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Longitudinal Verbal Fluency in Normal Aging, Preclinical, and Prevalent Alzheimer’s Disease
Open accessAbstract
Background: Few longitudinal studies evaluate differences in patterns of change of category compared to letter fluency across the spectrum of cognitive impairment. Methods: We compared change in category (animal and supermarket) and letter (F, A, S) fluency among 239 participants in 3 groups: remained cognitively normal throughout follow-up (n = 96), developed Alzheimer’s Disease (AD; preclinical AD, n = 21), and with AD at initial testing (prevalent AD, n = 122). Results: At baseline, prevalent and preclinical AD groups scored lower on animal than letter fluency. On all fluency measures, the prevalent AD declined faster than other groups (all P < .0001), and preclinical AD declined faster than unimpaired (all P ≤ .02). Overall, animal fluency declined faster than letter fluency; animal fluency declined significantly faster than letter fluency among cognitively normal and prevalent AD participants. Conclusion: Greater longitudinal declines in category compared to letter fluency are consistent with cross-sectional studies. Steeper declines on both fluency measures distinguish preclinical AD from cognitively unimpaired individuals.
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“Declines in global cognition and executive function markedly raise the risk of death, dementia, and functional disability.39,40,41”
From Sex differences in cognitive decline among US adults (2021) · cites this paper as [40]
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Cites
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“It has further been shown that category fluency distinguishes normal controls from participants diagnosed as either cognitively impaired but not demented (CIND) or as mild cognitive impairment (MCI).(9,10) Finally, baseline impairments in category fluency predict who subsequently will develop AD.”
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“Our findings are consistent with the suggestion that the preclinical individuals may already have deterioration in the temporal/parietal area, since animal naming would be associated with the temporal/parietal part of the brain, while FAS would be associated with the frontal lobes.(20,21) We add 2 further comments abo…”
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“Our cross-sectional findings are consistent with numerous reports that have compared fluency measures at a single testing between participants with AD and unimpaired participants(1-7) and between participants with MCI or preclinical AD and unimpaired participants.(2,9-12) In these cross-sectional analyses, we found th…”
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“One study found that participants with AD showed more rapid decline at 1-year followup in category fluency compared to cognitively intact participants, while showing little change in letter fluency in the same time period.14 In the MoVIES study, there was significant decline over 2 years on categorical but not on lett…”
BackgroundInfluential
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- 10.1212/01.WNL.0000147470.58328.50 · DOI · Paper page
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- Singer JD, 2003, Modeling Change and Event Occurrence
- 10.1037/0882-7974.17.3.435 · DOI
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Verbal Fluency: Language or Executive Function Measure?
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“Other authors have found that letter fluency was worse in several neurological disorders, including TBI (Henry & Crawford, 2004b), Alzheimer disease (Clark et al., 2009), and Parkinson disease (Henry & Crawford, 2004c).”
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“MMSE is a 30-point questionnaire providing measures of orientation, encoding (immediate memory), short-term memory as well as language functioning; Phonemic and Semantic Fluency test are commonly used verbal tasks in which the subject is requested to produce, in 1min, words relevant to a given category; they allow a q…”
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BackgroundDisease Tracking Markers for Alzheimer's Disease at the Prodromal (MCI) Stage
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“The CFT is a typical neuropsychological test used to assess language and executive functions, search strategies, and long-term memory (Ruff et al., 1997; Mathuranath et al., 2003; Clark et al., 2009).”
BackgroundFabbri, E., An, Y., Zoli, M., Tanaka, T., Simonsick, E. M., Kitner‐Triolo, M. H., Studenski, S. A., Resnick, S. M., & Ferrucci, L. (2016) · Journal of the American Geriatrics Society · doi:10.1111/jgs.14092 · Cited by 123
“Previous studies showed that verbal fluency declines with normal aging, with some evidence showing a greater effect of age on category than letter fluency.(32,33) Variations in executive function and processing speed have been associated with pathological brain changes, in particular increase in periventricular white…”
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Self-citationConnected Language in Late Middle-Aged Adults at Risk for Alzheimer’s Disease
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“Test–retest reliability for semantic verbal fluency was reported in two studies only (Bird, Papadopoulou, Ricciardelli, Rossor, & Cipolotti, 2004; Clark et al., 2009), one of them using a very short length (one month) between both assessments.”
