Selective Engagement in Preparations for Aging

OBJECTIVES

Preparing for old age is an adaptive behavior with positive consequences on well-being. This study examined; (a) the degree to which the importance associated with positive outcomes within specific domains of everyday functioning (e.g., social relationships, health) varies across ages and cultures; (b) the impact of importance on preparing for old age; and (c) whether the effects of importance were greater in later life.

METHODS

Using data from adults aged 30-85 years in Germany (n = 623), Hong Kong (n = 317), and the United States (n = 313) collected over 5 years, we examined variations in importance ratings across age, cultures, and behavioral domains, and the extent to which age and importance predicted preparations.

RESULTS

Importance ratings were found to vary with age, time of test, domains, and culture, reflecting the expected contextual effects. Importance also was a positive predictor of preparations, with the strength of prediction being somewhat greater in old age.

DISCUSSION

The results provide evidence that the perceived importance of functioning within domains is affected by a number of contextual factors, including the domain of everyday function and culture. Given that importance also predicts preparations, such variation may help explain differences in preparations across contexts. In line with selective engagement theory, some support was also obtained for the prediction that older adults are more selective in engaging resources in support of preparations. Such selectivity can be viewed as an adaptive response to diminishing personal resources in later life.

Do we all perceive experiences of age discrimination in the same way? Cross-cultural differences in perceived age discrimination and its association with life satisfaction

Age discrimination is pervasive in most societies and bears far-reaching consequences for individuals' psychological well-being. Despite that, studies that examine cross-cultural differences in age discrimination are still lacking. Likewise, whether the detrimental association between age discrimination and psychological well-being varies across contexts remains an open question. In this study, therefore, we examined cross-cultural differences in perceived experiences of age discrimination and their detrimental association with a specific indicator of psychological well-being, which is life satisfaction. The sample was drawn from the Ageing as Future study and comprised 1653 older adults (60-90 years) from the Czech Republic, Germany, Hong Kong, Taiwan, and the USA. Participants self-reported their experiences of age discrimination and their life satisfaction. Findings indicated that participants from Hong Kong and Taiwan reported experiences of perceived age discrimination more often than participants from the Czech Republic, Germany, and the USA. Furthermore, experiences of age discrimination were negatively associated with life satisfaction. Cultural context moderated this relation: We found a smaller detrimental association between perceived experiences of age discrimination and life satisfaction in Eastern cultures, that is, in contexts where such experiences were perceived to be more prevalent. These findings highlight the importance of examining age discrimination across cultures. Experiences of age discrimination are clearly undesirable in that they negatively affect psychological well-being. Our results indicate that a higher self-reported prevalence of perceived age discrimination in the samples studied weakens this negative association. We discuss these findings in terms of adaptation (versus sensitization) in response to discrimination.

A Wearable System for Continuous Monitoring and Assessment of Speech, Gait, and Cognitive Decline for Early Diagnosis of ADRD

Early detection of cognitive decline is essential to study mild cognitive impairment and Alzheimer's Disease in order to develop targeted interventions and prevent or stop the progression of dementia. This requires continuous and longitudinal assessment and tracking of the related physiological and behavioral changes during daily life. In this paper, we present a low cost and low power wearable system custom designed to track the trends in speech, gait, and cognitive stress while also considering the important human factor needs such as privacy and compliance. In the form factors of a wristband and waist-patch, this multimodal, multi-sensor system measures inertial signals, sound, heart rate, electrodermal activity and pulse transit time. A total power consumption of 2.6 mW without any duty cycling allows for more than 3 weeks of run time between charges when 1500 mAh batteries are used.Clinical Relevance- Much earlier detection of Alzheimer's disease and related dementias may be possible by continuous monitoring of physiological and behavioral state using application specific wearable sensors during the activities of daily life.

Contact with older adults is related to positive age stereotypes and self-views of aging: The older you are the more you profit

OBJECTIVES

Past studies showed that intergenerational contact is beneficial in improving attitudes toward older people. To date, however, research on the benefits of contact with older adults focused on younger adults (intergenerational contact), overlooking the effects for older adults (contact with same-age peers). In this study we investigated the association between contact with older adults and views of the self in old age in a domain-specific way among younger and older adults.

