Evidence map›Paper›PMID 34426611›Full record

ArticleScientific reports2021

GABAergic inhibition in the human visual cortex relates to eye dominance.

I Betina Ip, Uzay E Emir, Claudia Lunghi, Andrew J Parker, Holly Bridge

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

18 citing papers in PubMed, 21 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. [Research Progress on the Mechanisms of Visual Cortical Plasticity].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Developmental hearing loss-induced perceptual deficits are rescued by genetic restoration of cortical inhibition.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  10. Faster bi-stable visual switching in psychosis.Translational psychiatry · 2024
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
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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

5 authors at 3 institutions in 4 countries.

I Betina IpWellcome Centre for Integrative Neuroimaging, FMRIB, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK. betina.ip@ndcn.ox.ac.uk.
Uzay E EmirSchool of Health Sciences, Purdue University, West Lafayette, Indiana, 47907, USA.
Claudia LunghiLaboratoire des systèmes perceptifs, Département d'études cognitives, École normale supérieure, PSL University, CNRS, 75005, Paris, France.
Andrew J ParkerDepartment of Physiology, Anatomy and Genetics, University of Oxford, Oxford, OX1 3PT, UK.
Holly BridgeWellcome Centre for Integrative Neuroimaging, FMRIB, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK.
University of Oxford · GBPurdue University West Lafayette · USUniversité Paris Sciences et Lettres · FR

Funding

Medical Research Council MR/K014382/1Wellcome TrustWellcome Trust 203139/Z/16/Z
6 · The paper itself

Abstract

Binocular vision is created by fusing the separate inputs arriving from the left and right eyes. 'Eye dominance' provides a measure of the perceptual dominance of one eye over the other. Theoretical models suggest that eye dominance is related to reciprocal inhibition between monocular units in the primary visual cortex, the first location where the binocular input is combined. As the specific inhibitory interactions in the binocular visual system critically depend on the presence of visual input, we sought to test the role of inhibition by measuring the inhibitory neurotransmitter GABA during monocular visual stimulation of the dominant and the non-dominant eye. GABA levels were measured in a single volume of interest in the early visual cortex, including V1 from both hemispheres, using a combined functional magnetic resonance imaging and magnetic resonance spectroscopy (combined fMRI-MRS) sequence on a 7-Tesla MRI scanner. Individuals with stronger eye dominance had a greater difference in GABAergic inhibition between the eyes. This relationship was present only when the visual system was actively processing sensory input and was not present at rest. We provide the first evidence that imbalances in GABA levels during ongoing sensory processing are related to eye dominance in the human visual cortex. Our finding supports the view that intracortical inhibition underlies normal eye dominance.

Indexed as

AdultDominance, OcularFemaleGABAergic Neuronsgamma-Aminobutyric AcidHumansMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMaleNeural InhibitionOxygenPhotic StimulationVision, BinocularVisual CortexYoung Adultgamma-Aminobutyric AcidOxygen

Identifiers

PMID34426611
PMCPMC8382755
OpenAlexW3195944247

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.