%0 Journal Article %@ 2561-7605 %I JMIR Publications %V 3 %N 2 %P e19852 %T Smartphone-Based Experience Sampling in People With Mild Cognitive Impairment: Feasibility and Usability Study %A Bartels,Sara Laureen %A van Knippenberg,Rosalia J M %A Malinowsky,Camilla %A Verhey,Frans R J %A de Vugt,Marjolein E %+ Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Alzheimer Centre Limburg, Maastricht University, Dr. Tanslaan 12, Nivo 4, Maastricht, 6229 ET, Netherlands, 31 387 41 75, sara.bartels@maastrichtuniversity.nl %K experience sampling method %K mild cognitive impairment %K cognition %K feasibility %K smartphones %D 2020 %7 16.10.2020 %9 Original Paper %J JMIR Aging %G English %X Background: Daily functioning of people with cognitive disorders such as mild cognitive impairment (MCI) is usually depicted by retrospective questionnaires, which can be memory-biased and neglect fluctuations over time or contexts. Objective: This study examines the feasibility and usability of applying the experience sampling method (ESM) in people with MCI to provide a detailed and dynamic picture of behavioral, emotional, and cognitive patterns in everyday life. Methods: For 6 consecutive days, 21 people with MCI used an ESM app on their smartphones. At 8 semi-random timepoints per day, participants filled in momentary questionnaires on mood, activities, social context, and subjective cognitive complaints. Feasibility was determined through self-reports and observable human-technology interactions. Usability was demonstrated on an individual and group level. Results: Of the 21 participants, 3 dropped out due to forgetting to carry their smartphones or forgetting the study instructions. In the remaining 18 individuals, the compliance rate was high, at 78.7%. Participants reported that momentary questions reflected their daily experiences well. Of the 18 participants, 13 (72%) experienced the increase in awareness of their own memory functions as pleasant or neutral. Conclusions: Support was found for the general feasibility of smartphone-based experience sampling in people with MCI. However, many older adults with MCI are currently not in possession of smartphones, and study adherence seems challenging for a minority of individuals. Momentary data can increase the insights into daily patterns and may guide the person-tailored development of self-management strategies in clinical settings. %M 33064084 %R 10.2196/19852 %U http://aging.jmir.org/2020/2/e19852/ %U https://doi.org/10.2196/19852 %U http://www.ncbi.nlm.nih.gov/pubmed/33064084