • Phosphene map
  • Psychophysical experiments
  • Visual cortex
  • Visual prosthesis

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Neuroscience (miscellaneous)

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  • Cite this

    Srivastava, N. R., Troyk, P. R., Towle, V. L., Curry, D., Schmidt, E., Kufta, C., & Dagnelie, G. (2007). Estimating phosphene maps for psychophysical experiments used in testing a cortical visual prosthesis device. In Proceedings of the 3rd International IEEE EMBS Conference on Neural Engineering (pp. 130-133). [4227234] (Proceedings of the 3rd International IEEE EMBS Conference on Neural Engineering). https://doi.org/10.1109/CNE.2007.369629