Differential Effects of Aging on Two Verbal Fluency Tasks

1993 ◽  
Vol 76 (2) ◽  
pp. 465-466 ◽  
Author(s):  
Rachel Tomer ◽  
Bonnie E. Levin

The effect of age on verbal fluency was studied in 84 healthy volunteers, ages 45 to 91 years, who performed letter-fluency and semantic-fluency tasks. Older subjects (75 to 91 yr.) performed as well as younger (50 to 64 yr.) on letter fluency but did significantly worse on semantic category fluency. This pattern is similar to that observed in Alzheimer-type dementia.

1998 ◽  
Vol 4 (2) ◽  
pp. 137-143 ◽  
Author(s):  
Angela K. Troyer ◽  
Morris Moscovitch ◽  
Gordon Winocur ◽  
Larry Leach ◽  
and Morris Freedman

Two components of verbal fluency performance—clustering (i.e., generating words within subcategories) and switching (i.e., shifting between subcategories)—were examined in patients with dementia of the Alzheimer type (DAT), patients with dementia with Parkinson's disease (DPD), nondemented patients with Parkinson's disease (NPD), and demographically matched controls. The DAT and DPD groups were impaired in the number of words generated on both phonemic and semantic fluency. The DAT group produced smaller clusters on both tasks and switched less often on semantic fluency than controls. The DPD group switched less often on both tasks and produced smaller clusters on phonemic fluency than controls. The NPD group was not impaired on any fluency variable. Thus, the total number of words generated on phonemic and semantic fluency did not discriminate the dementia groups from their respective control groups, but measures of clustering and switching did. This differential pattern of performance provides evidence for the potential usefulness of measures of switching and clustering in the assessment of dementia. (JINS, 1998, 4, 137–143.)


2011 ◽  
Vol 5 (2) ◽  
pp. 78-84 ◽  
Author(s):  
Helenice Charchat-Fichman ◽  
Rosinda Martins Oliveira ◽  
Andreza Morais da Silva

Abstract The most used verbal fluency paradigms are semantic and letter fluency tasks. Studies suggest that these paradigms access semantic memory and executive function and are sensitive to frontal lobe disturbances. There are few studies in Brazilian samples on these paradigms. Objective: The present study investigated performance, and the effects of age, on verbal fluency tasks in Brazilian children. The results were compared with those of other studies, and the consistency of the scoring criteria data is presented. Methods: A sample of 119 children (7 to 10 years old) was submitted to the three phonemic fluency (F, A, M) tasks and three semantic fluency (animals, clothes, fruits) tasks. The results of thirty subjects were scored by two independent examiners. Results: A significant positive correlation was found between the scores calculated by the two independent examiners. Significant positive correlations were found between performance on the semantic fluency task and the phonemic fluency task. The effect of age was significant for both tasks, and a significant difference was found between the 7- and 9-year-old subjects and between the 7- and 10-year-old subjects. The 8-year-old group did not differ to any of the other age groups. Conclusion: The pattern of results was similar to that observed in previous Brazilian and international studies.


2021 ◽  
Author(s):  
Rochele Paz Fonseca ◽  
Karine Marcotte ◽  
Lilian C. Hubner ◽  
Nicolle Zimmermann ◽  
Tânia Maria Netto ◽  
...  

AbstractThe purpose of this study was to examine the impact of age and education on the neural and behavioral correlates of verbal fluency. Forty-eight healthy adult participants were included: high-educated young and elderly, low-educated young and elderly. Participants performed semantic and phonemic and a control task during fMRI scanning. The phonemic fluency data showed an education effect across age groups. As for the semantic fluency data, there was an education effect only in young participants. The second-level fMRI results showed, in phonemic fluency, a main effect of age in the left posterior cingulate, superior temporal gyrus (STG) and right caudate, whereas the main effect of education involved activation in the right semantic fluency, there were a main effect of age in the left paracentral lobule and posterior cingulate, a main effect of education in the left claustrum and an interaction in the right claustrum and STG and the hippocampus bilaterally.


2021 ◽  
Vol 37 (3) ◽  
pp. 449-458
Author(s):  
María del Pino Sánchez López ◽  
Francisco Román Lapuente ◽  
María J. García-Rubio