BackgroundBlood Pressure and Cognitive Decline Over 8 Years in Middle-Aged and Older Black and White Americans
Levine, D. A., Galecki, A. T., Langa, K. M., Unverzagt, F. W., Kabeto, M. U., Giordani, B., Cushman, M., McClure, L. A., Safford, M. M., & Wadley, V. G. (2019) · Hypertension · doi:10.1161/hypertensionaha.118.12062 · Cited by 91
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“Clark and colleagues(1) suggested that decline in letter and category verbal fluency occurs but, generally, performance on letter fluency is higher than on category fluency.”
BackgroundResultFiliou, R.-P., Bier, N., Slegers, A., Houzé, B., Belchior, P. D. C., & Brambati, S. M. (2019) · Aphasiology · doi:10.1080/02687038.2019.1608502 · Cited by 100
“…that the presence of language deficits could also be a part of its clinical manifestation as they have been consistently reported not only in the early stages of AD (Ahmed, Haigh, de Jager, & Garrard, 2013), but also in mild cognitive impairment (MCI) (Clark et al., 2009; Taler & Phillips, 2008).”
BackgroundSocial network changes among older Europeans: the role of gender
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“Due to outliers in a small number of cases, scores above 45 were recoded as 45 (Clark et al. 2009).”
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“001 – replicating previous work on verbal fluency and aging (Clark et al., 2009; Park et al., 2002).”
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“These findings are consistent with work in MCI subjects who routinely show decrements in semantic processing (Joubert et al. 2010) and in particular, greater declines in category vs. letter fluency (Murphy et al. 2006, Clark et al. 2009).”
BackgroundResultFully Automatic Speech-Based Analysis of the Semantic Verbal Fluency Task
König, A., Linz, N., Tröger, J., Wolters, M., Alexandersson, J., & Robert, P. (2018) · Dementia and Geriatric Cognitive Disorders · doi:10.1159/000487852 · Cited by 77
“SVF performance can distinguish people with dementia from healthy controls and people with mild cognitive impairment [25-29] , and additionally can be sensitive to early phases of”
BackgroundValidation of the Face Name Associative Memory Exam in Cognitively Normal Older Individuals
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“typically found performance on tests of episodic memory, semantic knowledge, and executive functioning to discriminate between CN and preclinical AD individuals (Albert, Moss, Tanzi, & Jones, 2001; Backman, Jones, Berger, Laukka, & Small, 2005; Blacker et al., 2007; Clark et al., 2009; Collie & Maruff, 2000).”
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“Test scores have been shown to discriminate persons with normal cognitive function from those who have mild cognitive impairment and more severe forms of cognitive impairment, such as Alzheimer disease (37, 38).”
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“It is considered a measure of executive functioning, but also includes other processes, such as semantic memory and processing speed (Clark et al., 2009; Haugrud, Crossley, & Vrbancic 2011).”
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“This test measures executive functioning and language ability (Clark et al., 2009; Dal Bianco et al., 2013).”
BackgroundAnalysis of verbal fluency ability in amnestic and non-amnestic mild cognitive impairment.
Weakley, A., Schmitter-Edgecombe, M., & Anderson, J. W. (2013) · Archives of Clinical Neuropsychology · doi:10.1093/arclin/act058 · Cited by 68
Why do older adults have difficulty with semantic fluency?
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“However, at least one longitudinal study demonstrates that, for typically aging individuals over the course of about 6 years, semantic fluency declined more with age than phonemic fluency, replicating the pattern observed in cross-sectional studies (Clark et al., 2009).”
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BackgroundInfluentialVerbal Fluency Patterns in Mild Cognitive Impairment and Alzheimer's Disease
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“The CFT is a typical neuropsychological test used to examine speech production, and performance of the CFT declines with normal aging [63, 64].”
