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ORIGINAL RESEARCH article

Front. Aging Neurosci.
Sec. Neurocognitive Aging and Behavior
Volume 16 - 2024 | doi: 10.3389/fnagi.2024.1512947
This article is part of the Research Topic Early Dementia Detection: Memory, Cortical Function, and Biomarkers in the Classification of High-Risk Pre-Dementia Individuals in the Healthy Aging People View all 3 articles

Tablet-based Self Assessment Memory Scale-Revised (SAMS-R) Evaluates Memory Functions for Older Adults

Provisionally accepted
Hisatomo Kowa Hisatomo Kowa 1*Ryoko Kumagai Ryoko Kumagai 1Yutaro Oki Yutaro Oki 1Miki Imamura Miki Imamura 2Yuka Suzuki Yuka Suzuki 2
  • 1 Graduate School of Health Sciences, Kobe University, Kobe, Hyōgo, Japan
  • 2 OMRON HEALTHCARE Co., Ltd., Kyoto, Japan

The final, formatted version of the article will be published soon.

    Background: The demand for more accurate and early diagnosis of mild cognitive impairment (MCI) patients due to Alzheimer's disease (AD) has increased after disease-modifying drugs were launched. Among these needs, there is a requirement for tools that can easily assess the ability to recall memories, which changes early in the disease.Objectives: We established Self Assessment Memory Scale (SAMS) method before, which includes 8-picture recall test and 16-word recognition test. We adopted this method to software that can be operated on a tablet computer so that participants can perform the method independently. The purpose of this study was to validate this method.Design: Cross sectional research.Setting: Some of the participants were recruited from hospitals for patients diagnosed with AD or MCI. The others were recruited from three regional cohorts of healthy older adults.Participants: The total number of participants was 304 (20 of whom had AD or MCI), and the mean age was 71.2 years. 64% of the participants were women.Measurements: We used the logical memory subtest of the WMS-R as the standard for memory evaluation and assessed the relationship between this score and the SAMS score calculated by the software.Results: The 2nd SAMS score were higher than the 1st SAMS score in some participants, on the other hand, the intraclass correlation coefficient was good. Since the number of false recognition in the 16-word recognition test was higher in participants with lower LM II scores, we developed a new score to reflect the ratio of false recognition, SAMS-R, and we observed it has good correlation with LM II. The mean SAMS-R score decreased gradually after the age of 65 years, indicating that agerelated changes in memory recall can be detected. The ROC curve analysis was conducted to evaluate the detectability to determine whether if the WMS-R LM II score is above or below 10, showing that the AUC was greater than 0.9.Conclusions: SAMS-R, which can be performed on a tablet literally by himself/herself independently, shows a high correlation with the WMS-R Logical Memory II score, and has the advantage of being performed in a short time by hiim/herself.

    Keywords: digital cognitive assessments, memory function, WMS-R logical memory, mild cognitive impairment (MCI), Alzheimer's disease

    Received: 17 Oct 2024; Accepted: 24 Dec 2024.

    Copyright: © 2024 Kowa, Kumagai, Oki, Imamura and Suzuki. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Hisatomo Kowa, Graduate School of Health Sciences, Kobe University, Kobe, 654-0142, Hyōgo, Japan

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