Sex Differences in Cognitive Function and Memory

Sex differences in cognitive function and memory encompass a spectrum of behavioural, hormonal and neural mechanisms that manifest across the lifespan. Females often demonstrate an advantage in verbal memory tasks and exhibit greater resilience to early cognitive decline, whereas males tend to perform more strongly in spatial tasks. These patterns reflect both organisational effects of sex hormones during development and activational influences across adulthood. Sex-specific trajectories emerge in midlife, with decline in working memory and processing speed typically more pronounced in females, even as education and lifestyle factors modulate these changes. In later life, female advantage in certain memory domains may mask prodromal Alzheimer’s disease, delaying diagnosis and treatment. Conversely, once clinical signs emerge, neural degeneration can progress more rapidly in females, underscoring the interplay between cognitive reserve and neuropathology. Such findings carry global significance: they prompt the development of sex-sensitive assessment tools, inform personalised interventions and shape public health strategies for healthy cognitive ageing.

Research from Nature Portfolio

Advanced machine-learning models have been applied to cognitive screening data to predict amyloid-β status in preclinical and early prodromal stages. By stratifying cohorts by sex and disease stage and using cognitive domain scores rather than total test scores, these models achieved over 90 percent accuracy in male subjects and above 86 percent in female subjects. This approach highlights the differential diagnostic value of domain-specific memory measures in men and women. Complementing this, component analysis of neuropsychological performance in older adults revealed sex-specific cognitive profiles: females displayed a more decomposed structure, with four distinct components, whereas males exhibited a more global profile across three components. Such sex-dependent architectures offer insight into processing strategies and resilience patterns and underscore the importance of tailored cognitive assessment frameworks.

Sex Differences in Cognitive Function and Memory publication trend

The graph below shows the total number of articles in sex differences in cognitive function and memory across all publications each year (not limited to Nature Index journals).

Technical terms

Cognitive reserve: The brain’s capacity to maintain function in the presence of pathology through adaptable neural networks.

Mild cognitive impairment (MCI): A measurable decline in cognitive abilities that does not significantly impede daily independence.

Amyloid-β positivity: The presence of aggregated amyloid peptides in the brain, indicative of early Alzheimer’s pathology.

Domain score: A quantitative assessment of performance in a specific cognitive domain, such as memory or executive function.

Hippocampal volume: The measured size of the hippocampus, a region critical for memory formation, often assessed via neuroimaging.

References

1. Sex/gender differences in the clinical trajectory of Alzheimer’s disease: Insights into diagnosis and cognitive reserve. Frontiers in Neuroendocrinology (2025).
2. Change in cognitive performance during seven-year follow-up in midlife is associated with sex, age, and education – The Cardiovascular Risk in Young Finns Study. Journal of Neurology (2024).
3. Sex differences and the role of education in cognitive ageing: analysis of two UK-based prospective cohort studies. The Lancet Public Health (2021).
4. Machine learning methods to predict amyloid positivity using domain scores from cognitive tests. Scientific Reports (2021).
5. Cognitively normal women with Alzheimer’s disease proteinopathy show relative preservation of memory but not of hippocampal volume. Alzheimer's Research & Therapy (2019).
6. Sex differences in risk factors that predict progression from mild cognitive impairment to Alzheimer’s dementia. Journal of the International Neuropsychological Society (2022).
7. Cognitive profiles in older males and females. Scientific Reports (2021).