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“As a result, subtle changes in language have been observed years or even decades before dementia is diagnosed (Snowdon et al., 1996; Garrard et al., 2004; Cuetos et al., 2007; Clark et al., 2009; Le et al., 2011; Ahmed et al., 2013a).”
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“In addition, studies have shown that category fluency declines at a faster rate than letter fluency in individuals with AD (Clark et al., 2009).”
BackgroundHamel, R. E. G., Köhler, S., Sistermans, N., Koene, T., Pijnenburg, Y. A. L., van der Flier, W. M., Scheltens, P., Aalten, P., Verhey, F. R. J., Visser, P. J., et al. (2014) · Psychological Medicine · doi:10.1017/s0033291714002645 · Cited by 60
“Studies with longer follow-up reported differences in episodic memory, verbal fluency and abstract thinking (a part of executive functioning) nine (Amieva et al. 2005) to five (only verbal fluency reported) (Clark et al. 2009) years prior to AD dementia diagnosis.”
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“Literature proposes that, compared to phonemic fluency, category fluency is superior in identifying individuals who subsequently develop AD (Clark et al., 2009; Fernaeus, Ostberg, Hellstrom, & Wahlund, 2008).”
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Semantic verbal fluency impairment is detectable in patients with subjective cognitive decline
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“and semantic dementia (SD)—both impact the temporal lobes early in the disease course—show disproportionally larger deficits in SVF compared to PVF (Clark et al., 2009; Murphy, Rich, & Troyer, 2006; Rinehardt et al., 2014; Rogers, Ivanoiu, Patterson, & Hodges, 2006).”
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“…in individuals with MCI have revealed reductions as compared with healthy controls, both cross-sectionally (Clark et al., 2009; Doi, 2013; Levinoff et al., 2006; Nutter-Upham et al., 2008; Östberg et al., 2005) and longitudinally (Chen et al., 2001; Clark et al., 2009; Grober et al., 2008).”
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Alogia and formal thought disorder: differential patterns of verbal fluency task performance.
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“…may exhibit relatively poorer performance on category fluency than would be expected based on their letter fluency performance, as seen in studies of Alzheimer’s patients (e.g. Clark et al., 2009; Rascovsky et al., 2007; Jones et al., 2006; Rogers et al., 2006; Sherman and Massman, 1999).”
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“The absolute verbal fluency and executive function of the participants were examined (Clark et al., 2009; Sutin et al., 2022).”
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“…normal aging, individuals between the age of 50–70 will typically recall 21 animals, and individuals aged 70 and older recall approximately 18 animals (Price et al., 2012), which is higher than individuals with a-MCI and AD, who were able to list 15 and 8 animals, respectively (Clark et al., 2009).”
BackgroundInfluentialSanabria, Á., Alegret, M., Rodríguez‐Gómez, O., Valero, S., Sotolongo‐Grau, Ó., Monté, G. C., Ruiz, C. A., Espinosa, A., Ortega, G., Pérez‐Cordón, A., et al. (2018) · Scientific Reports · doi:10.1038/s41598-018-21644-y · Cited by 51
Mirandez, R. M., Aprahamian, I., Talib, L. L., Forlenza, O. V., & Radanovic, M. (2017) · International Psychogeriatrics · doi:10.1017/s1041610217000102 · Cited by 50
“…fluency, the most frequently studied category, our results reproduce those described in several studies in different languages (Cunje et al., 2007; Clark et al., 2009; Kawano et al., 2010; Malek-Ahmadi et al., 2011; Delgado-Derio et al., 2012; Eppig et al., 2012; López-Higes et al., 2014),…”
ResultClark, D. G., Kapur, P., Geldmacher, D., Brockington, J., Harrell, L., DeRamus, T. P., Blanton, P., Lokken, K., Nicholas, A. P., & Marson, D. (2014) · Cortex; a journal devoted to the study of the nervous system and behavior · doi:10.1016/j.cortex.2013.12.013 · Cited by 44
Wu, Z.-M., Woods, R., Wolfe, R., Storey, E., Chong, T., Shah, R., Orchard, S., McNeil, J., Murray, A., & Ryan, J. (2021) · Alzheimer's & Dementia · doi:10.1002/dad2.12180 · Cited by 43
The Role of Verb Fluency in the Detection of Early Cognitive Impairment in Alzheimer’s Disease
Alegret, M., Peretó, M., Pérez, A., Valero, S., Espinosa, A., Ortega, G., Hernández, I., Mauleon, A., Rosende-Roca, M., Vargas, L., et al. (2018) · Journal of Alzheimer's Disease · doi:10.3233/jad-170826 · Cited by 42
“the time of conversion was taken into account in the Cox Regression analyses, the verb fluency only showed a significant effect on the faster conversion from CH to MCI, but not from MCI to dementia, findings that concur with results of previous studies using category [37,38,66] and letter verbal fluencies [38,66].”
