Cognitive Aging in Autism Spectrum Disorder
Summary
Autism spectrum disorder (ASD) is increasingly recognised as a lifelong condition, yet understanding of how core cognitive functions evolve with age remains limited. Cognitive ageing in ASD encompasses changes in memory, attention, processing speed and executive function from mid-adulthood into later life. Evidence to date suggests that many cognitive domains decline at comparable rates in autistic and non-autistic adults, indicating parallel ageing trajectories. However, subtle differences emerge in tasks demanding rapid information processing and complex planning, where some older autistic individuals may experience greater challenges. Genetic factors linked to neurodegenerative risk, notably the APOE ε4 allele, appear to affect verbal learning similarly in autistic and non-autistic cohorts, though preliminary data hint at sex-specific vulnerabilities. Prospective memory—that is, remembering to carry out intentions at the appropriate moment—declines with age in both groups under laboratory conditions but seems preserved in everyday settings. Longitudinal studies, though still scarce, underscore the importance of robust cohort designs to disentangle cross-sectional age effects from genuine within-individual change. Recognising the nuances of cognitive ageing in ASD has global importance for shaping tailored interventions, informing employment and independent living support, and guiding healthcare policy towards sustained quality of life across the adult lifespan.
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Cognitive Aging in Autism Spectrum Disorder publication trend
The graph below shows the total number of articles in cognitive aging in autism spectrum disorder across all publications each year (not limited to Nature Index journals).
Technical terms
Executive function: A set of cognitive processes—including planning, inhibition and cognitive flexibility—that regulate goal-directed behaviour.
Prospective memory: The ability to remember to perform an intended action at an appropriate future moment.
APOE ε4 allele: A variant of the apolipoprotein E gene associated with increased risk for Alzheimer’s disease and impacts on memory.
Longitudinal study: Research design in which the same individuals are assessed repeatedly over time to observe changes.
References
- Remembering the future; prospective memory across the autistic adult’s life span. Autism (2024).
- APOE ε4-Allele in Middle-Aged and Older Autistic Adults: Associations with Verbal Learning and Memory. International Journal of Molecular Sciences (2023).
- A longitudinal study on cognitive aging in autism. Psychiatry Research (2023).
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