Abstract
Applying electrical stimulation to the visual cortex has been shown to produce dot-like visual perceptions called phosphenes. Artificial prosthetic vision is based on the concept that patterns of phosphenes can be used to convey visual information to blind patients. We designed a system that performs real-time simulation of phosphene perceptions evoked by cortical electrical stimulation. Phosphenes are displayed as Gaussian circular and ellipsoid spots on a randomised grid based on existing neurophysiological models of cortical retinotopy and magnification factor. The system consists of a silicon retina camera (analogue integrated vision sensor), desktop computer and headmounted display.
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References
Schmidt, E.M., Bak, M.J., Hambrecht, F.T., Kufta, C.V., O’Rourke, D.K., Vallabhanath, P.: Feasibility of a visual prosthesis for the blind based on intracortical micro stimulation of the visual cortex. Brain 119, 507–522 (1996)
Brindley, G.S., Lewin, W.S.: The sensations produced by electrical stimulation of the visual cortex. J. Physiol. 196, 479–493 (1968)
Dobelle, W.H., Mladejovsky, M.G., Girvin, J.P.: Artificial Vision for the Blind: Electrical Stimulation of Visual Cortex Offers Hope for a Functional Prosthesis. Science 183, 440–444 (1974)
Chen, S.C., Suaning, G.J., Morley, J.W., Lovell, N.H.: Simulating prosthetic vision: I. Visual models of phosphenes. Vision Research 49, 1493–1506 (2009)
Kameda, S., Yagi, T.: An analog VLSI chip emulating sustained and transient response channels of the vertebrate retina. IEEE Transactions on Neural Networks 14(5), 1405–1412 (2003)
Polimeni, J.R., Balasubramanian, M., Schwartz, E.L.: Multi-area visuotopic map complexes in macaque striate and extra-striate cortex. Vision Research 46, 3336–3359 (2006)
Matsuoka, M., Fehervari, T., Okuno, H., Yagi, T.: Simulation of Perception Induced by Electrical Stimulation on Visual Cortex. In: Proceedings of the 3rd Brain Biocommunication Kenkyukai, pp. 5–8 (2009)
Horton, J.C., Hoyt, W.F.: The Representation of the Visual Field in Human Striate Cortex. Arch. Ophtalmol. 109, 816–824 (1991)
Daniel, P.M., Whitteridge, D.: The Representation of the Visual Field on the Cerebral Cortex in Monkeys. J. Physiol. 159, 203–221 (1961)
Okazaki, Y., Fehervari, T., Sawai, H., Yagi, T.: In vivo optical measurements of the activities of mouse striate and extrastriate cortices evoked by intracortical electrical stimulation. In: Okazaki, Y., Fehervari, T., Sawai, H., Yagi, T. (eds.) BPES 2010, 25th Symposium on Biological and Physiological Engineering (in Press, 2010) (in Japanese)
Adams, D.L., Horton, J.C.: A Precise Retinotopic Map of Primate Striate Cortex Generated from the Representation of Angioscotomas. J. Neurosci. 23(9), 3771–3789 (2003)
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Fehervari, T., Matsuoka, M., Okuno, H., Yagi, T. (2010). Real-Time Simulation of Phosphene Images Evoked by Electrical Stimulation of the Visual Cortex. In: Wong, K.W., Mendis, B.S.U., Bouzerdoum, A. (eds) Neural Information Processing. Theory and Algorithms. ICONIP 2010. Lecture Notes in Computer Science, vol 6443. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17537-4_22
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DOI: https://doi.org/10.1007/978-3-642-17537-4_22
Publisher Name: Springer, Berlin, Heidelberg
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