Disruption of Semantic Network in Mild Alzheimer’s Disease Revealed by Resting-State fMRI
Mascali, D., DiNuzzo, M., Serra, L., Mangia, S., Maraviglia, B., Bozzali, M., & Giove, F. (2017) · Neuroscience · doi:10.1016/j.neuroscience.2017.11.030 · Cited by 49
“…in FC between a region involved in phonemic processing (i.e., planum temporale) and a region involved in lexical/semantic processing (i.e., pMTG), might explain previous results showing less impaired phonemic fluency than category fluency in AD patients (Henry et al., 2004; Clark et al., 2009).”
ResultKraan, C., Stolwyk, R., & Testa, R. (2013) · Applied neuropsychology. Adult · doi:10.1080/09084282.2012.670157 · Cited by 42
Hsiao, C.-C., Yang, A.-M., Wang, C.-K., & Lin, C.-Y. (2023) · Environmental Research · doi:10.1016/j.envres.2023.116860 · Cited by 39
Eggenberger, P., Bürgisser, M., Rossi, R. M., & Annaheim, S. (2021) · Frontiers in Aging Neuroscience · doi:10.3389/fnagi.2021.585904 · Cited by 44
Wei, B., Dong, Q., Ma, J., & Zhang, A. (2023) · Lipids in Health and Disease · doi:10.1186/s12944-023-01959-0 · Cited by 41
“The NHANES 2011– 2014 modules consist of CERAD-WL, CERAD-DR [38], AFT [39], and the DSST [40].”
MethodFrailty is associated with worse cognitive functioning in older adults
Li, C.-M., Ge, S., Yin, Y., Tian, C., Mei, Y., & Han, P. (2023) · Frontiers in Psychiatry · doi:10.3389/fpsyt.2023.1108902 · Cited by 37
“It has also been widely used in epidemiological studies (26).”
MethodAccrual of functional redundancy along the lifespan and its effects on cognition
Sadiq, M. U., Langella, S., Giovanello, K. S., Mucha, P. J., & Dayan, E. (2021) · NeuroImage · doi:10.1016/j.neuroimage.2021.117737 · Cited by 35
Social network type and subsequent cognitive health among older Europeans
Cohn‐Schwartz, E., Levinsky, M., & Litwin, H. (2020) · International Psychogeriatrics · doi:10.1017/s1041610220003439 · Cited by 56
“The fl uency test is considered to be a measure of executive functioning, but also re fl ects other processes, such as semantic memory and processing speed (Clark et al. , 2009; Hau-grud et al. , 2011).”
Machine learning for the prediction of cognitive impairment in older adults
Li, W., Zeng, L., Yuan, S., Shang, Y., Zhuang, W., Chen, Z., & Lyu, J. (2023) · Frontiers in Neuroscience · doi:10.3389/fnins.2023.1158141 · Cited by 34
“In the AF test (Clark et al., 2009), participants were asked to name as many animals as possible in 1min, and received 1 point for each correct answer.”
