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Santos, Octavio A.

https://orcid.org/0000-0003-4413-9605

Mayo Clinic

Ottawa Hospital

Citations 9

Electronic Memory Support System (eMSS): An Innovative Digital Calendar and Training Program for Older Adults with Mild Cognitive Impairment
McClymont, Shekinah, Berbatovci, Fjolla , Schwellnus, Meg, Santos, Octavio A. , Chan, Adrian D. C. , Chandler, Melanie , Shandera‐Ochsner, Anne L., Jaiswal, Atul, Trudel, Chantal , Thomas, Neil , Rajabiyazdi, Fateme , Locke, Dona E.C.

Alzheimer's & Dementia | December 26, 2025 | Volume: 21 | Issue: S4 | Pages: No page available

10.1002/alz70858_107207 Get It

Abstract Background Individuals with mild cognitive impairment (MCI) experience challenges in maintaining independence in their instrumental activities of daily living (IADLs). The memory support system (MSS) is a paper‐based planner intervention to train individuals with MCI to complete personal goals and IADLs independently. As more individuals use electronic calendar systems, the MSS will need to adapt. This project aimed to develop and test an electronic prototype of the MSS (eMSS). Method Drawing on the MSS, an eMSS prototype intended for phone/tablet use was developed in Axure, allowing participants to interact with the planner and its sections (calendar, notes, to do list). The prototype was evaluated with MSS trainers and individuals with MCI and their partners using a computer or tablet over a virtual platform. Participants were asked to go through fictional ‘planning’ scenarios which were assessed using cognitive task analysis (CTA). The scenarios were designed to evaluate overall ease of use, and specifics such as navigation between pages/sections and developing schedules and task lists. During sessions, participants were encouraged to 'think aloud,' providing insight into their eMSS experience. Result To date, CTA has been conducted with 6 MSS trainers, and 2 patient/partner dyads that completed the MSS training program. Early results provide insight on strengths, challenges and opportunities to optimize the eMSS. Participants could identify and use key features (e.g., menus) and found the symbols and language consistent. However, participants didn’t notice some features (e.g., interactive arrows to navigate across dates) and requested more ‘cueing’ or ‘interactive prompts.’ Participants would prefer to see all information entered on individual pages (which is possible with the MSS) to support better situation awareness. Conclusion To respond to the everyday planning needs of individuals with MCI in a digital age, an eMSS was developed, drawing on a clinically trialed hardcopy version (MSS). Positive feedback from MSS trainers and patients with MCI and their partners suggests promise for the overall design. Improvements for the next iteration include designing cues to help users know actions have been completed or when to attend to important information, as well as providing more fulsome information on pages to support awareness of daily tasks.
Digital Planning-Based Technologies to Support Memory-Related Functioning in Older Adults with Mild Cognitive Impairment: A Systematic Scoping Study
Sriranganathan, Aswen , Kathiravelu, Shaylene, Sikora, Lindsey , McClymont, Shekinah, Locke, Dona E.C. , Chandler, Melanie , Shandera‐Ochsner, Anne L., Chan, Adrian D. C. , Rajabiyazdi, Fateme , Santos, Octavio A. , Trudel, Chantal , Jaiswal, Atul , Thomas, Neil , Locke, Dona E C , Li, Tracy

Journal of Ageing and Longevity | October 8, 2025 | Volume: 5 | Issue: 4 | Pages: 42

