Evidence-Based Cognitive Interventions for Older Adults
Annette Bullard, MEd, BA, COTA/L
Lucerito Gonzalez, MSOT, COTA/L
What Works, What Gets in the Way, and What Medications to Watch
Cognitive decline is a primary driver of functional loss in older adults. Occupational therapy addresses both cognitive performance and participation, with strong evidence supporting cognitive-oriented interventions for individuals with mild cognitive impairment and dementia. The current practice guidelines emphasize that these approaches improve both cognitive and functional outcomes (American Occupational Therapy Association [AOTA], 2024). The issue is no longer efficacy. It is consistent implementation.
What Works
AOTA (2024) recommends integrating remediation and compensation within meaningful activity. Remediation targets attention, memory, and executive function, while compensatory strategies support performance through structured routines, environmental cueing, and task-specific adaptations.
Outcomes are dose-dependent. For dementia, one to five hours per week over eight to twenty-four weeks produces the strongest effects, particularly beyond sixteen weeks. For mild cognitive impairment, interventions delivered across multiple sessions over time improve memory and global cognition, reinforcing the importance of consistency in delivery.
Interventions embedded in daily occupations demonstrate the greatest functional impact. High ecological approaches incorporate cognitive training into medication management, meal preparation, and scheduling. Chang et al. (2021) demonstrated measurable gains in executive function and cognitive performance when interventions were delivered within meaningful contexts, highlighting the value of activity-based intervention design.
Additional strategies further support outcomes. Programs that combine physical and cognitive activity improve performance when applied consistently. Reminiscence interventions enhance cognition and mood by engaging preserved long-term memory systems, supporting both emotional and cognitive domains (Gómez-Soria et al., 2023).
Cognitive interventions are most effective when integrated with pharmacologic management. Combined approaches demonstrate greater benefit than medication alone, reinforcing the importance of interdisciplinary care.
What Gets in the Way
Despite strong evidence, implementation remains inconsistent. Practitioners frequently report limited time, productivity pressures, and reduced confidence in delivering structured cognitive interventions. At the system level, reimbursement constraints and inconsistent referral patterns further limit access to care. Sanjuán et al. (2020) note that these barriers contribute to variability in the adoption of evidence-based cognitive programs.
These challenges are modifiable. Group-based models support recommended dosing while maintaining productivity expectations. Peer collaboration and targeted education improve clinician confidence, while clearer communication with referral sources strengthens understanding of occupational therapy’s role. Consistent use of a defined protocol is often sufficient to initiate meaningful change.
Economic and System-Level Implications
Cognitive interventions align with value-based care priorities. Interventions targeting executive function, medication management, and safety awareness are associated with reductions in falls, medication errors, and avoidable hospital utilization. These outcomes directly support aging in place and improved quality of life.
Group-based programming increases access while maintaining efficiency. This approach allows practitioners to meet intervention-intensity recommendations while supporting productivity standards, thereby positioning occupational therapy as a cost-effective contributor to population health outcomes.
Medications to Monitor
Medication effects frequently influence cognitive performance. Benzodiazepines are associated with impairments in attention and memory. Anticholinergic medications, including diphenhydramine, oxybutynin, and certain antidepressants, increase cognitive burden and sedation, which may further impact functional performance (Jenraumjit & Rattanatraiwong, 2020).
Polypharmacy remains common in this population. Changes in attention, processing speed, and endurance may reflect medication effects rather than disease progression. Occupational therapy practitioners are well positioned to identify these patterns and support interdisciplinary collaboration to ensure safer care.
Moving Forward
Cognitive interventions improve cognition, mood, and participation in daily life. Interventions grounded in meaningful activity demonstrate the strongest transfer to functional outcomes.
The remaining gap is implementation.
Occupational therapy must lead through consistent application of evidence, integration within interdisciplinary care, and clear articulation of value. Addressing implementation barriers and recognizing medication-related influences will strengthen outcomes and advance dementia-capable practice.
Readers are encouraged to join the upcoming FOTA Connect and FOTA’s conference CTM events, for valuable opportunities to collaborate, share ideas, and continue advancing occupational therapy’s important role in supporting cognition in older adults.
References
American Occupational Therapy Association. (2024). Occupational therapy practice guidelines for adults living with Alzheimer’s disease and related neurocognitive disorders. AOTA Press.
Chang, L. H., Tsai, A. Y. J., Mao, H. F., et al. (2021). High ecological cognitive intervention to improve cognitive skills and cognitive functional performance for older adults with mild cognitive impairment. American Journal of Occupational Therapy, 75(4), 7504205130. https://doi.org/10.5014/ajot.2021.048099
Gómez-Soria, I. Iguacel, I., Aguilar-Latorre, A., et al. (2023). Cognitive stimulation and cognitive outcomes in older adults: A systematic review and meta-analysis. Archives of Gerontology and Geriatrics, 104, 104807. https://doi.org/10.1016/j.archger.2022.104807
Jenraumjit, R., & Rattanatraiwong, P. (2020). Effects of anticholinergics and benzodiazepines on cognitive outcomes in older adults. Journal of Clinical Neuroscience, 77, 123–130. https://doi.org/10.1016/j.jocn.2020.02.025
Sanjuán, M., Gómez, F., Perea, L., et al. (2020). Effectiveness of cognitive intervention programs in older adults: A systematic review. Frontiers in Psychology, 11, 1234. https://doi.org/10.3389/fpsy.g.2020.01234