MethodCurrent Understanding of Verbal Fluency in Alzheimer’s Disease: Evidence to Date
Wright, L., Marco, M. D., & Venneri, A. (2023) · Psychology Research and Behavior Management · doi:10.2147/prbm.s284645 · Cited by 40
Paek, E. J., Murray, L. L., & Newman, S. D. (2020) · Frontiers in Aging Neuroscience · doi:10.3389/fnagi.2020.00073 · Cited by 42
Rivera, D., Olabarrieta-Landa, L., der Elst, W. V., Gonzalez, I., Rodríguez-Agudelo, Y., Aguayo-Arelis, A., Rodríguez-Irizarry, W., de la Cadena, C. G., & Arango-Lasprilla, J. (2019) · Neuropsychology · doi:10.1037/neu0000518 · Cited by 35
Weak Grip Strength and Cognition Predict Functional Limitation in Older Europeans
Wang, T., Wu, Y.-L., Li, W., Li, S.-Y., Sun, Y.-P., Li, S.-X., Zhang, D.-F., & Tan, Q. (2018) · Journal of The American Geriatrics Society · doi:10.1111/jgs.15611 · Cited by 35
Spin exercise improves semantic fluency in previously sedentary older adults.
Nocera, J. R., McGregor, K., Hass, C., & Crosson, B. (2015) · Journal of Aging and Physical Activity · doi:10.1123/japa.2013-0107 · Cited by 34
Improving clinical cognitive testing
Daffner, K., Gale, S., Barrett, A. M., Boeve, B., Chatterjee, A., Coslett, H. B., D'Esposito, M., Finney, G. R., Gitelman, D., Hart, J., et al. (2015) · Neurology · doi:10.1212/wnl.0000000000001763 · Cited by 31
“This test has been studied in longitudinal cohorts of aging and patients with AD at various stages of severity.(33,34) Impaired semantic processing, as indexed by reduced semantic fluency, is a common early sign of underlying AD pathology.”
BackgroundQiu, X., Kuang, J., Huang, Y., Wei, C., & Zheng, X. (2024) · BMC Public Health · doi:10.1186/s12889-024-19332-w · Cited by 32
“The test’s essence lies in the participant’s ability to enumerate as many animals as possible within a 60-second frame [29].”
BackgroundPromoting Cognitive Health in Elder Care with Large Language Model-Powered Socially Assistive Robots
Lima, M. R. D., O'Connell, A., Zhou, F. B., Nagahara, A., Hulyalkar, A., Deshpande, A., Thomason, J., Vaidyanathan, R., & Matarić, M. J. (2025) · CHI Conference on Human Factors in Computing Systems · doi:10.1145/3706598.3713582 · Cited by 24
Dong, X. Z., Jiang, H. F., Li, S., & Zhang, D. (2021) · Frontiers in Aging Neuroscience · doi:10.3389/fnagi.2021.712237 · Cited by 36
“…they have been used in large-scale screening and epidemiological studies to examine the associations between cognitive performance and many of the medical conditions and risk factors measured in NHANES examination (Fillenbaum et al., 2008; Gao et al., 2009; Clark et al., 2009; Jaeger, 2018).”
MethodLi, W., Marta Kutas, A., Gray, J. A., Hagerman, R. J., & Olichney, J. (2020) · Neuroscience & Biobehavioral Reviews · doi:10.1016/j.neubiorev.2020.09.023 · Cited by 27
García‐Herranz, S., Mardomingo, C. D., Venero, C., & Peraita, H. (2019) · Aging Neuropsychology and Cognition · doi:10.1080/13825585.2019.1698710 · Cited by 33
Which neuropsychological tests predict progression to Alzheimer’s disease in Hispanics?
Weissberger, G. H., Salmon, D. P., Bondi, M. W., & Gollan, T. H. (2013) · Neuropsychology · doi:10.1037/a0032399 · Cited by 26
“…to be determined, however, whether or not verbal fluency (particularly semantic fluency) is as effective in detecting preclinical AD in bilinguals as it is in monolinguals (e.g., Albert, Moss, Tanzi, & Jones, 2001; Clark et al., 2009; for reviews, see Twamley et al., 2006, and Henry et al., 2004).”