METHODS

The sample (n = 2,356) comprised younger (39-55 years) and older (65-90 years) adults who participated in the Ageing as Future study and were from China (Hong Kong and Taiwan), the Czech Republic, Germany, and the United States. We used moderated mediation models for data analysis.

RESULTS

Contact with older adults was related to more positive views of the self in old age and this effect was mediated by more positive stereotypes of older people. These relations were stronger for older adults. Beneficial effects of contact with older adults emerged mostly in the domains of friends and leisure, but less in the family domain.

DISCUSSION

Having interactions with other older adults may help favorably shape how younger adults and particularly older adults view their own aging, especially in relation to friends and leisure activities. From the perspective of older adults, having regular contacts with other older adults may increase the heterogeneity of exposure to different aging experiences, thus encouraging the formation of more differentiated stereotypes of older people and of their views of themselves in old age.

Biases in Retrospective Perceptions of Changes in Well-Being Associated With Aging Attitudes

OBJECTIVES

Aging attitudes have important consequences on functioning in later life. A critical question concerns whether such attitudes may bias perceptions of one's own aging, with potentially negative effects on important outcomes.

METHODS

Using data from adults aged 30-85 years in Germany (n = 623), Hong Kong (n = 317), and the United States (n = 313), we examined the impact of age and aging attitudes on accuracy of perceptions of change in well-being over 5 years in different domains of functioning.

RESULTS

Across contexts, comparisons revealed good correspondence between retrospective reports and actual change. However, older adults and those with negative attitudes retrospectively reported less positive change over this period. Inconsistent with expectations, attitudes did not consistently bias accuracy of retrospective reports over cultures and domains of functioning, nor did age have a consistent moderating effect on the impact of attitudes on accuracy.

DISCUSSION

The results highlight the complex relationship between various personal characteristics and perceptions of change in well-being, as well as the potentially insidious effects of attitudes on the accuracy of these perceptions.

What will you do with all that time? Changes in leisure activities after retirement are determined by age-related self-views and preparation

Retirement is a normative life transition that liberates the individual from the external obligations of employment, being a catalyzer of leisure activity engagement. However, the individual's motivations to engage in leisure activities in the time that is gained after retirement may depend on their future self-views (i.e., views of their own ageing) as well as on their levels of preparation for age-related changes. In this study, therefore, we aim to examine longitudinal changes in levels of engagement in leisure activities that occur around the age of retirement as being influenced by views on ageing and preparation for old age. The sample consisted of 451 persons aged 50-65 years at baseline who participated in the Ageing as Future study at two time points 5 years apart. Participants were split in three age-matched groups: recently retired (in between baseline and follow-up), already retired (at baseline), and individuals who were still working (at follow-up). Findings indicated that changes in levels of leisure differed between groups. Compared to both already retired and still working participants, recently retired participants increased their levels of engagement in leisure activities. Positive views on ageing in the leisure domain (at baseline) predicted subsequent increases in activity levels but group and levels of preparation qualified this effect. A combination of positive views on ageing and preparation for age-related changes is needed for one to make use of the time that is gained with retirement, highlighting their role as determinants of behavior in response to normative life events in later life.

Aging attitudes and changes in the costs of cognitive engagement in older adults over 5 years

