Evidence map›Paper›PMID 23179855›Full record

ArticleJournal of computational neuroscience2013

The spatial pattern of light determines the kinetics and modulates backpropagation of optogenetic action potentials.

Nir Grossman, Vasiliki Simiaki, Claire Martinet, Christofer Toumazou, Simon R Schultz, Konstantin Nikolic

Open access · hybridAbstract read
In one paragraph

Article in Journal of computational neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

27 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Article
  3. Optogenetic Stimulation Recruits Cortical Neurons in a Morphology-Dependent Manner.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Quantitative analysis of the optogenetic excitability of CA1 neurons.Frontiers in computational neuroscience · 2023
    Article
  8. Review
  9. Article
  10. Double Two-State Opsin Model With Autonomous Parameter Inference.Frontiers in computational neuroscience · 2021
    Article
  11. Toward Multiplexed Optogenetic Circuits.Frontiers in bioengineering and biotechnology · 2021
    Review
  12. Article
  13. Towards circuit optogenetics.Current opinion in neurobiology · 2018
    Review
  14. Article
  15. Article
  16. Advances in two photon scanning and scanless microscopy technologies for functional neural circuit imaging.Proceedings of the IEEE. Institute of Electrical and Electronics Engineers · 2017
    Article
  17. Article
  18. Article
  19. The Use of DREADDs to Deconstruct Behavior.Frontiers in genetics · 2016
    Review
  20. PyRhO: A Multiscale Optogenetics Simulation Platform.Frontiers in neuroinformatics · 2016
    Article
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

6 authors at 2 institutions in 1 country.

Nir GrossmanInstitute of Biomedical Engineering, Department of Electrical and Electronic Engineering, Imperial College London, London, SW7 2AZ, UK. n.grossman@imperial.ac.uk
Vasiliki Simiaki
Claire Martinet
Christofer Toumazou
Simon R Schultz
Konstantin Nikolic
Imperial College London · GBNIHR Imperial Biomedical Research Centre · GB

Funding

Wellcome Trust 097816/Z/11/A
6 · The paper itself

Abstract

Optogenetics offers an unprecedented ability to spatially target neuronal stimulations. This study investigated via simulation, for the first time, how the spatial pattern of excitation affects the response of channelrhodopsin-2 (ChR2) expressing neurons. First we described a methodology for modeling ChR2 in the NEURON simulation platform. Then, we compared four most commonly considered illumination strategies (somatic, dendritic, axonal and whole cell) in a paradigmatic model of a cortical layer V pyramidal cell. We show that the spatial pattern of illumination has an important impact on the efficiency of stimulation and the kinetics of the spiking output. Whole cell illumination synchronizes the depolarization of the dendritic tree and the soma and evokes spiking characteristics with a distinct pattern including an increased bursting rate and enhanced back propagation of action potentials (bAPs). This type of illumination is the most efficient as a given irradiance threshold was achievable with only 6 % of ChR2 density needed in the case of somatic illumination. Targeting only the axon initial segment requires a high ChR2 density to achieve a given threshold irradiance and a prolonged illumination does not yield sustained spiking. We also show that patterned illumination can be used to modulate the bAPs and hence spatially modulate the direction and amplitude of spike time dependent plasticity protocols. We further found the irradiance threshold to increase in proportion to the demyelination level of an axon, suggesting that measurements of the irradiance threshold (for example relative to the soma) could be used to remotely probe a loss of neural myelin sheath, which is a hallmark of several neurodegenerative diseases.

Indexed as

LightModels, NeurologicalOptogeneticsAction PotentialsAnimalsCalciumChannelrhodopsinsFeedback, PhysiologicalNeuronsReaction TimeCalciumChannelrhodopsins

Identifiers

PMID23179855
PMCPMC3650242
OpenAlexW2163199750

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.