IC-P-080: Prefrontal lateralization during a verbal fluency task predicts neuropsychological changes in healthy elderly controls: a fNIRS study

2011 ◽  
Vol 7 ◽  
pp. S41-S42
Author(s):  
Julia Zeller ◽  
Thomas Polak ◽  
Andreas Fallgatter
Keyword(s):  
Verbal Fluency ◽  
Verbal Fluency Task ◽  
Healthy Elderly ◽  
Neuropsychological Changes ◽  
Fluency Task

scholarly journals Characteristics of Clustering and Switching in Verbal Fluency according to Healthy Elderly Group

2021 ◽  
Vol 26 (3) ◽  
pp. 630-640
Author(s):  
Juyeong Kim ◽  
Hyunjoo Choi
Keyword(s):  
Old Age ◽  
Verbal Fluency ◽  
Age Groups ◽  
Age Group ◽  
Semantic Fluency ◽  
Verbal Fluency Task ◽  
Healthy Elderly ◽  
Significant Difference ◽  
Phonemic Verbal Fluency ◽  
Fluency Task

Objectives: The purpose of this study was to investigate the characteristics of clusters and switches through verbal fluency tasks by different age groups among the elderly.Methods: Ninety-four healthy elderly adults participated in this study. The verbal fluency task consisted of semantic verbal fluency and phonemic verbal fluency. The categories of ‘animal’ and ‘supermarket’ were used for semantic fluency, and the categories ‘/k/’, ‘/o/’ and ‘/s/’ were used for phonemic fluency.Results: First, there was a significant difference between the age groups. The number of correct responses in the verbal fluency task decreased as age increased. Second, the mean cluster size for verbal fluency did not show a significant difference among groups in tasks of semantic and phonemic verbal fluency. Third, the number of switches showed a significant difference between groups in semantic and phonemic verbal fluency. In the post-analysis results of semantic fluency, a significant difference was found in the category of ‘animals’ between the young-old and old-old age group, and a significant difference was found in the number of switches in the category of ‘supermarket’ between the middle-old and old-old age group. Finally, the semantic fluency task showed the highest frequency of perseverative error, and the phonemic fluency task showed the highest frequency of other errors.Conclusion: These results of this study are meaningful in investigating characteristics of cluster and switch as well as the performance of correct rate through the verbal fluency tasks according to the elderly group.

scholarly journals EXPRESS: Attention in Post-Lexical Processes of Utterance Production: Dual-Task Cost in Younger and Older Adults

2021 ◽  
pp. 174702182110341
Author(s):  
Maryll Fournet ◽  
Michaela Pernon ◽  
Sabina Catalano Chiuvé ◽  
Ursula Lopez ◽  
Marina Laganaro
Keyword(s):  
Older Adults ◽  
Dual Task ◽  
Verbal Fluency ◽  
Verbal Task ◽  
Lexical Selection ◽  
Speech Task ◽  
Verbal Fluency Task ◽  
Dual Task Cost ◽  
Lexical Processes ◽  
Fluency Task

There is a general agreement that speaking requires attention at least for conceptual and lexical processes of utterance production. However, conflicting results have been obtained with dual-task paradigms using either repetition tasks or more generally tasks involving limited loading of lexical selection. This study aimed to investigate whether post-lexical processes recruit attentional resources. We used a new dual-task paradigm in a set of experiments where a continuous verbal production task involved either high or low demand on lexical selection processes. Experiment 1 evaluates lexical and post-lexical processes with a semantic verbal fluency task, whereas experiments 2 and 3 focus on post-lexical processes with a non-propositional speech task. In each experiment, two types of non-verbal secondary tasks were used: processing speed (simple manual reaction times) or inhibition (Go/No-go). In Experiment 1, a dual-task cost was observed on the semantic verbal fluency task and each non-verbal task. In Experiment 2, a dual-task cost appeared on the non-verbal tasks but not on the speech task. The same paradigm was used with older adults (Experiment 3), as increased effort in post-lexical processes has been associated with ageing. For older adults, a dual-task cost was also observed on the non-propositional verbal task when speech was produced with the inhibition non-verbal task. The results suggest an attentional cost on post-lexical processes and strategic effects in the resolution of the dual-task.

