Evidence map›Paper›PMID 36443485›Full record

ArticleNature methods2023

A three-photon head-mounted microscope for imaging all layers of visual cortex in freely moving mice.

Alexandr Klioutchnikov, Damian J Wallace, Juergen Sawinski, Kay-Michael Voit, Yvonne Groemping, Jason N D Kerr

Open access · hybridAbstract read
In one paragraph

Article in Nature methods, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
21.4field-weighted citation impact, top 1% 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

54 citing papers in PubMed, 84 citations in OpenAlex.

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  14. Miniaturized widefield microscope for high speed in vivo voltage imaging.bioRxiv : the preprint server for biology · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Alexandr KlioutchnikovDepartment of Behavior and Brain Organization, Max Planck Institute for Neurobiology of Behavior-caesar, Bonn, Germany.ORCID http://orcid.org/0000-0003-4946-276X
Damian J WallaceDepartment of Behavior and Brain Organization, Max Planck Institute for Neurobiology of Behavior-caesar, Bonn, Germany.ORCID http://orcid.org/0000-0002-2703-656X
Juergen SawinskiDepartment of Behavior and Brain Organization, Max Planck Institute for Neurobiology of Behavior-caesar, Bonn, Germany.ORCID http://orcid.org/0000-0002-7047-3255
Kay-Michael VoitDepartment of Behavior and Brain Organization, Max Planck Institute for Neurobiology of Behavior-caesar, Bonn, Germany.
Yvonne GroempingDepartment of Behavior and Brain Organization, Max Planck Institute for Neurobiology of Behavior-caesar, Bonn, Germany.
Jason N D KerrDepartment of Behavior and Brain Organization, Max Planck Institute for Neurobiology of Behavior-caesar, Bonn, Germany. jason.kerr@mpinb.mpg.de.ORCID http://orcid.org/0000-0001-9459-883X
Center of Advanced European Studies and Research · DEMax Planck Institute of Animal Behavior · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Advances in head-mounted microscopes have enabled imaging of neuronal activity using genetic tools in freely moving mice but these microscopes are restricted to recording in minimally lit arenas and imaging upper cortical layers. Here we built a 2-g, three-photon excitation-based microscope, containing a z-drive that enabled access to all cortical layers while mice freely behaved in a fully lit environment. The microscope had on-board photon detectors, robust to environmental light, and the arena lighting was timed to the end of each line-scan, enabling functional imaging of activity from cortical layer 4 and layer 6 neurons expressing jGCaMP7f in mice roaming a fully lit or dark arena. By comparing the neuronal activity measured from populations in these layers we show that activity in cortical layer 4 and layer 6 is differentially modulated by lit and dark conditions during free exploration.

Indexed as

MicroscopyVisual CortexAnimalsMiceNeurons

Identifiers

PMID36443485
PMCPMC10089923
OpenAlexW4310155405

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.