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Summary
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Higher lifelong engagement in cognitive, physical, and creative activities is linked to better verbal fluency in women at risk for Alzheimer's disease. However, social activity was unexpectedly linked to poorer memory recall.

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Area of Science:

  • Neuroscience
  • Gerontology
  • Psychology

Background:

  • A healthy lifestyle is associated with improved brain health and reduced dementia risk.
  • The Dynamic Neurocognitive Adaptation Scale (dNA) measures lifelong engagement in physical, cognitive, creative, and social activities.
  • This study investigated the relationship between lifelong activity engagement and current memory performance in midlife women with a family history of Alzheimer's disease.

Purpose of the Study:

  • To examine the association between the Dynamic Neurocognitive Adaptation Scale (dNA) scores and memory performance in at-risk women.
  • To determine if higher levels of lifelong activity correlate with better memory outcomes.
  • To explore potential links between specific activity domains and cognitive function.

Main Methods:

  • The study included 47 women (mean age=51) who completed the dNA and cognitive assessments.
  • Bivariate Spearman correlation analyses were used to examine relationships between dNA scores (total, domain, and time window) and memory tests (RAVLT, FNAME).
  • Exploratory analyses assessed dNA relationships with Trails B, Boston Naming Test, MMSE, and verbal fluency.

Main Results:

  • Lifelong activity engagement, particularly in cognitive, physical, and creative domains, peaked during adolescence and youth.
  • Higher social activity engagement was unexpectedly correlated with poorer delayed recall memory (RAVLT).
  • Exploratory analyses revealed positive correlations between higher total dNA scores and verbal fluency, as well as between creative/physical domains and verbal fluency.

Conclusions:

  • Lifelong activity engagement patterns show peaks in adolescence and youth, with intercorrelated domains.
  • Positive associations between dNA and verbal fluency suggest a link between cognitive flexibility and sustained activity engagement.
  • Reduced adult engagement highlights a potential need for lifestyle interventions in midlife women, though the negative correlation with recall memory warrants further investigation.