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Prosthetic Vision, Perceptual Effects

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Encyclopedia of Computational Neuroscience

Synonyms

Artificial vision; Bionic vision; Perceptual correlates; Subjective experience; Visual sensations of visual prostheses

Definition

Perceptual effects of prosthetic vision refer to the subjective experiences elicited by the use of a visual prosthetic device.

Detailed Description

General Appearance of Electrically Elicited Percepts

Visual prostheses that have been tested in human clinical trials are, as yet, invariably based on implanted devices that electrically stimulate the visual system. Most studies have focused on retinal implants, as opposed to cortical, optic nerve, and thalamic implants. Electrical point stimulation of visual nervous tissue can elicit localized flashes of light called phosphenes. Phosphenes generated by retinal stimulation are typically perceived as circular, oval, or ring-shaped spots of light (Rizzo et al. 2003; De Balthasar et al. 2008), but a variety of other shapes have been reported (Keserü et al. 2012). Typically they are white or yellow (Humayun...

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Author information

Authors and Affiliations

  1. Johns Hopkins University School of Medicine, Baltimore, MD, USA

    Gislin Dagnelie

  2. Computer Vision, NICTA, 7 London Circuit, Canberra, ACT, 2601, Australia

    H. Christiaan Stronks

Authors
  1. Gislin Dagnelie
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  2. H. Christiaan Stronks
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Corresponding author

Correspondence to Gislin Dagnelie .

Editor information

Editors and Affiliations

  1. Atlanta, Georgia, USA

    Dieter Jaeger

  2. Department of Biomedical Engineering, Florida International University, Miami, Florida, USA

    Ranu Jung

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© 2014 Springer Science+Business Media New York

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Dagnelie, G., Stronks, H.C. (2014). Prosthetic Vision, Perceptual Effects. In: Jaeger, D., Jung, R. (eds) Encyclopedia of Computational Neuroscience. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7320-6_657-1

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  • DOI: https://doi.org/10.1007/978-1-4614-7320-6_657-1

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  • Publisher Name: Springer, New York, NY

  • Online ISBN: 978-1-4614-7320-6

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