Evidence map›Paper›PMID 32300165›Full record

ArticleScientific reports2020

Possible association between spindle frequency and reversal-learning in aged family dogs.

Ivaylo Borislavov Iotchev, Dóra Szabó, Anna Kis, Enikő Kubinyi

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

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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

4 authors at 2 institutions in 1 country.

Ivaylo Borislavov IotchevDepartment of Ethology, Eötvös Loránd University, Budapest, Hungary. ivaylo.iotchev@gmail.com.ORCID http://orcid.org/0000-0001-6171-6078
Dóra SzabóDepartment of Ethology, Eötvös Loránd University, Budapest, Hungary.ORCID http://orcid.org/0000-0001-7902-7713
Anna KisInstitute of Cognitive Neuroscience and Psychology, Research Centre for Natural Sciences, Budapest, Hungary.
Enikő KubinyiDepartment of Ethology, Eötvös Loránd University, Budapest, Hungary.ORCID http://orcid.org/0000-0002-4468-9845
Eötvös Loránd University · HUInstitute of Cognitive Neuroscience and Psychology · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In both humans and dogs sleep spindle occurrence between acquisition and recall of a specific memory correlate with learning performance. However, it is not known whether sleep spindle characteristics are also linked to performance beyond the span of a day, except in regard to general mental ability in humans. Such a relationship is likely, as both memory and spindle expression decline with age in both species (in dogs specifically the density and amplitude of slow spindles). We investigated if spindle amplitude, density (spindles/minute) and/or frequency (waves/second) correlate with performance on a short-term memory and a reversal-learning task in old dogs (> 7 years), when measurements of behavior and EEG were on average a month apart. Higher frequencies of fast (≥ 13 Hz) spindles on the frontal and central midline electrodes, and of slow spindles (≤ 13 Hz) on the central midline electrode were linked to worse performance on a reversal-learning task. The present findings suggest a role for spindle frequency as a biomarker of cognitive aging across species: Changes in spindle frequency are associated with dementia risk and onset in humans and declining learning performance in the dog.

Indexed as

AgingAnimalsCognitionDogsElectroencephalographyHumansMemory, Short-TermMental RecallPolysomnographyReversal LearningSleepSleep Stages

Identifiers

PMID32300165
PMCPMC7162895
OpenAlexW3016919217

What OpenQuestion holds

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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.