Evidence map›Paper›PMID 32973983›Full record

ArticleDementia & neuropsychologia

Verbal fluency in Alzheimer's disease and mild cognitive impairment in individuals with low educational level and its relationship with reading and writing habits.

Bruna Tessaro, Andressa Hermes-Pereira, Lucas Porcello Schilling, Rochele Paz Fonseca, Renata Kochhann, Lilian Cristine Hübner

Abstract read
In one paragraph

Article in Dementia & neuropsychologia. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
–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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Multivariate word properties in fluency tasks reveal markers of Alzheimer's dementia.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
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  4. Associations of category fluency clustering performance withJournal of the International Neuropsychological Society : JINS · 2024
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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.

Bruna TessaroLinguistics Department, Pontifícia Universidade Católica do Rio Grande do Sul - Porto Alegre, RS, Brazil.ORCID 0000-0002-1420-3269
Andressa Hermes-PereiraPsychology Department, Universidade Federal do Rio Grande do Sul - Porto Alegre, RS, Brazil.ORCID 0000-0002-2110-2095
Lucas Porcello SchillingBrain Institute - Porto Alegre, RS, Brazil.ORCID 0000-0002-9923-6982
Rochele Paz FonsecaPsychology Department, Pontifícia Universidade Católica do Rio Grande do Sul - Porto Alegre, RS, Brazil.ORCID 0000-0001-6767-8439
Renata KochhannPsychology Department, Pontifícia Universidade Católica do Rio Grande do Sul - Porto Alegre, RS, Brazil.ORCID 0000-0002-6328-8131
Lilian Cristine HübnerLinguistics Department, Pontifícia Universidade Católica do Rio Grande do Sul - Porto Alegre, RS, Brazil.ORCID 0000-0002-7876-2211

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Verbal fluency (VF) has contributed to building cognitive maps as well as differentiating healthy populations from those with dementia.

objectivesTo compare the performance of healthy controls and patients with mild cognitive impairment (MCI) and Alzheimer's disease (AD) in two semantic VF tasks (animals/clothes) and a phonemic VF task (letter P). Also, to analyze the relationship between the frequency of reading and writing habits (FRWH) and VF in individuals with low educational level.

methodsSixty-seven older adults aged 60-80 years and with 2-8 years of schooling were divided into three groups: controls (n=25), older adults with MCI (n=24), and older adults with AD (n=18). We analyzed the type, mean size, and number of clusters, switches, intersections, and returns. A post-hoc single-factor ANOVA analysis was conducted to verify differences between groups.

resultsTotal words in the phonemic VF and the animal category discriminated the three groups. Regarding the animal category, AD patients performed worse than controls in the total number of words, taxonomic clusters, returns, and number of words remembered. We found a moderate correlation between FRWH and total number of words in the phonemic fluency.

conclusionsSemantic (animate) and phonemic (total words) VF differentiated controls and clinical groups from each other - the phonemic component was more related to FRWH than the semantic one. The phonemic VF seems to be more related to cognitive reserve. VF tasks, considering total words and cluster analyses, are a valuable tool to test healthy and cognitively impaired older adults who have a low educational level.

Indexed as

Alzheimer’s DiseasefluencyhabitsMild Cognitive Impairmentreadingschoolingwriting

Identifiers

PMID32973983
PMCPMC7500813

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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.