Evidence map›Paper›PMID 33683198›Full record

ArticleeLife2021

Relationship between simultaneously recorded spiking activity and fluorescence signal in GCaMP6 transgenic mice.

Lawrence Huang, Peter Ledochowitsch, Ulf Knoblich, Jérôme Lecoq, Gabe J Murphy, R Clay Reid, Saskia Ej de Vries, Christof Koch, Hongkui Zeng, Michael A Buice and 2 more

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 118 papers.

0numbers the graph read from it
0cells of the map it votes in
118citing 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

118 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Precise calcium-to-spike inference using biophysical generative models.bioRxiv : the preprint server for biology · 2026
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. NPAS4 refines spatial and temporal firing in CA1 pyramidal neurons.bioRxiv : the preprint server for biology · 2026
    Article
  12. Article
  13. Article
  14. Chronic alteration of CabioRxiv : the preprint server for biology · 2025
    Article
  15. Improved inference of latent neural states from calcium imaging data.bioRxiv : the preprint server for biology · 2025
    Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article

58 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

12 authors.

Lawrence Huang *Allen Institute for Brain Science, Seattle, United States.
Peter Ledochowitsch *Allen Institute for Brain Science, Seattle, United States.ORCID 0000-0003-0835-3444
Ulf KnoblichAllen Institute for Brain Science, Seattle, United States.
Jérôme LecoqAllen Institute for Brain Science, Seattle, United States.
Gabe J MurphyAllen Institute for Brain Science, Seattle, United States.
R Clay ReidAllen Institute for Brain Science, Seattle, United States.ORCID 0000-0002-8697-6797
Saskia Ej de VriesAllen Institute for Brain Science, Seattle, United States.ORCID 0000-0002-3704-3499
Christof KochAllen Institute for Brain Science, Seattle, United States.
Hongkui ZengAllen Institute for Brain Science, Seattle, United States.ORCID 0000-0002-0326-5878
Michael A BuiceAllen Institute for Brain Science, Seattle, United States.ORCID 0000-0002-2196-1498
Jack WatersAllen Institute for Brain Science, Seattle, United States.ORCID 0000-0002-2312-4183
Lu LiAllen Institute for Brain Science, Seattle, United States.

Funding

Models and Methods for Calcium Imaging Data with Application to the Allen Brain ObservatoryR01EB026908 · NIBIB · UNIVERSITY OF WASHINGTON · PI BUICE, MICHAEL, WITTEN, DANIELA · 2018 to 2020
$1.1M
NIBIB NIH HHS R01 EB026908
6 · The paper itself

Abstract

Fluorescent calcium indicators are often used to investigate neural dynamics, but the relationship between fluorescence and action potentials (APs) remains unclear. Most APs can be detected when the soma almost fills the microscope's field of view, but calcium indicators are used to image populations of neurons, necessitating a large field of view, generating fewer photons per neuron, and compromising AP detection. Here, we characterized the AP-fluorescence transfer function in vivo for 48 layer 2/3 pyramidal neurons in primary visual cortex, with simultaneous calcium imaging and cell-attached recordings from transgenic mice expressing GCaMP6s or GCaMP6f. While most APs were detected under optimal conditions, under conditions typical of population imaging studies, only a minority of 1 AP and 2 AP events were detected (often <10% and ~20-30%, respectively), emphasizing the limits of AP detection under more realistic imaging conditions.

Indexed as

CalciumCalcium-Binding ProteinsFluorescent DyesAction PotentialsAnimalsFemaleMaleMiceMice, TransgenicMicroscopy, FluorescencePrimary Visual CortexPyramidal CellsCalciumCalcium-Binding ProteinsFluorescent Dyesaction potentialcalcium imagingcalibrationcell-attached recordingexcitatory neuronsgenetically encoded calcium indicatormouseneuroscience

Identifiers

PMID33683198
PMCPMC8060029

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.