The costs associated with performing a specific activity may play an important role in determining engagement, potentially impacting the willingness of older adults to engage in activities-particularly those with high demands-that may have benefits for physical and cognitive health. The present study examined changes in both objective (effort expenditure) and subjective (perceived task demands) costs associated with engagement in a cognitively challenging memory-scan task across a 5-year period in 163 older adults aged 64-81. Consistent with assumptions of selective engagement theory (SET; Hess, 2014), the effort associated with performing the task-as assessed by systolic blood pressure responses-was observed to increase over time. Subjective assessments of costs, as assessed by the National Aeronautics and Space Administration task load index (NASA TLX), were also observed to increase. In addition, the increases in both objective and subjective costs were greatest at high levels of task demands. We further found that both the effort and, to a lesser extent, perceived costs associated with performance were moderated by aging attitudes. Specifically, more positive attitudes were associated with greater effort expenditure and lower perceived costs. These findings suggest that negative attitudes about aging may have detrimental effects on perceived ability to perform challenging tasks. Given the importance of costs in determining activity participation, promoting positive aging attitudes along with more realistic perceptions of task demands may provide important means for promoting engagement in beneficial activities. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Antecedents and Consequences of Endorsing Prescriptive Views of Active Aging and Altruistic Disengagement

In this study, we investigated endorsement of two types of prescriptive views of aging, namely active aging (e.g., prescriptions for older adults to stay fit and healthy and to maintain an active and productive lifestyle) and altruistic disengagement (e.g., prescriptions for older adults to behave altruistically toward the younger generation by granting young people access to positions and resources). The study comprised a large international sample of middle-aged and older adults (N = 2,900), covering the age range from 40 to 90 years. Participants rated their personal endorsement of prescriptive views of active aging and altruistic disengagement targeting older adults in general (i.e., "In my personal opinion, older adults should…"). Findings showed that endorsement was higher for prescriptions for active aging than for prescriptions for altruistic disengagement. Age groups in the sample differed regarding their endorsement of both prescriptive views of active aging and altruistic disengagement with older adults showing higher endorsement than middle-aged adults did. Prescriptive views of active aging and altruistic disengagement related positively to each other and to the superordinate social belief that older adults should not become a burden, which attests to their functional similarity. In contrast, prescriptive views of active aging and altruistic disengagement were associated with psychological adjustment in opposite ways, with endorsement of active aging (vs. altruistic disengagement) being related to better (vs. worse) adjustment outcomes such as life satisfaction and subjective health. Our findings highlight the internalization of prescriptive views of aging in older people and their implications for their development and well-being.

Effort Mobilization and Healthy Aging

Healthy aging is in part dependent upon people's willingness and ability to mobilize the effort necessary to support behaviors that promote health and well-being. People may have the best information relating to health along with the best intentions to stay healthy (e.g., health-related goals), but positive outcomes will ultimately be dependent upon them actually investing the necessary effort toward using this information to achieve their goals. In addition, the influences on effort mobilization may vary as a function of physical, psychological, and social changes experienced by the individual across the life span. Building on the overall theme of this special issue, we explore the relationships between motivation, effort mobilization, and healthy aging. We begin by characterizing the relationship between motivation and effort, and identify the factors that influence effort mobilization. We then consider the factors associated specifically with aging that may influence effort mobilization (e.g., changes in cardiovascular and neural mechanisms) and, ultimately, the health and well-being of older adults. Finally, distinguishing between those influential factors that are modifiable versus intractable, we identify ways to structure situations and beliefs to optimize mobilization in support of healthy aging.

Motivation and Healthy Aging: A Heuristic Model

Building on the seminal definition of "healthy aging" by the World Health Organization (WHO, 2015; 2020), we present a model of motivation and healthy aging that is aimed at identifying the central psychological constructs and processes for understanding what older persons value, and how they can attain and maintain these valued aspects of their lives. This model places goals at its center, and then proceeds from motivational processes of goal setting, pursuit, and disengagement, to contextual factors (cultural, social, technological, physical, organizational, and life-history related aspects) that provide opportunities and constraints to the healthy aging of individuals. We briefly introduce each of these constructs and processes, thereby setting the scene for the articles included in this supplement that each address one or more of the facets of the heuristic model of motivation and healthy aging.