BackgroundPerformance on a measure of category fluency in cognitively impaired elderly
Hall, J., Harvey, M., Vo, H. T., & O'Bryant, S. E. (2011) · Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition · doi:10.1080/13825585.2011.557495 · Cited by 26
Cortical Changes in Incipient Alzheimer's Disease
Prestia, A., Drago, V., Rasser, P. E., Bonetti, M., Thompson, P. M., & Frisoni, G. B. (2011) · Journal of Alzheimer s Disease · doi:10.3233/jad-2010-101191 · Cited by 29
Cortical Thickness and Semantic Fluency in Alzheimer’s Disease and Mild Cognitive Impairment
Eastman, J. A., Hwang, K., Lazaris, A. S., Chow, N., Ramirez, L. M., Babakchanian, S., Woo, E., Thompson, P. M., & Apostolova, L. G. (2013) · American Journal of Alzheimer s Disease & Other Dementias® · doi:10.7726/ajad.2013.1006 · Cited by 28
“Semantic fluency is a sensitive measure for distinguishing between normal subjects and those with early cognitive decline who proceed to AD (Canning, Leach et al. 2004; Grundman, Petersen et al. 2004; Clark, Gatz et al. 2009).”
Cintoli, S., Favilli, L., Morganti, R., Siciliano, G., Ceravolo, R., & Tognoni, G. (2024) · Scientific Reports · doi:10.1038/s41598-024-52562-x · Cited by 25
“The word lists generated by the fluency test are a rich source of information to foresee outcomes in MCI 32 .”
BackgroundOlder adults, cognitively stimulating activities and change in cognitive function
Cegolon, A., & Jenkins, A. (2022) · International Journal of Lifelong Education · doi:10.1080/02601370.2022.2082574 · Cited by 25
“Verbal fluency is one of the most commonly used tasks in clinical practice to assess semantic memory (Clark et al., 2009; Dal Bianco et al., 2013).”
MethodEffects of Combined Aerobic Exercise and Cognitive Training on Verbal Fluency in Older Adults
Nocera, J. R., Mammino, K., Kommula, Y., Wharton, W., Crosson, B., & McGregor, K. (2020) · Gerontology and Geriatric Medicine · doi:10.1177/2333721419896884 · Cited by 25
Phonological and Semantic Fluency in Alzheimer’s Disease: A Systematic Review and Meta-Analysis
Olmos-Villaseñor, R., Sepulveda-Silva, C., Julio–Ramos, T., Fuentes–López, E., Toloza–Ramirez, D., Santibañez, R. A., Copland, D. A., & Méndez‐Orellana, C. (2023) · Journal of Alzheimer s Disease · doi:10.3233/jad-221272 · Cited by 36
Sun, X.-Y., Yu, W.-P., Wang, M.-S., Hu, J., & Li, Y.-N. (2023) · Frontiers in Endocrinology · doi:10.3389/fendo.2023.1135085 · Cited by 24
“AFT is a language fluency task that checks execution functions (21).”
BackgroundInfluence of APOE Status on Lexical–Semantic Skills in Mild Cognitive Impairment
Biundo, R., Gardini, S., Caffarra, P., Concari, L., Martorana, D., Neri, T. M., Shanks, M. F., & Venneri, A. (2011) · Journal of the International Neuropsychological Society · doi:10.1017/s135561771100021x · Cited by 26
“Some studies have examined verbal fluency in the preclinical phase of AD and have also found significant deficits in category fluency (Clark et al., 2009).”
BackgroundInfluentialTessaro, B., Hermes-Pereira, A., Schilling, L., Fonseca, R., Kochhann, R., & Hübner, L. (2020) · Dementia & Neuropsychologia · doi:10.1590/1980-57642020dn14-030011 · Cited by 23
Roy, S., Drake, A. S., Snyder, S., Cline, B., Khan, A., Fuchs, T. A., Zivadinov, R., Weinstock‐Guttman, B., Szigeti, K., & Benedict, R. H. B. (2018) · Multiple Sclerosis and Related Disorders · doi:10.1016/j.msard.2018.03.008 · Cited by 24
Adamczuk, K., Weer, A. D., Nelissen, N., Dupont, P. J., Sunaert, S. G., Bettens, K., Sleegers, K., Broeckhoven, C. V., Laere, K. V., & Vandenberghe, R. R. (2014) · Cerebral Cortex · doi:10.1093/cercor/bhu286 · Cited by 32
“Word finding difficulties are frequent in clinically probable AD, even at a pre-dementia stage (Bayles and Tomoeda 1983; Huff et al. 1986; Chertkow and Bub 1990; Vandenbulcke et al. 2007; Apostolova et al. 2008; Clark et al. 2009; Sugarman et al. 2012).”
