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.

In it Together: Relationship Transitions and Couple Concordance in Health and Well-Being.

Events that change the family system have the potential to impact couple dynamics such as concordance, that is, partner similarity in health and well-being. This project analyzes longitudinal data (≥ two decades) from both partners of up to 3,501 German and 1,842 Australian couples to investigate how couple concordance in life satisfaction, self-rated health, mental health, and physical health might change with transitioning to parenthood and an empty nest. Results revealed couple concordance in intercepts (averaged r = .52), linear trajectories (averaged r = .55), and wave-specific fluctuations around trajectories (averaged r = .21). Concordance in linear trajectories was stronger after transitions (averaged r = .81) than before transitions (averaged r = .43), whereas no systematic transition-related change in concordance of wave-specific fluctuations was found. Findings emphasize that shared transitions represent windows of change capable of sending couples onto mutual upward or downward trajectories in health and well-being.

The Role of Relationship Conflict for Momentary Loneliness and Affect in the Daily Lives of Older Couples.

Background: Intimate partner relationships foster individuals' well-being throughout the lifespan. However, dissatisfying or conflict-laden relationships can have a detrimental impact on well-being and relationship quality. The majority of older adults live together with a spouse/partner, and intimate relationships are one of the most important social contexts in their daily lives. Purpose: Expanding on previous research, we examined the role of previous conflict on experiences of loneliness and affect in the daily lives of older partners from a dyadic perspective. Relationship duration and quality, personality traits (neuroticism and extraversion), conflict frequency during the measurement period, physical health as well as age were considered as moderators. Study Sample and Data Analysis: We used data from an experience sampling study with 151 older heterosexual couples (302 participants; 65+ years old) reporting on their positive and negative affect, loneliness, and previous experience of relationship conflict 6 times a day for 14 days. Data were analyzed using dyadic multilevel models. Results: For both men and women within couples, previous conflict was associated with an increased experience of negative affect and loneliness and a decreased experience of positive affect. Higher neuroticism predicted less positive and more negative affect following conflict for women and more loneliness for men. Higher relationship satisfaction predicted less increase in negative affect after conflict for female partners. Age, relationship duration, physical health, extraversion, and the number of conflict episodes showed no moderating effects. Conclusions: Our results support the notion that relationship conflict deteriorates emotional well-being in old age and renders older adults lonelier even in the context of intimate partner relationships.

Disentangling self-concept clarity and self-esteem in young adults.

Self-concept clarity and self-esteem are powerful determinants of people's thoughts, feelings, and behaviors. Yet, even after over 30 years of research, the conceptual and empirical ties between these two self-aspects remain understudied, and little is known about the nature and function of their relationship. The present study aimed at discerning the empirical similarities and differences between self-concept clarity and self-esteem in order to examine whether they can be considered sibling constructs that are conceptually and empirically related, but not identical. Specifically, we used multivariate eight-wave longitudinal data from two cohorts of young adults (Cohort 1, N = 460; Cohort 2, N = 412) to examine the structural, cross-sectional, and longitudinal links between self-concept clarity and self-esteem, as well as their incremental validity and within-person transactions over time. We found strong evidence that self-concept clarity and self-esteem are not the same but sibling constructs. Specifically, both self-aspects were as follows: (a) structurally different and (b) cross-sectionally related, (c) shared similar but not identical developmental trajectories, (d) codeveloped over time, (e) demonstrated incremental validity in the prediction of important life outcomes, and (f) demonstrated distinctive within-person associations over time. Overall, the present study provides the most comprehensive demonstration that self-concept clarity and self-esteem are similar but different in several meaningful ways, which is of crucial importance for theory, research, and practice. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Rehabilitation Through Physical Activity and Sport in Light of the International Classification of Functioning, Disability, and Health-Current Research Perspectives.

The implementation of functioning by the World Health Organization (WHO) as the third global health indicator, along with mortality and morbidity, represents a promising advancement for a comprehensive assessment of international health systems and health strategies. The description of a person's health state operationalized by both biological and lived health via functioning provides a holistic picture of an individual's life situation and proved to be successful in building a framework for formulating therapy goals, achievable activities, and participational aspects against the background of an individual's life situation. Furthermore, improving an individual's functional ability and wellbeing could potentially affect the health indicators of morbidity and mortality and will be codable beyond the ICF in ICD-11. This methodological perspective emphasizes the use of ICF applications on the wider and narrower level of international rehabilitation systems and highlights the incorporation of the term functioning in rehabilitation through physical activity and sport. Current research perspectives in applying the ICF and functioning in clinical and rehabilitation practices are discussed and a current explorative study is presented, which applies the holistic orientation of functioning and the biopsychosocial model to the specific case by an individualized sports coaching intervention in rehabilitation. Subsequently, a unifying ICF- oriented language in rehabilitation is considered as a powerful foundation for a consistent international research strategy concerning increased international collaborations and future research perspectives.

