Evidence map›Paper›PMID 19474312›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2009

Stability of thalamocortical synaptic transmission across awake brain states.

Carl R Stoelzel, Yulia Bereshpolova, Harvey A Swadlow

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

39 citing papers in PubMed, 85 citations in OpenAlex.

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  3. Predictable Fluctuations in Excitatory Synaptic Strength Due to Natural Variation in Presynaptic Firing Rate.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
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  7. Modeling the Short-Term Dynamics ofThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
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  10. Axonal Conduction Delays, Brain State, and Corticogeniculate Communication.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  11. Focal Local Field Potential Signature of the Single-Axon Monosynaptic Thalamocortical Connection.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
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  20. Neuromodulators produce distinct activated states in neocortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    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

3 authors at 1 institution in 1 country.

Carl R StoelzelDepartment of Psychology, The University of Connecticut, Storrs, Connecticut 06269, USA.
Yulia Bereshpolova
Harvey A Swadlow
University of Connecticut · US

Funding

Cortical processing of visual information during alert and non-alert brain statesR01EY018251 · NEI · UNIVERSITY OF CONNECTICUT STORRS · PI SWADLOW, HARVEY A · 2008 to 2014
$2.6M
NEI NIH HHS EY018251NEI NIH HHS R01 EY018251
6 · The paper itself

Abstract

Sensory cortical neurons are highly sensitive to brain state, with many neurons showing changes in spatial and/or temporal response properties and some neurons becoming virtually unresponsive when subjects are not alert. Although some of these changes are undoubtedly attributable to state-related filtering at the thalamic level, another likely source of such effects is the thalamocortical (TC) synapse, where activation of nicotinic receptors on TC terminals have been shown to enhance synaptic transmission in vitro. However, monosynaptic TC synaptic transmission has not been directly examined during different states of alertness. Here, in awake rabbits that shifted between alert and non-alert EEG states, we examined the monosynaptic TC responses and short-term synaptic dynamics generated by spontaneous impulses of single visual and somatosensory TC neurons. We did this using spike-triggered current source-density analysis, an approach that enables assessment of monosynaptic extracellular currents generated in different cortical layers by impulses of single TC afferents. Spontaneous firing rates of TC neurons were higher, and burst rates were much lower in the alert state. However, we found no state-related changes in the amplitude of monosynaptic TC responses when TC spikes with similar preceding interspike interval were compared. Moreover, the relationship between the preceding interspike interval of the TC spike and postsynaptic response amplitude was not influenced by state. These data indicate that TC synaptic transmission and dynamics are highly conserved across different states of alertness and that observed state-related changes in receptive field properties that occur at the cortical level result from other mechanisms.

Indexed as

Action PotentialsAnimalsCerebral CortexElectroencephalographyNeural InhibitionNeural PathwaysNeuronsRabbitsReaction TimeSynaptic TransmissionThalamusWakefulness

Identifiers

PMID19474312
PMCPMC2713605
OpenAlexW2070170738

What OpenQuestion holds

Textmetadata
LicenceTDM
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.