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What a transparent Romance language with a Germanic gender-determiner mapping tells us about gender retrieval: Insights from European Portuguese ; Gender processing in European Portuguese
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Cognitive compensatory mechanisms in normal aging: a study on verbal fluency and the contribution of other cognitive functions
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Abstract:
Verbal fluency has been widely studied in cognitive aging. However, compensatory mechanisms that maintain its optimal performance with increasing age are not completely understood. Using cross-sectional data, we investigated differentiation and dedifferentiation processes in verbal fluency across the lifespan by analyzing the association between verbal fluency and numerous cognitive measures within four age groups (N=446): early middle-age (32-45 years), late middle-age (46-58 years), early elderly (59-71 years), and late elderly (72-84 years). ANCOVA was used to investigate the interaction between age and fluency modality. Random forest models were conducted to study the contribution of cognition to semantic, phonemic, and action fluency. All modalities declined with increasing age, but semantic fluency was the most vulnerable to aging. The most prominent reduction in performance was observed during the transition from middle-age to early elderly, when cognitive variables stopped contributing (differentiation), and new cognitive variables started contributing (dedifferentiation). Lexical access, processing speed, and executive functions were among the most contributing functions. We conclude that the association between age and verbal fluency is masked by age-specific influences of other cognitive functions. Differentiation and dedifferentiation processes can coexist. This study provides important data for better understanding of cognitive aging and compensatory processes.
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Keyword:
Research Paper
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URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6628999/
https://doi.org/10.18632/aging.102040
http://www.ncbi.nlm.nih.gov/pubmed/31232698
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The impact of cognateness of word bases and suffixes on morpho-orthographic processing: A masked priming study with intermediate and high-proficiency Portuguese-English bilinguals
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In: ISSN: 1932-6203 ; EISSN: 1932-6203 ; PLoS ONE ; https://hal.archives-ouvertes.fr/hal-02116812 ; PLoS ONE, Public Library of Science, 2018, 13 (3), pp.e0193480. ⟨10.1371/journal.pone.0193480⟩ (2018)
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The impact of cognateness of word bases and suffixes on morpho-orthographic processing: a masked priming study with intermediate and high-proficiency portuguese-english bilinguals
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