Evidence map›Paper›PMID 33522479›Full record

ArticleeLife2021

Laminar-specific cortico-cortical loops in mouse visual cortex.

Hedi Young, Beatriz Belbut, Margarida Baeta, Leopoldo Petreanu

Abstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing 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

41 citing papers in PubMed.

  1. Tuft Dendrite Spikes Are Accompanied by Selective Input From Distinct Functional Networks.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. α4β2The Journal of physiology · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Cellular and laminar architecture: A short history and commentary.The Journal of comparative neurology · 2023
    Article
  19. Article
  20. Review
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

4 authors.

Hedi YoungChampalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal.
Beatriz BelbutChampalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal.ORCID 0000-0003-0341-0585
Margarida BaetaChampalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal.
Leopoldo PetreanuChampalimaud Research, Champalimaud Center for the Unknown, Lisbon, Portugal.ORCID 0000-0003-1434-4691

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many theories propose recurrent interactions across the cortical hierarchy, but it is unclear if cortical circuits are selectively wired to implement looped computations. Using subcellular channelrhodopsin-2-assisted circuit mapping in mouse visual cortex, we compared feedforward (FF) or feedback (FB) cortico-cortical (CC) synaptic input to cells projecting back to the input source (looped neurons) with cells projecting to a different cortical or subcortical area. FF and FB afferents showed similar cell-type selectivity, making stronger connections with looped neurons than with other projection types in layer (L)5 and L6, but not in L2/3, resulting in selective modulation of activity in looped neurons. In most cases, stronger connections in looped L5 neurons were located on their apical tufts, but not on their perisomatic dendrites. Our results reveal that CC connections are selectively wired to form monosynaptic excitatory loops and support a differential role of supragranular and infragranular neurons in hierarchical recurrent computations.

Indexed as

AnimalsBiofeedback, PsychologyFemaleMaleMiceMice, Inbred C57BLNeural PathwaysNeuronsVisual Cortexcortical circuitshierarchical processingmouseneurosciencevisual cortex

Identifiers

PMID33522479
PMCPMC7877907

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.