Evidence map›Paper›PMID 30842660›Full record

ArticleNature2019

Single-neuron perturbations reveal feature-specific competition in V1.

Selmaan N Chettih, Christopher D Harvey

Abstract read
In one paragraph

Article in Nature, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 141 papers.

0numbers the graph read from it
0cells of the map it votes in
141citing papers in PubMed
–field-weighted citation impact
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

141 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. The Importance of Synchrony in the Neural Control of Movement.bioRxiv : the preprint server for biology · 2026
    Article
  5. Article
  6. Article
  7. Functional reorganization of motor cortex connectivity during learning.bioRxiv : the preprint server for biology · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Principles of cortical interactions in modular recurrent networks.bioRxiv : the preprint server for biology · 2026
    Article
  13. Critical scaling of novelty in the cortex.Nature communications · 2026
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Connectivity, Computation, and Plasticity of the Early Visual System.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Review
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Selmaan N ChettihDepartment of Neurobiology, Harvard Medical School, Boston, MA, USA.
Christopher D HarveyDepartment of Neurobiology, Harvard Medical School, Boston, MA, USA. harvey@hms.harvard.edu.

Funding

Viral ModuleP30EY012196 · NEI · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI Gabriel Kreiman · 1998 to 2026
$21.3M
Studying perceptual decision-making across cortex by combining population imaging, connectomics, and computational modelingR01NS108410 · NINDS · HARVARD MEDICAL SCHOOL · PI HARVEY, CHRISTOPHER D, LEE, WEI-CHUNG ALLEN · 2018 to 2022
$5.7M
Parietal Cortex Networks for Sensorimotor Processing During NavigationR01NS089521 · NINDS · HARVARD MEDICAL SCHOOL · PI HARVEY, CHRISTOPHER D · 2015 to 2024
$4.5M
New approaches to understand neuronal microcircuit dynamics for working memoryR01MH107620 · NIMH · HARVARD MEDICAL SCHOOL · PI HARVEY, CHRISTOPHER D · 2015 to 2019
$2.8M
NEI NIH HHS P30 EY012196NIMH NIH HHS R01 MH107620NINDS NIH HHS R01 NS089521NINDS NIH HHS R01 NS108410Wellcome Trust
6 · The paper itself

Abstract

The computations performed by local neural populations, such as a cortical layer, are typically inferred from anatomical connectivity and observations of neural activity. Here we describe a method-influence mapping-that uses single-neuron perturbations to directly measure how cortical neurons reshape sensory representations. In layer 2/3 of the primary visual cortex (V1), we use two-photon optogenetics to trigger action potentials in a targeted neuron and calcium imaging to measure the effect on spiking in neighbouring neurons in awake mice viewing visual stimuli. Excitatory neurons on average suppressed other neurons and had a centre-surround influence profile over anatomical space. A neuron's influence on its neighbour depended on their similarity in activity. Notably, neurons suppressed activity in similarly tuned neurons more than in dissimilarly tuned neurons. In addition, photostimulation reduced the population response, specifically to the targeted neuron's preferred stimulus, by around 2%. Therefore, V1 layer 2/3 performed feature competition, in which a like-suppresses-like motif reduces redundancy in population activity and may assist with inference of the features that underlie sensory input. We anticipate that influence mapping can be extended to investigate computations in other neural populations.

Indexed as

Models, NeurologicalNeural InhibitionAction PotentialsAnimalsCalcium SignalingMiceMice, Inbred C57BLNeuronsOptogeneticsPhotic StimulationVisual CortexVisual Perception

Identifiers

PMID30842660
PMCPMC6682407

What OpenQuestion holds

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Registered trials

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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.