Adult Age Differences in the Effects of Chronic Mental Fatigue on Task-Related Fatigue, Appraisals, and Performance

Engagement in potentially beneficial activities is assumed to be based partially on perceived costs and benefits. Mental fatigue may be one factor that affects perceived costs. We examined age differences in both chronic and situational mental fatigue, and their relation to task perceptions and engagement levels. Younger (M _age = 32.6) and older (M _age = 73.1) adults completed questionnaires measuring subjective mental fatigue, physical and mental health, and motivational states, along with several assessments of cognitive ability. In addition, assessments of effort expenditure (systolic blood pressure) and task difficulty were collected during performance of a cognitively demanding memory-scan task. Two components of chronic mental fatigue (CMF) relating to affect and motivation were identified. Although the structure of CMF did not vary with age, CMF was differentially predictive of engagement and appraisal levels across groups. As CMF-Affect levels increased, older adults' task-difficulty appraisals increased more than those of younger adults. In addition, CMF-Affect was positively associated with levels of engagement in the young, but negatively associated in the old as memory load increased. Older adults also exhibited higher levels of situational fatigue than did the young, as evidenced by increased levels of effort expenditure as both time on task and objective demands increased. However, little relationship existed between chronic and situational mental fatigue in either age group. These findings suggest that the affective aspect of CMF is particularly consequential in older adults, with both task appraisals and engagement levels being negatively affected when fatigue is high.

The effects of personality and aging attitudes on well-being in different life domains

OBJECTIVES

Personality plays a major role in determining the way people adjust to life experiences, ultimately affecting life satisfaction. Aging attitudes also impact well-being, but there is little research on whether these personality and attitudinal effects reflect the same mechanism. The purpose of this study was to examine whether aging attitudes mediate the relationship between personality and well-being across seven different domains of everyday functioning, and whether this effect depends on age.

METHODS

Data from 563 adults ranging in age from 30 to 89 were used. Sociodemographic information as well as the Big Five Inventory, aging attitudes, and well-being (i.e. current self-views and life satisfaction) in seven different life domains was assessed.

RESULTS

The mediating effect of aging attitudes in the relationship between personality and well-being was strong for neuroticism, conscientiousness, and agreeableness and varied across domains. Significant mediation effects were limited for openness and extraversion. Significant moderated mediations were rather limited but the effects were stronger in later life.

DISCUSSION

These results suggest that personality influences aging attitudes, which in turn affect well-being. Further, our results indicate that such relationships are context-specific, suggesting that the global assessments of attitudes and well-being may not fully characterize significant aging outcomes.

Domain-Specific Views on Aging and Preparation for Age-Related Changes-Development and Validation of Three Brief Scales

OBJECTIVES

We developed brief versions of our questionnaires to assess domain-specific views on aging (age stereotypes and future self-views) and preparation for age-related changes.

METHODS

The brief scales were validated in an online study with N = 301 participants aged 23-88 years.

RESULTS

Mean values across domains show a differentiated picture for all 3 constructs, yielding evidence for the multidimensionality of views on aging and preparation for age-related changes. Rating profiles for the brief versions were similar to the long versions of the questionnaires, attesting to the equivalence of the brief and long scales. Within-domain correlations between the 3 constructs were also higher than between-domain correlations, further substantiating the claim of domain-specificity with regard to the predictive validity of the brief scales.

DISCUSSION

The new brief versions of the scales can be recommended for a differentiated assessment of views on aging and preparation for age-related changes when short forms of measurement are required.

Age-Related Attributions of Experienced Changes in Life: Origins and Implications

Objectives

Attributing life changes to age represents a core marker of the subjective experience of aging. The aims of our study were to investigate views on aging (VA) as origins of age-related attributions of life changes and to investigate the implications of these age-related attributions for personal control (PC) and life satisfaction (LS).

Methods

Life changes and the attribution of life changes to age were independently assessed on a large international sample of older adults (N = 2,900; age range 40–90 years) from the Ageing as Future project. The valence of VA, PC, and LS were also assessed to investigate possible determinants (VA) and consequences (PC and LS) of age-related attributions of life changes.

Results

Attributions to age were shown to depend on the valence of experienced life changes, with more negative changes being linked to more age-related attributions. This relation was moderated by the valence of personally held VA, with more negative VA amplifying the relation between negative life changes and age-related attributions. Age-related attributions predicted reduced PC and lower LS and were found to exacerbate the effects of negative life changes on LS, especially for the older cohorts of our sample.