10.3390/jal5040042 Get It

Background: Mild cognitive impairment (MCI) is a precursor to dementia, with a prevalence of over 15% among community dwellers, with significant economic and social implications. Despite preserved autonomy in daily living, individuals with MCI face challenges in handling everyday technology and memory-related tasks, necessitating digital interventions, such as digital planning-based technologies to support cognitive functioning. Objective: The aim of this study is to identify and summarize available research literature on available digital planning-based technologies to support memory-related functioning in older adults with MCI. Specifically, this study seeks to (1) document the types and functions of these technologies, (2) report their effectiveness, and (3) identify gaps in the current evidence. Methods: A comprehensive literature search of four databases (Medline, Embase, APA PsycINFO, and CINAHL) was conducted in accordance with Arksey and O’Malley’s scoping review methodological framework from inception to February 6, 2024, without restrictions. Inclusion criteria focused on peer-reviewed studies involving adults aged 50 or older with diagnosed cognitive impairment, specifically using digital planning-based technologies for memory support. Results: From 1854 sources, 8 studies were included. Five categories of digital planning-based technologies were identified: (1) reminders and alarms, (2) electronic calendars, (3) digital memory notebooks, (4) digital visual mapping, and (5) smart-home integration. Several studies reported improved task performance, memory recall, and executive function, with digital memory notebooks and visual mapping software showing greatest impact on functional independence. While interventions were generally well-received, usability challenges and low adherence were common, often linked to technological familiarity and motivation. Conclusions: Digital planning-based technologies show promise in supporting memory-related functioning in older adults with MCI. While studies report positive outcomes, more research is needed to refine these tools, evaluate long-term effects, and ensure integration into daily life. Expanding the evidence base will be key to improving accessibility and effectiveness for this population.
Implementation of the Memory Support System for Individuals with Mild Cognitive Impairment: A Feasibility Survey Study
Brar, Suraj , Santos, Octavio A. , Kassabri, Nicholas , Sweet, Lisa, Knoefel, Frank , Chandler, Melanie , Jaiswal, Atul , Thomas, Neil , Jaana, Mirou

Journal of Dementia and Alzheimer's Disease | August 7, 2025 | Volume: 2 | Issue: 3 | Pages: 26

10.3390/jdad2030026 Get It

Background/Objectives: Mild Cognitive Impairment (MCI), a condition between normal aging and dementia, is characterized by cognitive changes that do not significantly affect instrumental activities of daily living. The Memory Support System (MSS), an evidence-based behavioral intervention developed by the Mayo Clinic, has been shown to aid those living with MCI and their support partners in coping with cognitive challenges. However, the MSS has not been offered clinically within the Canadian context. Therefore, we conducted a study assessing the feasibility of the MSS from the perspectives of individuals living with MCI and their support partners. Methods: Participants from an institutional registry of research participants, patients, and support partners at a memory clinic, as well as members of a local Dementia Society, were approached to complete an online or paper version of a survey assessing feasibility dimensions. Responses were compared between and within groups for differences in mean scores and associations between linked binary choice response questions. Results: A total of 77 responses were received; 39 surveys were completed by participants with MCI, and 38 by support partners. Respondents found the MSS to be acceptable and practical. On average, participants thought it would be more difficult to train in using the MSS than support partners. Both groups expressed interest in the intervention. On average, participants with MCI and support partners preferred virtual MSS training to in-person and indicated more interest in participating in training over six weeks as compared to two weeks. Conclusions: Flexibility in duration and format when offering the MSS are important considerations when offering the intervention as part of a clinical program. Future research should evaluate cost-effectiveness (e.g., financial, staff resources, etc.) of the MSS approach if it were to be institutionalized in the Ontario healthcare system.
Memory Support System in Spanish: A Pilot Study
Santos, Octavio A. , Rios-Rosales, Anapaula, Pedraza, Otto , Bergeron, Caroline D. , Chandler, Melanie

Brain Sciences | October 21, 2021 | Volume: 11 | Issue: 11 | Pages: 1379

10.3390/brainsci11111379 Get It

Subjective cognitive decline (SCD) is prevalent in the general population, particularly among Hispanic adults. SCD increases the risk of mild cognitive impairment (MCI) and dementia. While non-pharmacologic interventions are recommended to mitigate cognitive decline and preserve daily function in SCD and MCI, such interventions are not readily available for Spanish-speaking Hispanic adults with SCD. This pilot study, preregistered at clinicialtrials.gov, aimed to develop a linguistically and culturally appropriate adaptation of an existing memory compensation intervention, the Memory Support System (MSS), from English to Spanish, and to gather data to assess its impact in this population. Twenty Spanish-speaking Hispanic adults with SCD and 16 support partners were recruited. Measures of treatment adherence, daily function, self-efficacy for memory, quality of life, mood, anxiety, and caregiver burden were assessed at baseline, treatment end, and 8-week follow-up. By treatment end, participants with SCD improved their general functional status, daily activities requiring organizational skills, and depression and anxiety symptoms. Partners reported improvement in anxiety by treatment end and in caregiver burden at follow-up. The MSS was successfully translated into Spanish and readily learned by participants with SCD and their partners. The MSS in Spanish may help with daily functioning and aspects of patient and family well-being.
Spanish translation and cultural adaptation of the memory support system: A pilot study
Santos, Octavio A. , Espinoza, Dairlin, Pedraza, Otto , Chandler, Melanie

