Charting everyday activities in later life: Study protocol of the mobility, activity, and social interactions study (MOASIS)

Distance from home and working memory: daily associations varying by neighborhood environments in community-dwelling older adults

Out-of-home mobility and neighborhood environment have been, respectively, shown to be associated with older adults' cognitive abilities and they may have combined effects. Adopting an ecological perspective to mobility-cognition associations, this study examined daily maximum distance from home in relation to daily working memory performance in community-dwelling older adults and the moderation effect of neighborhood environments. Analyses included data over 947 days from 109 Swiss older adults aged 65 to 89 years. Over two weeks, participants wore a custom-built mobile GPS tracker and completed a smartphone-based numerical memory updating task seven times per day. Daily maximum distance from home was extracted from the GPS data. Neighborhood environments were assessed with the Neighborhood Environment Walkability Scale at baseline. Multilevel models showed that maximum distance from home was not associated with working memory performance, but there were cross-level moderation effects of neighborhood environments. Daily maximum distance from home was positively (vs. negatively) associated with daily working memory performance in participants who lived in neighborhoods with more (vs. fewer) places for walking and cycling and higher (vs. lower) land use mix-diversity. Out-of-home mobility and neighborhood environment could have combined effects on older adults' cognitive abilities. Neighborhoods with more places for walking and biking or having a higher mixture of land use could enhance a positive association between traveling a far distance from home and working memory performance.

Cognitive abilities predict naturalistic speech length in older adults

Past research has demonstrated the association between social engagement and the maintenance of cognitive abilities. However, inconsistent definitions of social engagement have posed challenges to systematically investigate this association. This paper addresses the role of social relationships in cognitive functioning among older adults, focusing on the real-life communication indicator-length of own speech-as a measure of social activity. Utilizing advanced technology to unobtrusively measure older adults' real-life speech, this study investigates its association with various cognitive abilities and sociodemographic factors. Differential cognitive measures, and sociodemographic data including factors like age, sex, education, income, persons living in the same household, loneliness, and subjective hearing status were included. Audio data of 83 participants are analyzed with a machine learning speaker identification algorithm. Using Elastic Net regularized regression, results indicate that higher levels of working memory, cognitive speed, and semantic fluency predict own speech in everyday life. While having no partner negatively predicted own speech length, we unexpectedly found that higher hearing status was related to lower speech frequency. Age was neither a relevant predictor in the regression nor correlated with any other variables. We discuss implications and future research applications based on the findings from our novel approach.

Impact of health information seeking behavior and digital health literacy on self-perceived health and depression symptoms among older adults in the United States

BACKGROUND

Understanding the impact of digital health literacy and health information-seeking behavior on the self-perceived health and depression symptoms of older adults is crucial, particularly as the number of older internet users is increasing.

METHODS

This study utilized data from the Health Information National Trends Survey to examine the relationship between these factors and the health outcomes of adults aged 50 and above.

RESULTS

The study found that digital health literacy has a positive but non-significant relationship with self-perceived health when other factors are considered. However, education level and body mass index consistently predicted self-perceived health. Moreover, higher digital health literacy was associated with a reduced likelihood of perceived depression symptoms, even after adjusting for demographic and health-related factors.

CONCLUSIONS

These findings highlight the importance of digital health literacy in the mental well-being of older adults and provide insights for shaping future health policies and interventions.

Routineness of Social Interactions Is Associated With Higher Affective Well-Being in Older Adults

OBJECTIVES

Some research conceptualizes routineness of daily life as an indicator of cognitive vulnerability that would lead to lower well-being in older age, whereas other research expects routineness to give rise to more meaning and stability in life and thus to higher well-being. Further research is needed to understand routineness in older adults in relation to cognitive abilities and well-being. This study examined routineness of social interactions.

METHODS

We examined data from an event-contingent experience sampling study with 103 Swiss community-dwelling older adults (aged 65 to 84 years). Participants completed in-lab cognitive assessments (reasoning, episodic memory, speed, and vocabulary) and reported their well-being (positive affect, negative affect, and life satisfaction). For more than 21 days, participants reported the time and context of their social interactions (including modality, partner type, and location). Routineness of social interactions was defined as social interactions that occurred at the same time of day over the study period. It was calculated using recurrence quantification analysis.

RESULTS

Linear regressions showed that higher routineness of social interaction in general, of social interaction through the same modality, and of social interaction with the same partner type were associated with higher positive affect. Higher routineness of social interaction in general was associated with lower negative affect. Routineness of social interactions was not associated with life satisfaction or cognitive abilities.

DISCUSSION

A routine social life may increase older adults' affective well-being. Results are discussed in the context of activity engagement and time use in older age.

The Mediating Role of Affective States in Short-Term Effects of Activity Engagement on Working Memory in Older Age

INTRODUCTION

It has been shown that activity engagement is associated with cognitive ability in older age, but mechanisms behind the associations have rarely been examined. Following a recent study which showed short-term effects of activity engagement on working memory performance appearing 6 h later, this study examined the mediating role of affective states in this process.

METHODS

For 7 times per day over 2 weeks, 150 Swiss older adults (aged 65-91 years) reported their present (sociocognitive/passive leisure) activities and affective states (high-arousal positive, low-arousal positive, high-arousal negative, and low-arousal negative) and completed an ambulatory working memory task on a smartphone.

RESULTS

Multilevel vector autoregression models showed that passive leisure activities were associated with worse working memory performance 6 h later. Passive leisure activities were negatively associated with concurrent high-arousal positive affect (and high-arousal negative affect); high-arousal positive affect was negatively associated with working memory performance 6 h later. A Sobel test showed a significant mediation effect of high-arousal positive affect linking the time-lagged relationship between passive leisure activities and working memory. Additionally, sociocognitive activities were associated with better working memory performance 6 h later. Sociocognitive activities were associated with concurrent higher high- and low-arousal positive affect, which, however, were not associated with working memory performance 6 h later. Thus, a mediation related to sociocognitive activities was not found.

DISCUSSION

Passive leisure activities could influence working memory performance through high-arousal positive affect within a timeframe of several hours. Results are discussed in relation to an emotional, and possibly a neuroendocrine, pathway explaining the time-lagged effects of affective states on working memory performance.

Social Support and Commitment to Life and Living: Bidirectional Associations in Late Life over Time

OBJECTIVES

This study aims to enhance the understanding of longitudinal associations between two important facets of well-being in late life: social support and commitment to life and living (CTL).

METHODS

Structured home interviews were conducted with 824 Israelis ≥75 years of age, with three annual data collection timepoints. We hypothesized and tested a cross-lagged, longitudinal structural equation model (SEM) in which CTL and social support were assumed to predict each other over time, covarying for previously reported CTL and social support.

RESULTS

Social support has a positive, contemporaneous effect, predicting commitment to living at T1 and T3, while CTL predicts social support the following year (i.e., T1-T2 & T2-T3). Satisfaction with relationships significantly contributes to measurement of both latent constructs at each point of data collection.

DISCUSSION

Commitment to life and living and social support are intertwined phenomena. Whereas social support has a concomitant effect on CTL, the effect of CTL on social support emerges over time. This suggests that greater social support fosters greater CTL, leading older adults to nurture social networks and relationships; the effect of which is greater social support in the future. The implications of these results warrant further research over longer periods and across cultures.