Evidence map›Paper›PMID 31600312›Full record

ArticlePloS one2019

Inter-method and anatomical correlates of episodic memory tests in the Alzheimer's Disease spectrum.

Felipe Kenji Sudo, Andrea Silveira de Souza, Claudia Drummond, Naima Assuncao, Alina Teldeschi, Natalia Oliveira, Fernanda Rodrigues, Gustavo Santiago-Bravo, Victor Calil, Gabriel Lima and 5 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
1.0field-weighted citation impact, top 24% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 17 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

15 authors at 2 institutions in 1 country.

Felipe Kenji SudoD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.ORCID 0000-0003-4738-1368
Andrea Silveira de SouzaD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Claudia DrummondD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Naima AssuncaoD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Alina TeldeschiD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Natalia OliveiraD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Fernanda RodriguesD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Gustavo Santiago-BravoD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.ORCID 0000-0003-0001-363X
Victor CalilD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Gabriel LimaD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Pilar ErthalD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Gabriel BernardesD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Marina MonteiroD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Fernanda Tovar-MollD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
Paulo MattosD'Or Institute for Research and Education, Rio de Janeiro, RJ, Brazil.
D’Or Institute for Research and Education · BRUniversidade Federal do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEpisodic memory impairments have been described as initial clinical findings in the Alzheimer's Disease (AD) spectrum, which could be associated with the presence of early hippocampal dysfunction. However, correlates between performances in neuropsychological tests and hippocampal volumes in AD were inconclusive in the literature. Divergent methods to assess episodic memory have been depicted as a major source of heterogeneity across studies.

methodsWe examined correlates among performances in three different delayed-recall tasks (Rey-Auditory Verbal-Learning Test-RAVLT, Logical Memory and Visual Reproduction subtests from the Wechsler Memory Scale) and fully-automated volumetric measurements of the hippocampus (estimated using Neuroquant®) of 83 older subjects (47 controls, 27 Mild Cognitive Impairment individuals and 9 participants with Dementia due to AD).

resultsInter-method correlations of episodic memory performances were at most moderate. Scores in the RAVLT predicted up to 48% of variance in HOC (Hippocampal Occupancy Score) among subjects in the AD spectrum. DISCUSSION: Tests using different stimuli (verbal or visual) and presenting distinct designs (word list, story or figure learning) may assess divergent aspects in episodic memory, with heterogeneous anatomical correlates.

conclusionsDifferent episodic memory tests might not assess the same construct and should not be used interchangeably. Scores in RAVLT may correlate with the presence of neurodegeneration in AD.

Indexed as

Memory, EpisodicAgedAlzheimer DiseaseFemaleHippocampusHumansMaleMiddle AgedNeuropsychological Tests

Identifiers

PMID31600312
PMCPMC6786578
OpenAlexW2979328694

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.