Evidence map›Paper›PMID 31235711›Full record

ArticleScientific reports2019

A model of ganglion axon pathways accounts for percepts elicited by retinal implants.

Michael Beyeler, Devyani Nanduri, James D Weiland, Ariel Rokem, Geoffrey M Boynton, Ione Fine

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 1 pooled it
8.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

71 citing papers in PubMed, 1 synthesis or guideline pooled it, 148 citations in OpenAlex.

  1. Pooled it
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  12. Evaluating Deep Human-in-the-Loop Optimization for Retinal Implants Using Sighted Participants.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2025
    Article
  13. Efficient Spatial Estimation of Perceptual Thresholds for Retinal Implants via Gaussian Process Regression.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2025
    Article
  14. Article
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  17. Static or Temporal? Semantic Scene Simplification to Aid Wayfinding in Immersive Simulations of Bionic Vision.Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology · 2025
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11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Michael BeyelerDepartment of Psychology, University of Washington, Seattle, WA, 98195, USA. mbeyeler@uw.edu.ORCID http://orcid.org/0000-0001-5233-844X
Devyani NanduriDepartment of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90033, USA.ORCID http://orcid.org/0000-0002-8726-322X
James D WeilandDepartment of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90033, USA.
Ariel RokemInstitute for Neuroengineering, University of Washington, Seattle, WA, 98195, USA.ORCID http://orcid.org/0000-0003-0679-1985
Geoffrey M BoyntonDepartment of Psychology, University of Washington, Seattle, WA, 98195, USA.ORCID http://orcid.org/0000-0001-6561-6920
Ione FineDepartment of Psychology, University of Washington, Seattle, WA, 98195, USA.ORCID http://orcid.org/0000-0002-0142-7239
University of Washington · USUniversity of Southern California · US

Funding

The Effects of Attention in Human Visual CortexR01EY012925 · NEI · UNIVERSITY OF WASHINGTON · PI BOYNTON, GEOFFREY M · 1999 to 2018
$5.6M
The Effects of Visual DeprivationR01EY014645 · NEI · UNIVERSITY OF WASHINGTON · PI FINE, IONE · 2004 to 2021
$5.3M
Learning to see again: biological constraints on cortical plasticity and the implications for sight restoration technologiesR01EY031312 · NEI · UNIVERSITY OF WASHINGTON · PI BOYNTON, GEOFFREY M, FINE, IONE · 2021 to 2025
$2.0M
Virtual prototyping for retinal prosthesis patientsK99EY029329 · NEI · UNIVERSITY OF WASHINGTON · PI BEYELER, MICHAEL · 2018 to 2019
$245k
NEI NIH HHS K99 EY029329NEI NIH HHS R01 EY012925NEI NIH HHS R01 EY014645NEI NIH HHS R01 EY031312
6 · The paper itself

Abstract

Degenerative retinal diseases such as retinitis pigmentosa and macular degeneration cause irreversible vision loss in more than 10 million people worldwide. Retinal prostheses, now implanted in over 250 patients worldwide, electrically stimulate surviving cells in order to evoke neuronal responses that are interpreted by the brain as visual percepts ('phosphenes'). However, instead of seeing focal spots of light, current implant users perceive highly distorted phosphenes that vary in shape both across subjects and electrodes. We characterized these distortions by asking users of the Argus retinal prosthesis system (Second Sight Medical Products Inc.) to draw electrically elicited percepts on a touchscreen. Using ophthalmic fundus imaging and computational modeling, we show that elicited percepts can be accurately predicted by the topographic organization of optic nerve fiber bundles in each subject's retina, successfully replicating visual percepts ranging from 'blobs' to oriented 'streaks' and 'wedges' depending on the retinal location of the stimulating electrode. This provides the first evidence that activation of passing axon fibers accounts for the rich repertoire of phosphene shape commonly reported in psychophysical experiments, which can severely distort the quality of the generated visual experience. Overall our findings argue for more detailed modeling of biological detail across neural engineering applications.

Indexed as

Electrodes, ImplantedPhosphenesVisual ProsthesisAgedComputer SimulationElectric StimulationFemaleHumansMacular DegenerationMaleMiddle AgedModels, NeurologicalRetinal Ganglion CellsRetinitis PigmentosaVisual Perception

Identifiers

PMID31235711
PMCPMC6591412
OpenAlexW2953775847

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.