APOE Moderates the Association between Lifestyle Activities and Cognitive Performance: Evidence of Genetic Plasticity in Aging
Why this work is in the frame
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Bibliographic record
Abstract
The current study examined independent and interactive effects between Apolipoprotein E (APOE) genotype and two types of cognitively-stimulating lifestyle activities (CSLA)-integrated information processing (CSLA-II) and novel information processing (CSLA-NI)-on concurrent and longitudinal changes in cognition. Three-wave data across 6 years of follow-up from the Victoria Longitudinal Study (n=278; ages 55-94) and linear mixed model analyses were used to characterize the effects of APOE genotype and participation in CSLA-II and CSLA-NI in four cognitive domains. Significant CSLA effects on cognition were observed. More frequent participation in challenging activities (i.e., CSLA-NI) was associated with higher baseline scores on word recall, fact recall, vocabulary and verbal fluency. Conversely, higher participation in less cognitively-challenging activities (i.e., CSLA-II) was associated with lower scores on fact recall and verbal fluency. No longitudinal CSLA-cognition effects were found. Two significant genetic effects were observed. First, APOE moderated CSLA-II and CSLA-NI associations with baseline verbal fluency and fact recall scores. Second, APOE non-ɛ4 carriers' baseline performance were more likely to be moderated by CSLA participation, compared to APOE-ɛ4 carriers. Our findings suggest APOE may be a "plasticity" gene that makes individuals more or less amenable to the influence of protective factors such as CSLA.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it