Evidence map›Paper›PMID 19651647›Full record

ReviewPhilosophical transactions of the Royal Society of London. Series B, Biological sciences2009

Wide-field and two-photon imaging of brain activity with voltage- and calcium-sensitive dyes.

Ryota Homma, Bradley J Baker, Lei Jin, Olga Garaschuk, Arthur Konnerth, Lawrence B Cohen, Dejan Zecevic

Abstract readReview
In one paragraph

Review in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

33 citing papers in PubMed, 82 citations in OpenAlex.

  1. Article
  2. Review
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  14. Capitalizing on Directed Evolution and Rational Protein Engineering to Expand the Neuroscientist's Imaging Toolbox.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Connectomics and epilepsy.Current opinion in neurology · 2013
    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

7 authors at 3 institutions in 2 countries.

Ryota HommaDepartment of Cellular and Molecular Physiology, Yale University School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA. ryota.homma@yale.edu
Bradley J Baker
Lei Jin
Olga Garaschuk
Arthur Konnerth
Lawrence B Cohen
Dejan Zecevic
Yale University · USTechnical University of Munich · DEUniversity of Tübingen · DE

Funding

Optical Studies of Neuron Activity and OrganizationR01DC005259 · NIDCD · YALE UNIVERSITY · PI COHEN, LAWRENCE B · 2002 to 2019
$5.4M
Dendritic Integration in Single Vertebrate NeuronsR01NS042739 · NINDS · YALE UNIVERSITY · PI ZECEVIC, DEJAN P · 2002 to 2005
$1.3M
Optical Studies of Neuron Activity and OrganizationR56DC005259 · NIDCD · YALE UNIVERSITY · PI COHEN, LAWRENCE B · 2007 to 2007
$413k
NIDCD NIH HHS DC05259NIDCD NIH HHS R01 DC005259NIDCD NIH HHS R56 DC005259NINDS NIH HHS NS42739NINDS NIH HHS R01 NS042739
6 · The paper itself

Abstract

This review presents three examples of using voltage- or calcium-sensitive dyes to image the activity of the brain. Our aim is to discuss the advantages and disadvantages of each method with particular reference to its application to the study of the brainstem. Two of the examples use wide-field (one-photon) imaging; the third uses two-photon scanning microscopy. Because the measurements have limited signal-to-noise ratio, the paper also discusses the methodological aspects that are critical for optimizing the signal. The three examples are the following. (i) An intracellularly injected voltage-sensitive dye was used to monitor membrane potential in the dendrites of neurons in in vitro preparations. These experiments were directed at understanding how individual neurons convert complex synaptic inputs into the output spike train. (ii) An extracellular, bath application of a voltage-sensitive dye was used to monitor population signals from different parts of the dorsal brainstem. We describe recordings made during respiratory activity. The population signals indicated four different regions with distinct activity correlated with inspiration. (iii) Calcium-sensitive dyes can be used to label many individual cells in the mammalian brain. This approach, combined with two-photon microscopy, made it possible to follow the spike activity in an in vitro brainstem preparation during fictive respiratory rhythms. The organic voltage- and ion-sensitive dyes used today indiscriminatively stain all of the cell types in the preparation. A major effort is underway to develop fluorescent protein sensors of activity for selectively staining individual cell types.

Indexed as

Fluorescent DyesBrain MappingCalciumMicroscopy, ConfocalPhotonsCalciumFluorescent Dyes

Identifiers

PMID19651647
PMCPMC2865128
OpenAlexW2147160906

What OpenQuestion holds

Textmetadata
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.