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Longitudinal decline in semantic versus letter fluency, but not their ratio, marks incident Alzheimer's disease in Latinx Spanish-speaking older individuals.

Kayri K FernándezAnton J KociolekPatrick J LaoYaakov SternJennifer J ManlyJet M J Vonk
Published in: Journal of the International Neuropsychological Society : JINS (2023)
A decline in letter fluency and a more rapid and accelerating decline over time in semantic fluency distinguished people who developed Alzheimer's disease from controls. Using the semantic index was not a superior marker of incident Alzheimer's disease compared to examining the two fluency scores individually. Results suggest the differential decline in verbal fluency tasks, when evaluated appropriately, may be useful for early identification of Alzheimer's disease in Latinx Spanish speakers, a historically understudied population.
Keyphrases
  • cognitive decline
  • cardiovascular disease
  • working memory
  • physical activity
  • type diabetes
  • sensitive detection