Discussion

Our findings help to better understand what determines age-related attributions of life changes and highlight the negative consequences of attributing them to aging. Age-related attributions of change are a major factor that worsens the subjective aging experience. Methodologically, our study emphasizes the necessity to separately assess changes and their attributions to age.

Predictors of engagement in young and older adults: The role of specific activity experience

Activity that places demands on cognitive resources has positive effects on cognitive health in old age. To further understand determinants of age-group differences in participation, we examined how negative aging stereotypes and responses associated with a cognitively challenging activity influenced future willingness to engage in that activity. Sixty-nine young (20-40 years) and 80 older (63-84 years) adults performed a letter-number sequencing (LNS) task at different levels of demand for 15 min, during which systolic blood pressure responses-a measure of effort mobilization-and subjective perceptions of task demands were assessed. Approximately half the participants were primed with a negative aging stereotype prior to this task. Following the LNS task, participants completed an effort-discounting task, with resulting subjective values indicating their willingness to perform the task at each level of demand. As expected, both subjective and objective indicators of cognitive demands as well as performance were associated with future willingness to engage in a difficult task, with these effects being significantly greater for older adults. In addition, although stereotype activation influenced older adults' engagement levels in the LNS task, it did not moderate willingness. Together, the results indicate that, relative to younger adults, older adults' decisions to engage in cognitively challenging activities are disproportionately affected by their subjective perceptions of demands. Interestingly, actual engagement with the task and associated success result in reduced perceptions of difficulty and greater willingness to engage. Thus, overcoming faulty and discouraging task perceptions may promote older adults' engagement in demanding but potentially beneficial activities. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Differential focus on probability and losses between young and older adults in risky decision-making

We examined young and older adults' use of descriptive information about risk (i.e., probability and expected value) in financial decision-making. In Experiment 1, participants chose between lotteries in pairs of bets that offered either two risky gains or one risky gain and one sure gain. Whereas they showed a strong and indiscriminate preference for high-probability gambles in risky-risky pairs, they selected sure options at high rates and risky options at low rates in risky-sure pairs, with slightly stronger effects in older relative to young adults due to age differences in ability. Experiment 2 involved the same task but in terms of losses. Participants, especially older adults, preferred low-probability gambles not accounted for by age differences in ability. Results suggest minimal consideration of expected value and a strong focus on probabilities in decision-making. They also suggest that cognitive ability and chronic goals differentially influence age effects depending on risk context.

Mosquito Community and West Nile Virus Risk on a National Guard Training Base in Oklahoma

Military bases are important areas for mosquito surveillance to maintain active duty combat readiness and protect training exercises. The aim of this study was to assist Camp Gruber National Guard training facility personnel to assess their mosquito community and West Nile virus (WNV) risk using biweekly sampling of 50 sites. Between May and October 2018, 10,259 adult female mosquitoes consisting of 6 genera and 26 species were collected over 662 trap-nights using 2 trap types. The most commonly collected genus was Culex (72.2% of total), followed by Psorophora (13.3%) and Aedes (10.2%). Of note, most of the medically important species were collected in the area containing troop living quarters, including 1 WNV-positive pool of Culex tarsalis. Two specimens of Aedes aegypti were collected around a vehicle storage area. While smaller in land mass size than many other active military bases in Oklahoma, the diversity of species at Camp Gruber was comparable to collections from 4 larger bases in Oklahoma. These data demonstrate the need for regular season-long mosquito monitoring of training bases to protect the health of active duty and reserve military personnel.

The Impact of Perceived Control and Future-Self Views on Preparing for the Old Age: Moderating Influences of Age, Culture, and Context

OBJECTIVES

Preparation for age-related changes has been shown to be beneficial to adjustment in later life. However, an understanding of the factors that influence such preparations is rather limited. This study examines whether perceived control and future-self views (FSV) influence preparations for old age, and if this influence varies across ages, domains of functioning, and cultures.

