David A. Raichlen

The paper assesses brain-predicted age differences in cognitively-intact oldest-old adults and finds no association between brain aging and cognitive performance or health history, suggesting high cognitive reserve and survivorship effects.

The paper develops two novel spatial memory tests for dogs and finds age-related cognitive decline is consistent across body sizes, suggesting no moderation by body mass.

The paper examines age-related GABA level changes in cognitively-intact oldest-old adults, finding that GABA decline flattens after age 80, suggesting a link between GABAergic function and successful cognitive aging.

This study identifies 19 genome-wide significant loci associated with liking of physical activity traits using UK Biobank data and validates findings in twin cohorts.

The paper examines the relationship between hippocampal structure and episodic memory in oldest-old adults, finding a significant correlation between hippocampal morphology and memory performance.

This study examines how network segregation in the brains of healthy oldest-old adults relates to cognitive performance and processing speed.

This study uses Mendelian randomization to show that moderate and vigorous physical activity causally improve cognitive functioning, but not average activity or reverse effects.

This study identifies 26 genetic loci associated with physical activity using UK Biobank data, including APOE and CADM2, and finds genetic correlations with educational attainment and psychiatric traits.