Ciardullo, S., Muraca, E., Bianconi, E., Ronchetti, C., Cannistraci, R., Rossi, L., Perra, S., Zerbini, F., & Perseghin, G. (2023) · Journal of Neurology · doi:10.1007/s00415-023-11739-6 · Cited by 23
“The Animal Fluency Test examines verbal category fluency, a component of executive function, as well as other functions such as semantic memory and processing speed [19].”
BackgroundZhong, Q., Sun, W. C., Qin, Y., & Xu, H. (2023) · Nutrients · doi:10.3390/nu15010239 · Cited by 29
Non-Linear Association between Folate/Vitamin B12 Status and Cognitive Function in Older Adults
Ding, Z., Luo, L., Guo, S., Shen, Q., Zheng, Y.-Y., & Zhu, S.-M. (2022) · Nutrients · doi:10.3390/nu14122443 · Cited by 21
Won, J., Faroqi‐Shah, Y., Callow, D. D., Williams, A. P., Awoyemi, A., Nielson, K. A., & Smith, J. C. (2021) · The Cerebellum · doi:10.1007/s12311-020-01218-3 · Cited by 21
Martin, A. K., Barker, M. S., Gibson, E. C., & Robinson, G. A. (2019) · Archives of Clinical Neuropsychology · doi:10.1093/arclin/acz044 · Cited by 23
Jiang, X., Petok, J. R., Howard, D. V., & Howard, J. H. (2017) · Frontiers in Aging Neuroscience · doi:10.3389/fnagi.2017.00103 · Cited by 18
“…(McDowd et al., 2011), and studies have found that verbal fluency declines in healthy aging (Elgamal et al., 2011; Stokholm et al., 2013), as well as in Alzheimer’s disease (Henry et al., 2004; Clark et al., 2009) and other neurological disorders (Henry and Beatty, 2006; McDowd et al., 2011).”
Background
Metadata
- Authors
- Clark, L. J., Gatz, M., Zheng, L., Chen, Y.-L., McCleary, C., & Mack, W. J.
- Affiliations
- University of Southern California (US)
- Alzheimer Disease Research Center, and Department of Neurology, University of Southern California, Los Angeles, California
- Corresponding author
- Mack, Wendy J.
- Venue
- American Journal of Alzheimer's Disease & Other Dementias®
- Publisher
- SAGE Publications
- Published
- 2009-09-16
- Volume
- 24
- Issue
- 6
- Pages
- 461-468
- ISSN
- 0888-4897 (ISSN-L)
- 1533-3175
- 1938-2731
- PMC
- PMC2824246
- OpenAlex
- W2058044289
- Cited by
- 318
- References
- 24
- Citations by year
- 2026: 14 · 2025: 51 · 2024: 37 · 2023: 34 · 2022: 20 · 2021: 23 · 2020: 20 · 2019: 18 · 2018: 23 · 2017: 11 · 2016: 10 · 2015: 14 · 2014: 10 · 2013: 12 · 2012: 5
- FWCI
- 4.12
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- American Journal of Alzheimer s Disease & Other Dementias® (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institutes of Health
- National Institute on Aging (P50-AG05142, P50AG005142)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
- Social Sciences › Psychology › Clinical Psychology › Historical and Modern Theater Studies
- Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
- Keywords
- verbal fluency, semantic fluency, phonemic fluency, animal fluency, Alzheimer's disease, preclinical Alzheimer's disease, normal aging, cognitive decline, longitudinal change, cognitive impairment
- MeSH terms
- Aged, Aged, 80 and over, Aging, Alzheimer Disease, Cognition, Cognition Disorders, Diagnosis, Differential, Female, Follow-Up Studies, Humans, Longitudinal Studies, Male, Memory, Neuropsychological Tests, Semantics, Speech Disorders, Prevalence, Multivariate Analysis, Disease Progression, Early Diagnosis
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