Evidence map›Paper›PMID 35232956›Full record

ArticleNature communications2022

Feedforward and feedback interactions between visual cortical areas use different population activity patterns.

João D Semedo, Anna I Jasper, Amin Zandvakili, Aravind Krishna, Amir Aschner, Christian K Machens, Adam Kohn, Byron M Yu

Abstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers.

0numbers the graph read from it
0cells of the map it votes in
93citing 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

93 citing papers in PubMed.

  1. Article
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  5. Loss of neuronal population organization links pathology to behavior in a model of Alzheimer's disease.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  14. Article
  15. Input-dependent directionality of interactions between cortical areas.bioRxiv : the preprint server for biology · 2026
    Article
  16. Decomposing the modulation of interactions between neuronal populations.bioRxiv : the preprint server for biology · 2026
    Article
  17. Article
  18. Article
  19. Article
  20. Article

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

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

8 authors.

João D SemedoElectrical and Computer Engineering Department, Carnegie Mellon University, Pittsburgh, PA, USA. joao.d.semedo@gmail.com.
Anna I JasperDominick Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, USA.
Amin ZandvakiliDominick Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, USA.
Aravind KrishnaDominick Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, USA.ORCID http://orcid.org/0000-0002-4029-2736
Amir AschnerDominick Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, USA.
Christian K Machens *Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal. christian.machens@neuro.fchampalimaud.org.ORCID http://orcid.org/0000-0003-1717-1562
Adam Kohn *Dominick Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, USA. adam.kohn@einsteinmed.edu.
Byron M Yu *Electrical and Computer Engineering Department, Carnegie Mellon University, Pittsburgh, PA, USA. byronyu@cmu.edu.ORCID http://orcid.org/0000-0003-2252-6938

Funding

SUPPORT FOR THE ROSE F KENNEDY IDDRC P50P50HD105352 · NICHD · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI Julie Secombe · 2021 to 2026
$7.0M
Visual Cortical AdaptationR01EY016774 · NEI · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI KOHN, ADAM · 2008 to 2017
$3.7M
Shaping Neural Population Dynamics to Facilitate LearningR01HD071686 · NICHD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BATISTA, AARON PAUL, CHASE, STEVEN M · 2011 to 2021
$3.7M
Computational and Circuit Mechanisms for information transmission in the brainU01NS094288 · NINDS · COLD SPRING HARBOR LABORATORY · PI EDEN, URI TZVI, FRANK, LOREN M · 2015 to 2018
$3.7M
Visual CrowdingR01EY028626 · NEI · ALBERT EINSTEIN COLLEGE OF MEDICINE, INC · PI KOHN, ADAM · 2018 to 2022
$2.4M
Interrogating and Perturbing Neural DynamicsR01NS105318 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Aaron Paul Batista, Steven M Chase · 2017 to 2026
$2.3M
Slow time scale fluctuations in neurons and behaviorR01MH128393 · NIMH · CARNEGIE-MELLON UNIVERSITY · PI MATTHEW A SMITH · 2022 to 2026
$2.2M
CRCNS: Modulating Neural Population Interactions between Cortical AreasR01MH118929 · NIMH · CARNEGIE-MELLON UNIVERSITY · PI SMITH, MATTHEW A, YU, BYRON M. · 2018 to 2022
$1.7M
Neuronal population dynamics within and across cortical areasR01EB026953 · NIBIB · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI DOIRON, BRENT D., SMITH, MATTHEW A · 2018 to 2020
$1.0M
CRCNS: Interhemispheric coordination for memory and actionR01NS147766 · NINDS · CARNEGIE-MELLON UNIVERSITY · PI Joseph Patrick Mayo, MATTHEW A SMITH · 2025 to 2026
$750k
NEI NIH HHS R01 EY016774NEI NIH HHS R01 EY028626NIBIB NIH HHS R01 EB026953NICHD NIH HHS P50 HD105352NICHD NIH HHS R01 HD071686NIMH NIH HHS R01 MH118929NIMH NIH HHS R01 MH128393NINDS NIH HHS R01 NS105318NINDS NIH HHS R01 NS147766NINDS NIH HHS U01 NS094288
6 · The paper itself

Abstract

Brain function relies on the coordination of activity across multiple, recurrently connected brain areas. For instance, sensory information encoded in early sensory areas is relayed to, and further processed by, higher cortical areas and then fed back. However, the way in which feedforward and feedback signaling interact with one another is incompletely understood. Here we investigate this question by leveraging simultaneous neuronal population recordings in early and midlevel visual areas (V1-V2 and V1-V4). Using a dimensionality reduction approach, we find that population interactions are feedforward-dominated shortly after stimulus onset and feedback-dominated during spontaneous activity. The population activity patterns most correlated across areas were distinct during feedforward- and feedback-dominated periods. These results suggest that feedforward and feedback signaling rely on separate "channels", which allows feedback signals to not directly affect activity that is fed forward.

Indexed as

Visual CortexFeedbackNeuronsPhotic StimulationVisual Pathways

Identifiers

PMID35232956
PMCPMC8888615

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.