Alzheimer's & Dementia | December 7, 2020 | Volume: 16 | Issue: S7 | Pages: No page available

10.1002/alz.042120 Get It

AbstractBackgroundSubjective cognitive decline (SCD) affects 1 in 9 Hispanics aged ≥45 in the U.S., including 1 in 3 who report that SCD interferes with instrumental activities of daily living (IADLs) and 1 in 2 who give up IADLs or need help performing household tasks. A curriculum and calendar/note‐taking system [Memory Support System (MSS)] has proven effective to sustain independence in IADLs in patients with mild cognitive impairment, and protect mood among program partners compared to controls. Until recently, the MSS had only been utilized among English‐speaking, predominately Caucasian, samples.MethodThis study investigated the use of a translated and culturally‐adapted MSS in 20 Spanish‐speaking participants with SCD [80% female, age M = 66.8 (SD = 10.3), education M = 14.8 (SD = 3.6)] and their program partners. A within‐subject multiple baseline design in a 10‐session, 2 to 6‐week MSS training schedule was utilized. Outcome measures included treatment adherence and self‐ and informant‐report questionnaires of IADLs, anxiety, depression, self‐efficacy, caregiver burden, and quality of life.ResultMSS training significantly improved adherence to the MSS calendar by treatment completion (d = ‐3.75). Participants with SCD also showed significant improvement in overall functional status (d = 0.72), and in daily activities requiring organizational skills (d = 0.66). Symptoms of depression (d = 0.99) and anxiety (d = 0.84) also improved by treatment end, and program partners reported significant improvement in their own anxiety (d = 0.84). There was a significant association between MSS adherence and anxiety in participants with SCD (r = ‐.51).ConclusionOverall, preliminary findings suggest that with appropriate training, Spanish‐speaking participants with SCD can and will use a memory notebook system to help compensate in daily life for their SCD and decrease emotional distress. Future research should investigate the Spanish MSS efficacy over time in a randomized controlled trial.
Clinical and pathologic features of cognitive-predominant corticobasal degeneration
Sakae, Nobutaka, Santos, Octavio A. , Pedraza, Otto , Murray, Melissa E. , Duara, Ranjan , Uitti, Ryan J. , Graff‐Radford, Neill R. , Josephs, Keith A. , Dickson, Dennis W , Murray, Melissa E , Litvan, Irene , Duara, Ranjan , Wszołek, Zbigniew K. , Dickson, Dennis W.

Neurology | June 10, 2020 | Volume: 95 | Issue: 1 | Pages: No page available

10.1212/wnl.0000000000009734 Get It

Ethnoracial differences in Alzheimer's disease from the FLorida Autopsied Multi‐Ethnic (FLAME) cohort
Santos, Octavio A. , Pedraza, Otto , Lucas, John A. , Duara, Ranjan , Greig‐Custo, Maria T., Al‐Shaikh, Fadi S. Hanna , Liesinger, Amanda M., Bieniek, Kevin F. , Hinkle, Kelly M., Lesser, Elizabeth R. , Carrasquillo, Minerva M. , Ross, Owen A. , Ertekin‐Taner, Nilüfer , Graff‐Radford, Neill R. , Murray, Melissa E. , Hanna Al-Shaikh, Fadi S, Crook, Julia E. , Ross, Owen A , Murray, Melissa E , Duara, Ranjan , Carrasquillo, Minerva M. , Dickson, Dennis W.

Alzheimer's & Dementia | February 18, 2019 | Volume: 15 | Issue: 5 | Pages: 635-643

