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, Gislin 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 - 2007
Event3rd International IEEE EMBS Conference on Neural Engineering - Kohala Coast, HI, United States
Duration: May 2 2007May 5 2007

Other

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

Fingerprint

Phosphenes
Visual Prosthesis
Visual Cortex
Equipment and Supplies
Testing
Visual Pattern Recognition
Experiments
Research Personnel
Occipital Lobe
Pattern recognition
Blindness
Uncertainty
Retina
Electrodes
Communication
Prostheses and Implants

Keywords

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

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Neuroscience (miscellaneous)

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] https://doi.org/10.1109/CNE.2007.369629

Estimating phosphene maps for psychophysical experiments used in testing a cortical visual prosthesis device. / Srivastava, N. R.; Troyk, P. R.; Towle, V. L.; Curry, D.; Schmidt, E.; Kufta, C.; Dagnelie, Gislin.

Proceedings of the 3rd International IEEE EMBS Conference on Neural Engineering. 2007. p. 130-133 4227234.

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

Srivastava, NR, Troyk, PR, Towle, VL, 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., 4227234, pp. 130-133, 3rd International IEEE EMBS Conference on Neural Engineering, Kohala Coast, HI, United States, 5/2/07. https://doi.org/10.1109/CNE.2007.369629
Srivastava NR, Troyk PR, Towle VL, Curry D, Schmidt E, Kufta C et al. 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. 2007. p. 130-133. 4227234 https://doi.org/10.1109/CNE.2007.369629
Srivastava, N. R. ; Troyk, P. R. ; Towle, V. L. ; Curry, D. ; Schmidt, E. ; Kufta, C. ; Dagnelie, Gislin. / Estimating phosphene maps for psychophysical experiments used in testing a cortical visual prosthesis device. Proceedings of the 3rd International IEEE EMBS Conference on Neural Engineering. 2007. pp. 130-133
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