Evidence map›Paper›PMID 32167467›Full record

ArticleeLife2020

Spatiotemporal patterns of neocortical activity around hippocampal sharp-wave ripples.

J Karimi Abadchi, Mojtaba Nazari-Ahangarkolaee, Sandra Gattas, Edgar Bermudez-Contreras, Artur Luczak, Bruce L McNaughton, Majid H Mohajerani

Open access · goldAbstract read
In one paragraph

Article in eLife, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
11.8field-weighted citation impact, top 1% 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

80 citing papers in PubMed, 144 citations in OpenAlex.

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  16. Brain State-Dependent Neocortico-Hippocampal Network Dynamics Are Modulated by Postnatal Stimuli.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  17. Brain State-Dependent Neocortico-Hippocampal Network Dynamics Are Modulated by Postnatal Stimuli.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
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20 more citing papers are in PubMed but not listed here.

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 2 institutions in 2 countries.

J Karimi AbadchiCanadian Centre for Behavioral Neuroscience, University of Lethbridge, Lethbridge, Canada.ORCID 0000-0003-4175-7598
Mojtaba Nazari-AhangarkolaeeCanadian Centre for Behavioral Neuroscience, University of Lethbridge, Lethbridge, Canada.
Sandra GattasDepartment of Electrical Engineering and Computer Science, University of California, Irvine, United States.ORCID 0000-0003-1608-1469
Edgar Bermudez-ContrerasCanadian Centre for Behavioral Neuroscience, University of Lethbridge, Lethbridge, Canada.ORCID 0000-0002-4937-1780
Artur LuczakCanadian Centre for Behavioral Neuroscience, University of Lethbridge, Lethbridge, Canada.
Bruce L McNaughtonCanadian Centre for Behavioral Neuroscience, University of Lethbridge, Lethbridge, Canada.
Majid H MohajeraniCanadian Centre for Behavioral Neuroscience, University of Lethbridge, Lethbridge, Canada.ORCID 0000-0003-0964-2977
University of Lethbridge · CAUniversity of California, Irvine · US

Funding

Neocortical-Hippocampal Circuits Underlying Pattern Separation in HumansF30AG069406 · NIA · UNIVERSITY OF CALIFORNIA-IRVINE · PI GATTAS, SANDRA · 2020 to 2023
$136k
Alberta Prion Research Institute 43568CIHR 156040CIHR 390930Defense Advanced Research Projects Agency HR0011-18-2-0021Natural Sciences and Engineering Research Council of Canada 1631465Natural Sciences and Engineering Research Council of Canada 40352NIA NIH HHS F30 AG069406
6 · The paper itself

Abstract

A prevalent model is that sharp-wave ripples (SWR) arise 'spontaneously' in CA3 and propagate recent memory traces outward to the neocortex to facilitate memory consolidation there. Using voltage and extracellular glutamate transient recording over widespread regions of mice dorsal neocortex in relation to CA1 multiunit activity (MUA) and SWR, we find that the largest SWR-related modulation occurs in retrosplenial cortex; however, contrary to the unidirectional hypothesis, neocortical activation exhibited a continuum of activation timings relative to SWRs, varying from leading to lagging. Thus, contrary to the model in which SWRs arise 'spontaneously' in the hippocampus, neocortical activation often precedes SWRs and may thus constitute a trigger event in which neocortical information seeds associative reactivation of hippocampal 'indices'. This timing continuum is consistent with a dynamics in which older, more consolidated memories may in fact initiate the hippocampal-neocortical dialog, whereas reactivation of newer memories may be initiated predominantly in the hippocampus.

Indexed as

Spatio-Temporal AnalysisAnimalsFemaleHippocampusMaleMemory ConsolidationMiceMice, Inbred C57BLNeocortexNeural PathwaysSleephippocampal-neocortical interactionhippocampusmemory consolidationmouseneocortexneurosciencesharp-wave ripplewide-field mesoscale optical imaging

Identifiers

PMID32167467
PMCPMC7096182
OpenAlexW3011792982

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.