METHODS

Assessments of perceived control, FSV, and preparations for old age in each of four different life domains (social relationships, finances, work, and health) were obtained from 1,813 adults (ages 35-85) from Germany, Hong Kong, and the United States.

RESULTS

Future-self views partially mediated the relationship between perceived control and preparation for old age across both domains of functioning and cultures. With one exception, the association between perceived control and preparations increased with advancing age across contexts. Evidence for similar age-related moderation of the indirect effect of control through FSV was more limited.

DISCUSSION

These results suggest that perceived control that is not necessarily related to aging affect FSV, which in turn influence preparing for old age. Further, our results indicate that such relationships are context- and age-specific, highlighting the importance of considering the salience and diversity of life domains and cultures.

Perceived Benefits and Costs Contribute to Young and Older Adults' Selectivity in Social Relationships

This article explores the influence of perceived benefits and costs on willingness to engage in social interactions in 32 young adults aged 20 to 40 years and 38 older adults aged 65 to 85 years. Results showed (1) increases in perceived benefits and importance of each relationship but decreases in perceived costs associated with increases in network centrality, (2) reduced willingness in older adults to engage with social partners for whom perceived costs outweighed benefits, and (3) perceived costs and benefits subsumed the effects of the affective qualities of social interactions. Findings support an analysis of social behavior based on the selective engagement theory (Hess, 2014), with selection effects in willingness to engage in social interactions related to perceived benefits and costs.

ACTIVITY SELECTION AND ENGAGEMENT IN OLD AGE: MOTIVATIONAL AND GOAL-BASED INFLUENCES

Research from a variety of perspectives has emphasized the central role played by activity in supporting a variety of positive outcomes in later life. For example, participation in activities that place demands on personal resources has been shown to be beneficial in promoting brain, cognitive, and physical health. From another perspective, older adults may also engage in certain activities to promote specific outcomes (e.g., emotional) in service of psychological well-being. Such findings highlight the adaptive significance of activity selection and engagement processes. Using a variety of approaches, the presentations in this symposium focus specifically on goal-based and motivational factors that may facilitate or impede such processes. Moored and colleagues examine adaptive characteristics—including motivational ones—of individuals whose activity patterns are protective against dementia. Using longitudinal data from the Health and Retirement Study, Lothary and colleagues explore the degree to which intrinsic motivation to engage cognitive resources mediates the effect of personal resources (e.g., physical and emotional health) on participation in challenging everyday activities. Growney and colleagues present research demonstrating that subjective perceptions of difficulty affect decisions to engage in challenging activities, but that such perceptions may reflect biases associated with negative aging attitudes as opposed to actual effort expenditure. Finally, Lind and Isaacowitz examine selection associated with affective aspects of the activities, finding that both middle-aged and older adults exhibited similar biases toward positive activities in congruence with emotion-regulation goals, though age differences were observed in non-affective aspects of the activities. The discussion by Hertzog will highlight common themes.

THE IMPACT OF PERCEIVED IMPORTANCE AND RECENT CHANGES ON PREPARATION FOR OLD AGE

This study focused on identifying factors that motivate individuals to make provisions for their old age. We hypothesized that the motivation to make preparations would be associated with the importance attached to a specific domain of functioning along with the extent to which the individual experienced recent change within that domain. We examined how perceived changes in five different domains of functioning (social relationships, leisure, finances, work, health) during the last four years and the importance attached to each domain affected preparation for old age. Participants aged 35 to 85 (Germany: N=811; Hong Kong: N=482; US: N=515) were part of the Aging as Future Study. Across domains, perceptions of positive change and high importance were related to more engagement in preparations, as was being older. The strength of these effects as well as moderating influences varied across domains and cultures, reflecting potential differences in values and social/cultural supports.