Affect contagion in daily life is mediated by perceptions of partner affect: An experience-sampling study with older couples.

Intimate relationship partners dynamically covary in their affective states. One mechanism through which intimate relationship partners experience and shape each other's affective states is affect contagion, that is, the spread of affective states from one person to another. Most studies on affect contagion in daily life focused on younger couples. Also, the degree to which social-cognitive processes are involved in everyday affect contagion remains unclear. Intimate relationships are one of the most important social contexts in older adults' daily lives. Expanding on previous research, we focused on affect contagion in older couples, and examined whether processes of affect contagion were mediated by perceptions of partner affect, that is, how individuals thought their partners felt at previous moments. We used data from an experience sampling study with 152 older heterosexual couples (304 participants; 65 + years old) who reported on their positive and negative affect, perceptions of their partner's positive and negative affect, and presence or absence of partners 6 times a day for 14 days. Dyadic multilevel mediation models were used to evaluate our hypotheses. We observed consistent evidence that processes of positive affect contagion between partners were mediated by perceptions of partner's affective states. Negative affect contagion was directed from men to women, but not vice versa, and mediated by perceptions of partner's affective states. Partner presence was unrelated to processes of affect contagion. Our findings support the notion that (perceptions of) close others' emotions shape our own feelings and identify partner perceptions as a mechanism of affect contagion. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Co-development of Couples' Life Satisfaction in Transition to Retirement: A Longitudinal Dyadic Perspective.

OBJECTIVES: Retirement is one of the major life course transitions in old age. Evidence suggests that exiting work life is associated with notable changes in life satisfaction, which are heterogeneous across individuals. Effects of retirement transitions on life satisfaction have been understudied in couples. We examined change in life satisfaction with retirement for retirees and their spouses/partners, the extent to which change in life satisfaction was heterogeneous and correlated within couples, and associations with health status and social participation. METHOD: We used data from the German Socioeconomic Panel obtained in the years 1984 to 2016 (n = 2,117 couples; 74% male retirees; age at retirement: M = 61 years, SD = 3 years, range = 55 to 70 years; 98% married or in a registered relationship). We examined health and social participation of retirees and their partners as predictor variables and controlled for age, gender, education, partner employment, household income, and region in Germany (former East vs West). Data were analyzed with dyadic multilevel two-phase growth curve models. RESULTS: On average, both retirees and partners reported increasing life satisfaction at retirement. Change in life satisfaction was heterogeneous across individuals and highly correlated within couples. Health and social participation were associated with levels of, but not with change in life satisfaction with retirement in retirees and partners. DISCUSSION: Retirement is not a uniform period of transition, but is shaped by the multidimensional context in which life unfolds. Moreover, life satisfaction can be shaped in response to life transitions experienced by close others.

Folding and Unfolding of the Short Light-Triggered ß-Hairpin Peptide AzoChignolin Occurs within 100 ns.

To map the underlying molecular mechanisms of folding dynamics in proteins, light-operated peptides have emerged as promising tools. In this study, we reveal the complete sequence of light-induced structural changes of AzoChignolin, a short ß-hairpin peptide containing an azobenzene photoswitch in its loop region. Light-triggered structural changes were monitored by time-resolved IR spectroscopy. Formation and destruction of the hairpin structure is very fast and occurs within 100 ns for AzoChignolin in methanol. Atomistic molecular dynamics simulations using two explicit solvents, methanol and water, revealed the underlying molecular processes and allowed us to gain further insight into the reaction mechanism. Despite its rapid reaction time, hairpin formation in these solvents is not force-driven by the molecular switch but proceeded via formation of interstrand hydrogen bonds and contacts between aromatic residues. Moreover, the combined experimental and theoretical study demonstrates that the solvent (methanol vs water) does not dictate the velocity of ß-hairpin formation in the AzoChignolin peptide comprising only a few hydrophobic residues in the strands.

Adolescent Onset of Maternal Substance Abuse: Descriptive Findings from a Feasibility Trial.

Although maternal substance abuse in child welfare populations is a well-documented occurrence, little is known about the onset of these behaviors or the substance abuse histories of these mothers. Descriptive data from a small feasibility trial of mothers referred for substance abuse and child neglect suggest adolescent onset of hard substance use. Age of onset was associated with family history of use. The majority of mothers reported polysubstance abuse starting at an early age and quickly escalating patterns of behavior including IV drug use. Implications for prevention efforts for children of families identified with substance abuse problems are discussed.