10.1016/j.jalz.2018.12.013 Get It

AbstractIntroductionOur primary goal was to examine demographic and clinicopathologic differences across an ethnoracially diverse autopsy‐confirmed cohort of Alzheimer's disease cases.MethodsA retrospective study was conducted in the Florida Autopsied Multi‐Ethnic cohort on 1625 Alzheimer's disease cases, including decedents who self‐reported as Hispanic/Latino (n = 67), black/African American (n = 19), and white/European American (n = 1539).ResultsHispanic decedents had a higher frequency of family history of cognitive impairment (58%), an earlier age at onset (median age of 70 years), longer disease duration (median of 12 years), and lower MMSE proximal to death (median of 4 points) compared with the other ethnoracial groups. Black decedents had a lower Braak tangle stage (stage V) and higher frequency of coexisting hippocampal sclerosis (21%); however, only hippocampal sclerosis differences survived adjustment for sex, age at onset, and disease duration. Neither Thal amyloid phase nor coexisting Lewy body disease differed across ethnoracial groups.DiscussionDespite a smaller sample size, Hispanics demonstrated longer disease duration with Alzheimer's disease, but not greater lifespan. Neuropathologic differences across ethnoracial groups supported differences in tau pathology distribution and coexisting hippocampal sclerosis, which may impact biomarker studies.
Perspectives on ethnic and racial disparities in Alzheimer's disease and related dementias: Update and areas of immediate need
Quiroz, Yakeel T. , Albensi, Benedict C. , Astell, Arlene , Babiloni, Claudio , Bahar‐Fuchs, Alex , Bowman, Gene L. , Chételat, Gaël , Ciro, Carrie , Cohen, Ann D. , Dilworth‐Anderson, Peggye, Dreux, Simone, Edland, Steven D. , Esbensen, Anna J. , Ewers, Michael , Fargo, Keith N. , Fortea, Juan , González, Héctor M. , Gustafson, Deborah , Head, Elizabeth , Hendrix, James A. , Hofer, Scott M. , Johnson, Leigh , Jutten, Roos J. , Kilborn, Kerry, Martins, Ralph N. , Morris, Martha Clare , Murray, Melissa E. , Parra, Mario A. , Roe, Catherine M. , Santos, Octavio A. , Scarmeas, Nikolaos , Schneider, Lon S. , Schupf, Nicole , Sikkes, Sietske A.M. , Snyder, Heather M. , Sohrabi, Hamid R. , Strydom, André , Muñiz‐Terrera, Graciela , Teunissen, Charlotte E. , Lent, Debora Melo van , Weinborn, Michael , Wesselman, Linda M.P. , Arenaza-Urquijo, Eider, Teunissen, Charlotte E , Fortea, Juan , Murray, Melissa E , Babulal, Ganesh M. , Arenaza‐Urquijo, Eider M. , Bell, J. Simon , Brickman, Adam M. , Dodge, Hiroko Hayama , Evered, Lisbeth Anne , Gonzalez, Hector M , Lanctôt, Krista L. , Manly, Jennifer J. , Mielke, Michelle M. , Oh, Esther S , Rissman, Robert A. , Stern, Yaakov , Tang, Yi , Wilcock, Donna M. , Zetterberg, Henrik , O’Bryant, Sid E. , Head, Elizabeth , Cohen, Annie

Alzheimer's & Dementia | December 13, 2018 | Volume: 15 | Issue: 2 | Pages: 292-312

10.1016/j.jalz.2018.09.009 Get It

Abstract Alzheimer's disease and related dementias (ADRDs) are a global crisis facing the aging population and society as a whole. With the numbers of people with ADRDs predicted to rise dramatically across the world, the scientific community can no longer neglect the need for research focusing on ADRDs among underrepresented ethnoracial diverse groups. The Alzheimer's Association International Society to Advance Alzheimer's Research and Treatment (ISTAART; alz.org/ISTAART ) comprises a number of professional interest areas (PIAs), each focusing on a major scientific area associated with ADRDs. We leverage the expertise of the existing international cadre of ISTAART scientists and experts to synthesize a cross‐PIA white paper that provides both a concise “state‐of‐the‐science” report of ethnoracial factors across PIA foci and updated recommendations to address immediate needs to advance ADRD science across ethnoracial populations.
P3‐458: CLINICOPATHOLOGIC DIFFERENCES WITHIN ALZHEIMER'S DISEASE CASES FROM THE FLORIDA AUTOPSIED MULTI‐ETHNIC (FLAME) STUDY
Santos, Octavio A. , Duara, Ranjan , Lucas, John A. , Greig‐Custo, Maria T., Liesinger, Amanda M., Al‐Shaikh, Fadi S. Hanna , Ertekin‐Taner, Nilüfer , Pedraza, Otto , Graff‐Radford, Neill R. , Duara, Ranjan , Ross, Owen A. , Dickson, Dennis W. , Murray, Melissa E.

Alzheimer's & Dementia | October 22, 2018 | Volume: 14 | Issue: 7S_Part_24 | Pages: No page available

10.1016/j.jalz.2018.06.1822 Get It