Evidence map›Paper›PMID 37075412›Full record

ArticleCoDAS2023

Clustering and switching analysis of verb fluency in individuals with Alzheimer's disease.

Bárbara Costa Beber, Franceia Veiga Liedtke, Felipe Schroeder de Oliveira, Lucas Müller-Silveira, Emily Viega Alves, Márcia Lorena Fagundes Chaves, Jerusa Fumagalli de Salles

Open access · diamondAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in CoDAS, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.4field-weighted citation impact, top 38% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. Review
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 1 country.

Bárbara Costa BeberDepartamento de Fonoaudiologia, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA - Porto Alegre (RS), Brasil.ORCID http://orcid.org/0000-0003-1781-3625
Franceia Veiga LiedtkePrograma de Pós-graduação em Psicologia, Universidade Federal do Rio Grande do Sul - UFRGS - Porto Alegre (RS), Brasil.ORCID http://orcid.org/0000-0002-5252-0337
Felipe Schroeder de OliveiraPrograma de Pós-graduação em Psicologia, Universidade Federal do Rio Grande do Sul - UFRGS - Porto Alegre (RS), Brasil.ORCID http://orcid.org/0000-0002-3806-1744
Lucas Müller-SilveiraPrograma de Pós-graduação em Psicologia, Universidade Federal do Rio Grande do Sul - UFRGS - Porto Alegre (RS), Brasil.ORCID http://orcid.org/0000-0003-2178-744X
Emily Viega AlvesCurso de Fonoaudiologia, Universidade Federal de Ciências da Saúde de Porto Alegre - UFCSPA - Porto Alegre (RS), Brasil.ORCID http://orcid.org/0000-0003-4800-3908
Márcia Lorena Fagundes ChavesDepartamento de Medicina Interna, Programa de Pós-graduação em Medicina - Ciências Médicas, Universidade Federal do Rio Grande do Sul - UFRGS - Porto Alegre (RS), Brasil.ORCID http://orcid.org/0000-0002-1940-4043
Jerusa Fumagalli de SallesPrograma de Pós-graduação em Psicologia, Universidade Federal do Rio Grande do Sul - UFRGS - Porto Alegre (RS), Brasil.ORCID http://orcid.org/0000-0003-0877-488X
Universidade Federal do Rio Grande do Sul · BRUniversidade Federal de Ciências da Saúde de Porto Alegre · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate verb fluency performance in individuals with Alzheimer's disease compared with healthy older adults by analyzing total correct responses, number of clusters, average cluster size, and number of switches.

methodsThis is a case-control study of 39 healthy older adults and 29 older adults with a diagnosis of Alzheimer's disease. Verb fluency performance was analyzed in terms of total number of correct verbs retrieved, number of clusters, average cluster size, and number of switches. To obtain the study outcomes, we previously conducted a procedure for categorization of the verbs that would compose the clusters. The classification of verbs was adapted for this study, including assessment by raters and analysis of inter-rater reliability.

resultsIndividuals with Alzheimer's disease showed significantly poorer performance than healthy controls in the number of switches and total number of correct verbs retrieved. The two groups did not differ significantly in the other measures.

conclusionIn this study, individuals with Alzheimer's disease showed impaired verb fluency, characterized by a reduced number of verbs retrieved and fewer transitions between verb categories. The findings suggest that, in Alzheimer's disease, verb fluency is more sensitive to cognitive deficits resulting from executive dysfunction than from semantic disruption.

Indexed as

Alzheimer DiseaseAgedCase-Control StudiesCluster AnalysisHumansNeuropsychological TestsReproducibility of ResultsSemantics

Identifiers

PMID37075412
PMCPMC10145992
OpenAlexW4366222269

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.