La tarea de fluidez verbal (FV) es una medida de la flexibilidad cognitiva y la estrategia de búsqueda dentro del léxico y el tema semántico. En este trabajo, se probó el uso de estrategias organizativas, es decir, agrupación y cambio en la fluidez semántica y fonológica en niños españoles sanos divididos en dos grupos: el grupo 1 de niños más pequeños (de 8 a 9 años) y el grupo 2 de niños mayores (de 10 años de edad) –11) introducción de diferentes letras (F, A, S y P, M, R) y categorías semánticas (animales y comidas o bebidas). La fluidez semántica fue mayor que la fluidez fonológica en ambos grupos de edad. Además, los niños mayores mostraron un mejor desempeño de ambas fluencias que los niños más pequeños específicamente para el grupo de letras FAS, la letra M y todas las categorías semánticas utilizadas. A partir de los análisis fonológicos, los niños más pequeños evocaron más palabras con el grupo de letras PMR que con el grupo FAS. Además, solo se observó una mejora en la fluidez semántica asociada con la categoría del animal frente a las comidas y bebidas en el grupo de niños más pequeños. Con respecto a las estrategias organizativas, los niños mayores usaron más interruptores específicamente en el grupo FAS y más grupos para la categoría de comidas o bebidas en comparación con el grupo de niños mayores. Para finalizar, las relaciones entre el número de palabras evocadas y el número de clústeres y conmutadores para ambas tareas de FV fueron significativas y positivas. Estos datos sugieren que el tipo de letra y la categoría semántica empleada en la evaluación de FV modulan el rendimiento de fluidez verbal en ambos grupos de edad. The verbal fluency (VF) task is a measure of cognitive flexibility and search strategy within the lexicon and semantic topic. In this work the use of organizational strategies, i.e., clustering and switching in semantic and phonological fluency was tested in healthy Spanish children divided in two groups: group 1 of younger children (age 8–9) and group 2 of older children (age 10–11) introducing different letters (F, A, S and P, M, R) and semantic categories (animals and meals or drinks). Semantic fluency was greater than phonological fluency in both age groups. In addition, older children showed better performance of both fluencies than younger children specifically for FAS letters group, M letter and all of semantic categories used. From the phonological analyses, younger children evoked more word with the PMR letter group than with the FAS one. Moreover, an improvement of semantic fluency associated with the animal’s category faced to meals and drink was observed only in the younger children group. In respect to organizational strategies, older children used more switches specifically in FAS group and more clusters for the meals or drinks category compared with the older children group. To finish, the relationships between the number of words evoked and the number of clusters and switches for both VF tasks were significant and positive. These data suggest that the type of letter and the semantic category employed in the VF evaluation modulate the verbal fluency performance in both groups of age


CoDAS ◽  
2014 ◽  
Vol 26 (6) ◽  
pp. 434-438 ◽  
Author(s):  
Isadora Machado Monteiro dos Santos ◽  
Júlia Santos Costa Chiossi ◽  
Alexandra Dezani Soares ◽  
Letícia Neves de Oliveira ◽  
Brasília Maria Chiari

PURPOSE: To compare the performance of hearing-impaired and normal-hearing people on phonologic and semantic verbal fluency tests. METHODS: A cross-sectional study was conducted with 48 hearing-impaired adults and 42 individuals (control group) with no hearing or language complaints. Sociodemographic data were collected, as well as the characteristics of hearing loss and of the electronic auditory device (hearing aids or cochlear implant), when relevant. Verbal fluency was tested in two different tasks: by semantic category (animals) and by phonology (letter F). RESULTS: Educational level has influenced the results of fluency tests in both groups, with more evidence in the hearing-impaired subjects (p<0.001). Hearing-impaired subjects showed worse performance in verbal fluency tests when compared to normal-hearing people in groups with up to 10 years of schooling. In the comparison of performance in the two tests, both groups showed better results in the semantic fluency task. CONCLUSION: The hearing-impaired subjects with low educational level evoked fewer words in semantic and phonologic verbal fluency tests in comparison to normal-hearing subjects. Educational level is a relevant issue to the study of verbal fluency in deaf and hearing-impaired people.


1956 ◽  
Vol 17 (2) ◽  
pp. 183-189 ◽  
Author(s):  
Peter Hartocollis ◽  
Donald M. Johnson

2019 ◽  
Vol 35 (1) ◽  
pp. 22-30
Author(s):  
M -J Chasles ◽  
A Tremblay ◽  
F Escudier ◽  
A Lajeunesse ◽  
S Benoit ◽  
...  

Abstract Introduction The Verbal Fluency Test (VF) is commonly used in neuropsychology. Some studies have demonstrated a marked impairment of semantic VF compared to phonemic VF in Alzheimer’s disease (AD). Since amnestic Mild Cognitive Impairment (aMCI) is associated with increased risk of conversion to incident AD, it is relevant to examine whether a similar impairment is observed in this population. The objective of the present empirical study is to compare VF performance of aMCI patients to those of AD and elderly controls matched one-to-one for age and education. Method Ninety-six participants divided into three equal groups (N = 32: AD, aMCI and Controls) were included in this study. Participants in each group were, on average, 76 years of age and had 13 years of education. A repeated measures ANOVA with the Group (AD, aMCI, NC) as between-subject factor and the Fluency condition (“P” and “animals”) as within-subject factor was performed. T-tests and simple ANOVAs were also conducted to examine the interaction. Results There was a significant interaction between the groups and the verbal fluency condition. In AD, significantly fewer words were produced in both conditions. In contrast, participants with aMCI demonstrated a pattern similar to controls in the phonemic condition, but generated significantly fewer words in the semantic condition. Conclusion These results indicate a semantic memory impairment in aMCI revealed by a simple, commonly-used neuropsychological test. Future studies are needed to investigate if semantic fluency deficits can help predict future conversion to AD.


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