Evidence map›Paper›PMID 32413298›Full record

ArticleCell2020

Dynamic Stimulation of Visual Cortex Produces Form Vision in Sighted and Blind Humans.

Michael S Beauchamp, Denise Oswalt, Ping Sun, Brett L Foster, John F Magnotti, Soroush Niketeghad, Nader Pouratian, William H Bosking, Daniel Yoshor

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 116 papers.

0numbers the graph read from it
0cells of the map it votes in
116citing papers in PubMed
14.2field-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

116 citing papers in PubMed, 248 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Neural Vision Restoration in Ophthalmology.Annals of biomedical engineering · 2026
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Motion perception with visual prostheses.Progress in biomedical engineering (Bristol, England) · 2026
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Review

56 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Michael S BeauchampDepartment of Neurosurgery, Baylor College of Medicine, Houston, TX 77030, USA.
Denise OswaltDepartment of Neurosurgery, Baylor College of Medicine, Houston, TX 77030, USA.
Ping SunDepartment of Neurosurgery, Baylor College of Medicine, Houston, TX 77030, USA.
Brett L FosterDepartment of Neurosurgery, Baylor College of Medicine, Houston, TX 77030, USA.
John F MagnottiDepartment of Neurosurgery, Baylor College of Medicine, Houston, TX 77030, USA.
Soroush NiketeghadDepartment of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
Nader PouratianDepartment of Neurosurgery, University of California, Los Angeles, Los Angeles, CA 90095, USA.
William H BoskingDepartment of Neurosurgery, Baylor College of Medicine, Houston, TX 77030, USA.
Daniel YoshorDepartment of Neurosurgery, Baylor College of Medicine, Houston, TX 77030, USA. Electronic address: daniel.yoshor@pennmedicine.upenn.edu.
Baylor College of Medicine · USUniversity of California, Los Angeles · US

Funding

Early Feasibility Clinical Trial of a Visual Cortical ProsthesisUH3NS103442 · NINDS · SECOND SIGHT MEDICAL PRODUCTS, INC. · PI GREENBERG, ROBERT JAY, PATEL, UDAY KIRIT · 2018 to 2023
$6.8M
NEURAL SUBSTRATES OF OPTIMAL MULTISENSORY INTEGRATIONR01NS065395 · NINDS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI Michael S Beauchamp · 2010 to 2026
$5.5M
Visual Form Perception Produced by Electrically Stimulating Human Visual CortexR01EY023336 · NEI · UNIVERSITY OF PENNSYLVANIA · PI DANIEL YOSHOR · 2013 to 2026
$5.3M
Sensory Reinstatement in Human NeocortexR01MH116914 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI FOSTER, BRETT · 2018 to 2022
$2.0M
Spatiotemporal investigations of parietal cortex contributions to episodic memoryR00MH103479 · NIMH · BAYLOR COLLEGE OF MEDICINE · PI FOSTER, BRETT · 2016 to 2018
$747k
NEI NIH HHS R01 EY023336NIMH NIH HHS R00 MH103479NIMH NIH HHS R01 MH116914NINDS NIH HHS R01 NS065395NINDS NIH HHS UH3 NS103442
6 · The paper itself

Abstract

A visual cortical prosthesis (VCP) has long been proposed as a strategy for restoring useful vision to the blind, under the assumption that visual percepts of small spots of light produced with electrical stimulation of visual cortex (phosphenes) will combine into coherent percepts of visual forms, like pixels on a video screen. We tested an alternative strategy in which shapes were traced on the surface of visual cortex by stimulating electrodes in dynamic sequence. In both sighted and blind participants, dynamic stimulation enabled accurate recognition of letter shapes predicted by the brain's spatial map of the visual world. Forms were presented and recognized rapidly by blind participants, up to 86 forms per minute. These findings demonstrate that a brain prosthetic can produce coherent percepts of visual forms.

Indexed as

AdultBlindnessElectric StimulationElectrodesFemaleHumansMaleMiddle AgedPhosphenesVision, OcularVisual CortexVisual PerceptionVisual Prosthesisblindbraindynamicelectricalelectrodeshumanphospheneprostheticstimulationvisual

Identifiers

PMID32413298
PMCPMC7331799
OpenAlexW3025482455

What OpenQuestion holds

Textmetadata
LicenceTDM
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.