scholarly journals Normative data for healthy elderly on the phonemic verbal fluency task - FAS

2009 ◽  
Vol 3 (1) ◽  
pp. 55-60 ◽  
Author(s):  
Thais Helena Machado ◽  
Helenice Charchat Fichman ◽  
Etelvina Lucas Santos ◽  
Viviane Amaral Carvalho ◽  
Patrícia Paes Fialho ◽  
...  
Keyword(s):  
Test Performance ◽  
Educational Level ◽  
Verbal Fluency ◽  
Normative Data ◽  
Age Groups ◽  
The Elderly ◽  
Verbal Fluency Task ◽  
Healthy Elderly ◽  
Phonemic Verbal Fluency ◽  
Student’S T

Abstract Phonemic verbal fluency tests assess the production of words beginning with specific letters. Of these letters, the most frequently used are F, A and S. It is a sensitive test for assessing frontal lobe functions. Objective: To provide normative data for the elderly Brazilian population on the FAS test and to investigate the effects of age and schooling on test performance. Methods: The individuals were divided into three age groups (60-69, 70-79 and ³80 years), and into four groups according to education (1-3, 4-7, 8-11 and ³12 years). All subjects were assessed by the Mini Mental State Examination and the FAS. Data were analyzed with Student's t test, ANOVA, simple linear regression and Spearman's correlation. Results: We evaluated 345 cognitively healthy volunteers, 66.66% being female, aged 60 to 93 years, with an educational level ranging from one to 24 years. The average (number of items) ±SD for the whole sample was 28.28±11.53. No significant effect of gender was observed (p=0.5). Performance on the MMSE and education exerted a direct influence on FAS scores (p<0.001), with education being the most significant factor. A positive correlation was found between FAS and the MMSE (r=0.404; p<0.001). Conclusion: The performance of Brazilian elderly on the phonemic verbal fluency tests-FAS is significantly influenced by education, where individuals with higher educational level present better performance than those with fewer years of schooling. Age and gender did not prove significant with the FAS.

scholarly journals Effects of dual task demanding manual dexterity and sit-to-stand in Parkinson disease individuals

2021 ◽  
Vol 15 (2) ◽  
pp. 137-148
Author(s):  
Tatiana B. Freitas ◽  
José Eduardo Pompeu ◽  
Briana R. B. Moraes ◽  
Sandra M. A. A. Pompeu ◽  
Keyte G. Silva ◽  
...  
Keyword(s):  
Dual Task ◽  
Verbal Fluency ◽  
Manual Dexterity ◽  
Dual Tasks ◽  
Verbal Fluency Task ◽  
Sit To Stand ◽  
Yahr Scale ◽  
Task Conditions ◽  
The Cost ◽  
Fluency Task

BACKGROUND: Parkinson's disease (PD) causes loss of automaticity and impairment in dual task (DT) performance. AIM: To investigate the performance and pattern of prioritization of individuals with PD in motor and cognitive DT. METHOD: An observational, transversal, comparative study assessed 20 individuals with PD between stages 1.5 to 3 of the modified Hoehn and Yahr scale. Performance was assessed during the execution of manual dexterity and sit-to-stand tasks, in a single task or in association with a verbal fluency task. RESULTS: There was a loss of performance in both dual task conditions. The cost of verbal fluency was higher than the cost of manual dexterity function. CONCLUSION: Individuals with PD showed worse DT performance and prioritized the manual dexterity task. There was no prioritization between sit-to-stand and verbal fluency. These findings suggest that the nature of tasks can influence the prioritization of dual tasks.

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