The Verbal Fluency Test as a Tool for the Differential Diagnosis of Dementia and Mild Cognitive Impairment, As Against Normal Ageing: a Research Review Study

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Test verbální fluence jako nástroj diferenciální diagnostiky demence a mírné kognitivní poruchy od fyziologického stárnutí: přehledová studie

Demenci lze ve svých důsledcích chápat jako poruchu lingvistickou, neurogenní a kognitivní. Jelikož se s prodlužující průměrnou délkou života zvyšuje i počet osob s demencí, je třeba věnovat včasné diagnostice zvýšenou pozornost. Detailní zhodnocení nejen jazykových procesů může poskytnout důležité informace lékařům i rodinným příslušníkům, a to zejména v nastavení plánu adekvátní terapie. Výsledky testu verbální fluence reflektují kromě celkové úrovně jazykových schopností i funkční integritu exekutivních funkcí a sémantické paměti. Vzhledem k jednoduchosti a časové nenáročnosti se test verbální fluence jeví jako vhodný nástroj pro diferenciální diagnostiku demence, mírné kognitivní poruchy a fyziologického stárnutí. Tento přehledový článek shrnuje dosavadní poznatky o jeho využití, přičemž pozornost je věnována především strategiím shlukování a přepínání, které se stále více dostávají do popředí zájmu odborné veřejnosti.

Klíčová slova:

Test verbální fluence, shlukování a přepínání, demence, mírná kognitivní porucha

Authors: Mgr. Zapletalová Michaela ¹; Prof. Mgr. Vitásková Kateřina, Ph.D. ¹
Authors‘ workplace: Department of Special Education Studies, Faculty of Education, Palacký University in Olomouc ¹
Published in: Listy klinické logopedie 2025; 9(2): 31-38
doi: https://doi.org/10.36833/lkl.2025.024

Overview

Dementia can ultimately be understood as a linguistic, neurogenic, and cognitive disorder. With the increasing average life expectancy, the number of individuals affected by dementia continues to rise, underscoring the importance of early and accurate diagnosis. A detailed assessment of not only language processes can provide valuable information to both healthcare professionals and family members, particularly in developing an appropriate therapeutic plan. Results of the verbal fluency test reflect not only the overall level of language abilities, but also the functional integrity of executive functions and semantic memory. Due to its simplicity and time efficiency, the verbal fluency test appears to be a suitable tool for the differential diagnosis of dementia, mild cognitive impairment, and normal ageing. This review article summarizes current findings on its clinical utility, with particular attention given to clustering and switching strategies.

Keywords:

verbal fluency test, clustering and switching, dementia, mild cognitive impairment

Sources

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