Evidence map›Paper›PMID 33606338›Full record

ArticleHippocampus2021

Rodent mnemonic similarity task performance requires the prefrontal cortex.

Sarah A Johnson, Sabrina Zequeira, Sean M Turner, Andrew P Maurer, Jennifer L Bizon, Sara N Burke

Open access · greenAbstract read
In one paragraph

Article in Hippocampus, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.8field-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

13 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
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  3. A compressed code for memory discrimination.bioRxiv : the preprint server for biology · 2025
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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

6 authors at 2 institutions in 1 country.

Sarah A JohnsonEvelyn F. and William L. McKnight Brain Institute, Gainesville, Florida, USA.ORCID 0000-0003-3392-0535
Sabrina ZequeiraEvelyn F. and William L. McKnight Brain Institute, Gainesville, Florida, USA.
Sean M TurnerDepartment of Clinical Health Psychology, University of Florida, Gainesville, Florida, USA.
Andrew P MaurerEvelyn F. and William L. McKnight Brain Institute, Gainesville, Florida, USA.ORCID 0000-0002-5470-237X
Jennifer L BizonEvelyn F. and William L. McKnight Brain Institute, Gainesville, Florida, USA.
Sara N BurkeEvelyn F. and William L. McKnight Brain Institute, Gainesville, Florida, USA.ORCID 0000-0002-1773-1294
University of Florida · USUniversity of Florida Health · US

Funding

The contribution of declines in functional connectivity to cognitive agingR01AG049722 · NIA · UNIVERSITY OF FLORIDA · PI BURKE, SARA N · 2016 to 2025
$3.2M
The contribution of declines in functional connectivity to cognitive agingRF1AG049722 · NIA · UNIVERSITY OF FLORIDA · PI BURKE, SARA N · 2021 to 2021
$2.0M
Interactions of Perirhinal Tau Pathology and Aging in Cognitive DysfunctionR21AG058240 · NIA · UNIVERSITY OF FLORIDA · PI BIZON, JENNIFER LYNN, BURKE, SARA N · 2018 to 2019
$419k
Hippocampal and dopaminergic mechanisms of novelty detection underlying cognitive resilience in agingK99AG058786 · NIA · UNIVERSITY OF FLORIDA · PI JOHNSON, SARAH ANNE · 2018 to 2019
$172k
NIA NIH HHS K99 AG058786NIA NIH HHS R01 AG049722NIA NIH HHS R21 AG058240NIA NIH HHS RF1 AG049722
6 · The paper itself

Abstract

Mnemonic similarity task performance, in which a known target stimulus must be distinguished from similar lures, is supported by the hippocampus and perirhinal cortex. Impairments on this task are known to manifest with advancing age. Interestingly, disrupting hippocampal activity leads to mnemonic discrimination impairments when lures are novel, but not when they are familiar. This observation suggests that other brain structures support discrimination abilities as stimuli are learned. The prefrontal cortex (PFC) is critical for retrieval of remote events and executive functions, such as working memory, and is also particularly vulnerable to dysfunction in aging. Importantly, the medial PFC is reciprocally connected to the perirhinal cortex and neuron firing in this region coordinates communication between lateral entorhinal and perirhinal cortices to presumably modulate hippocampal activity. This anatomical organization and function of the medial PFC suggests that it contributes to mnemonic discrimination; however, this notion has not been empirically tested. In the current study, rats were trained on a LEGO object-based mnemonic similarity task adapted for rodents, and surgically implanted with guide cannulae targeting prelimbic and infralimbic regions of the medial PFC. Prior to mnemonic discrimination tests, rats received PFC infusions of the GABA

Indexed as

Perirhinal CortexTask Performance and AnalysisAnimalsMemory, Short-TermPrefrontal CortexRatsRodentiaaginginfralimbic cortexmedial temporal lobemuscimolobject recognitionprelimbic cortex

Identifiers

PMID33606338
PMCPMC9343235
OpenAlexW3133441613

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.