Evidence map›Paper›PMID 19214199›Full record

ArticlePLoS computational biology2009

Stochastically gating ion channels enable patterned spike firing through activity-dependent modulation of spike probability.

Joshua T Dudman, Matthew F Nolan

Open access · goldAbstract read
In one paragraph

Article in PLoS computational biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

21 citing papers in PubMed, 44 citations in OpenAlex.

  1. Heterogeneous stochastic bifurcations explain intrinsic oscillatory patterns in entorhinal cortical stellate cells.Proceedings of the National Academy of Sciences of the United States of America · 2022
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  7. How to build a grid cell.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2014
    Review
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  14. The limits of brain determinacy.Proceedings. Biological sciences · 2012
    Review
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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

2 authors at 2 institutions in 2 countries.

Joshua T DudmanJanelia Farm Research Campus, Howard Hughes Medical Institute, Ashburn, Virginia, United States of America. dudmanj@janelia.hhmi.org
Matthew F Nolan
Janelia Research Campus · USUniversity of Edinburgh · GB

Funding

Regulation of HCN channel trafficking and function in the brain by TRIP8bR01NS036658 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI SIEGELBAUM, STEVEN A · 1998 to 2016
$4.5M
Regulation of HCN channel trafficking and function in the brain by TRIP8bR56NS036658 · NINDS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI SIEGELBAUM, STEVEN A · 2012 to 2012
$398k
Biotechnology and Biological Sciences Research Council BB/E014526/1Howard Hughes Medical InstituteMedical Research Council G0501216NINDS NIH HHS NS36658NINDS NIH HHS R01 NS036658NINDS NIH HHS R56 NS036658
6 · The paper itself

Abstract

The transformation of synaptic input into patterns of spike output is a fundamental operation that is determined by the particular complement of ion channels that a neuron expresses. Although it is well established that individual ion channel proteins make stochastic transitions between conducting and non-conducting states, most models of synaptic integration are deterministic, and relatively little is known about the functional consequences of interactions between stochastically gating ion channels. Here, we show that a model of stellate neurons from layer II of the medial entorhinal cortex implemented with either stochastic or deterministically gating ion channels can reproduce the resting membrane properties of stellate neurons, but only the stochastic version of the model can fully account for perithreshold membrane potential fluctuations and clustered patterns of spike output that are recorded from stellate neurons during depolarized states. We demonstrate that the stochastic model implements an example of a general mechanism for patterning of neuronal output through activity-dependent changes in the probability of spike firing. Unlike deterministic mechanisms that generate spike patterns through slow changes in the state of model parameters, this general stochastic mechanism does not require retention of information beyond the duration of a single spike and its associated afterhyperpolarization. Instead, clustered patterns of spikes emerge in the stochastic model of stellate neurons as a result of a transient increase in firing probability driven by activation of HCN channels during recovery from the spike afterhyperpolarization. Using this model, we infer conditions in which stochastic ion channel gating may influence firing patterns in vivo and predict consequences of modifications of HCN channel function for in vivo firing patterns.

Indexed as

Ion Channel GatingAction PotentialsAnimalsCyclic Nucleotide-Gated Cation ChannelsEntorhinal CortexHumansHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsIon TransportModels, NeurologicalNeural ConductionPotassium ChannelsStochastic ProcessesSynaptic TransmissionCyclic Nucleotide-Gated Cation ChannelsHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsPotassium Channels

Identifiers

PMID19214199
PMCPMC2631146
OpenAlexW2036295113

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.