Evidence map›Paper›PMID 35486692›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2022

Distinct ensembles in the noradrenergic locus coeruleus are associated with diverse cortical states.

Shahryar Noei, Ioannis S Zouridis, Nikos K Logothetis, Stefano Panzeri, Nelson K Totah

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed.

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  15. Frequency Specific Optogenetic Stimulation of the Locus Coeruleus Induces Task-Relevant Plasticity in the Motor Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  16. Electrophysiological correlates of attention in the locus coeruleus-prelimbic cortex circuit during the rodent continuous performance test.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Article
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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

5 authors.

Shahryar NoeiNeural Computation Laboratory, Istituto Italiano di Tecnologia, 38068 Rovereto, Italy.
Ioannis S ZouridisGraduate Training Centre of Neuroscience, International Max Planck Research School (IMPRS), University of Tübingen, 72074 Tübingen, Germany.
Nikos K LogothetisDepartment of Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, 72076 Tübingen, Germany.
Stefano PanzeriNeural Computation Laboratory, Istituto Italiano di Tecnologia, 38068 Rovereto, Italy.ORCID 0000-0003-1700-8909
Nelson K TotahDepartment of Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, 72076 Tübingen, Germany.ORCID 0000-0002-0998-9770

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The noradrenergic locus coeruleus (LC) is a controller of brain and behavioral states. Activating LC neurons en masse by electrical or optogenetic stimulation promotes a stereotypical “activated” cortical state of high-frequency oscillations. However, it has been recently reported that spontaneous activity of LC cell pairs has sparse yet structured time-averaged cross-correlations, which is unlike the highly synchronous neuronal activity evoked by stimulation. Therefore, LC population activity could consist of distinct multicell ensembles each with unique temporal evolution of activity. We used nonnegative matrix factorization (NMF) to analyze large populations of simultaneously recorded LC single units in the rat LC. NMF identified ensembles of spontaneously coactive LC neurons and their activation time courses. Since LC neurons selectively project to specific forebrain regions, we hypothesized that distinct ensembles activate during different cortical states. To test this hypothesis, we calculated band-limited power and spectrograms of local field potentials in cortical area 24a aligned to spontaneous activations of distinct LC ensembles. A diversity of state modulations occurred around activation of different LC ensembles, including a typical activated state with increased high-frequency power as well as other states including decreased high-frequency power. Thus—in contrast to the stereotypical activated brain state evoked by en masse LC stimulation—spontaneous activation of distinct LC ensembles is associated with a multitude of cortical states.

Indexed as

Adrenergic NeuronsLocus CoeruleusArousalNorepinephrineOptogeneticsNorepinephrinecortexcortical stateensemblelocus coeruleusneuromodulation

Identifiers

PMID35486692
PMCPMC9170047

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Registered trials

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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.