Evidence map›Paper›PMID 34671032›Full record

ArticleNature communications2021

Spared perilesional V1 activity underlies training-induced recovery of luminance detection sensitivity in cortically-blind patients.

Antoine Barbot, Anasuya Das, Michael D Melnick, Matthew R Cavanaugh, Elisha P Merriam, David J Heeger, Krystel R Huxlin

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 5% 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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. From error to evidence: blindsight in the making†.Cerebral cortex (New York, N.Y. : 1991) · 2026
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  8. Review
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  11. Exogenous Spatial Attention Helps Overcome Spatial Specificity of Visual Learning in the Blind Field After V1 Damage.Journal of cognitive enhancement : towards the integration of theory and practice · 2025
    Article
  12. Voxel-Based Lesion-Symptom Mapping Localizes Residual Visual Function in Hemianopia.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  13. Article
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  18. qPRF: A system to accelerate population receptive field decoding.bioRxiv : the preprint server for biology · 2024
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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

7 authors at 4 institutions in 3 countries.

Antoine BarbotFlaum Eye Institute, University of Rochester Medical Center, Rochester, NY, USA.
Anasuya DasFlaum Eye Institute, University of Rochester Medical Center, Rochester, NY, USA.
Michael D MelnickCenter for Visual Science, University of Rochester, Rochester, NY, USA.
Matthew R CavanaughFlaum Eye Institute, University of Rochester Medical Center, Rochester, NY, USA.
Elisha P Merriam *Center for Neural Science, New York University, New York, NY, USA.
David J Heeger *Center for Neural Science, New York University, New York, NY, USA.ORCID 0000-0002-3282-9898
Krystel R Huxlin *Flaum Eye Institute, University of Rochester Medical Center, Rochester, NY, USA. khuxlin@ur.rochester.edu.ORCID 0000-0001-7138-6156
University of Rochester Medical Center · USNational Institute of Mental Health · USNew York University · USUniversity of Rochester · US

Funding

VISUAL SCIENCE RESEARCH CTR SUPPORTP30EY001319 · NEI · UNIVERSITY OF ROCHESTER · PI William H Merigan · 1985 to 2026
$17.5M
VISUAL SCIENCET32EY007125 · NEI · UNIVERSITY OF ROCHESTER · PI Krystel R Huxlin, Duje Tadin · 1990 to 2026
$7.1M
Vision recovery in cortical blindnessR01EY027314 · NEI · UNIVERSITY OF ROCHESTER · PI MARISA CARRASCO, Krystel R Huxlin · 2017 to 2026
$5.3M
Mechanisms of visual learning in cortical blindnessR01EY021209 · NEI · UNIVERSITY OF ROCHESTER · PI HUXLIN, KRYSTEL R · 2011 to 2014
$1.5M
Properties of training-induced visual recovery in cortical blindnessF31EY025918 · NEI · UNIVERSITY OF ROCHESTER · PI CAVANAUGH, MATTHEW R. · 2016 to 2016
$37k
NEI NIH HHS F31 EY025918NEI NIH HHS P30 EY001319NEI NIH HHS R01 EY021209NEI NIH HHS R01 EY027314NEI NIH HHS T32 EY007125
6 · The paper itself

Abstract

Damage to the primary visual cortex (V1) causes homonymous visual-field loss long considered intractable. Multiple studies now show that perceptual training can restore visual functions in chronic cortically-induced blindness (CB). A popular hypothesis is that training can harness residual visual functions by recruiting intact extrageniculostriate pathways. Training may also induce plastic changes within spared regions of the damaged V1. Here, we link changes in luminance detection sensitivity with retinotopic fMRI activity before and after visual discrimination training in eleven patients with chronic, stroke-induced CB. We show that spared V1 activity representing perimetrically-blind locations prior to training predicts the amount of training-induced recovery of luminance detection sensitivity. Additionally, training results in an enlargement of population receptive fields in perilesional V1, which increases blind-field coverage and may support further recovery with subsequent training. These findings uncover fundamental changes in perilesional V1 cortex underlying training-induced restoration of conscious luminance detection sensitivity in CB.

Indexed as

AdultAgedBlindness, CorticalBrain MappingDiscrimination, PsychologicalFemaleFunctional LateralityHumansLearningMagnetic Resonance ImagingMaleMiddle AgedNeuronal PlasticityRecovery of FunctionVision, OcularVisual Cortex

Identifiers

PMID34671032
PMCPMC8528839
OpenAlexW3207459191

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.