CHANGES IN PERSONAL RESOURCES AND SUBJECTIVE AGE ACROSS 8 YEARS

Subjective age has been extensively researched as a predictor of physical and mental health outcomes in older adulthood. However, the mechanisms behind subjective age have not yet been established and reasons for longitudinal changes are unclear. Selective engagement theory (SET; Hess, 2014) proposes a connection between increases in objective and subjective cognitive costs and motivation to engage future resources. Costs are influenced by personal resources, mainly physical and mental health. These changes in costs may also influence subjective experiences of the aging process. For example, aging attitudes have been shown to partially mediate the associations between resources and both motivation and activity engagement (Hess et al., 2018). Using the Health and Retirement Study (HRS) data, changes in resources (physical and mental health) were hypothesized to predict changes in subjective age across 8 years. More specifically, reductions in resources were predicted to be associated with older subjective ages over time. This relationship was expected to be mediated through aging attitudes. Results indicate an association between changes in resources and changes in subjective age over time in the expected direction. Changes in resources were partially mediated by aging attitudes. However, resources function differently in predicting changes in subjective age based on the resource (physical and mental health) and chronological age of the participant. These findings provide more guidance as to the mechanisms behind subjective age and may offer theoretical guidance for future work looking at understanding changes in subjective age.

AGING STEREOTYPES MODERATE THE RELATIONSHIP BETWEEN COSTS AND DISCOUNTING

Aging is associated with normative declines in cognitive resources that increase the costs associated with mobilizing resources in cognitively demanding activities. Selective Engagement Theory (Hess, 2014) hypothesizes that changes in costs influence the motivation to engage in such activities in everyday life. We used an economic discounting task to examine the relationship between both objective estimates (systolic blood pressure responses) and subjective estimates (NASA Task Load Index) of cognitive costs in 78 older adults’ (ages 64-85) decisions to engage in more or less demanding activities. Perceptions of costs were meaningfully tied to actual costs (SBP), but further influenced by personal or primed attitudes about aging. Interestingly, decisions to engage in demanding activities—as reflected in discounting decisions—were less influenced by effort expenditure in the activity than by perceptions of difficulty. These results underscore the role that negative stereotypes play in undermining motivation to engage in potentially beneficial activities.

PHYSIOLOGY OF SUCCESSFUL AGING: IMPLICATIONS FOR HEALTH AND WELL-BEING

Research into peripheral physiology and its association with cognition, emotionality, and social/physical functioning has received considerable attention over the years. However, many of the underlying mechanisms are not well understood. In this symposium, we have compiled a set of four empirical projects that showcase current and future endeavors to address some of the long-standing questions about when, how, and why physiology shapes and is shaped by key psychosocial resources. Hawkley et al. make use of data from the NSHAP and HRS longitudinal studies to investigate whether social relationships such as number of friends predicts risk of diabetes among older adults. Wilson et al. use dyadic data from young and middle-aged couples to examine cardiometabolic similarity among spouses, and how such concordance is shaped by key relationship factors such as emotional closeness. Pauly et al. use data from two daily-life studies of older couples to investigate how physiological synchrony in cortisol is modulated by partner interactions, empathy, and empathic accuracy. Finally, Mantantzis et al. make use of multi-year longitudinal data from the Berlin Aging Study II to examine the role of glucose regulation capacity for trajectories of subjective well-being among older adults. Thomas Hess will discuss the importance of these papers, discuss strengths and weaknesses of the approaches chosen, and consider implications for future research.

LONGITUDINAL RELATIONSHIPS BETWEEN RESOURCES, MOTIVATION, AND ENGAGEMENT IN COGNITIVELY DEMANDING ACTIVITIES

Selective Engagement Theory (SET; Hess, 2014) suggests that decreases in personal resources and increases in the costs associated with activity engagement in old age negatively influence the motivation to engage in cognitively demanding activities. Here we explore these ideas longitudinally including a wide range of personal resources (cognitive ability, physical health, emotional health, and sensory functioning), with the expectation that emotional health might be a particularly important resource for older adults given its relative preservation with age. Young (n=125; age 19-42 at Time 1) and older adults (n=183; age 60-85 at Time 1) were tested from two to five times between years 2010 and 2016. Resources, motivation, and self-reported activity engagement (VLS Activity Questionnaire) were assessed at each time point. Using multilevel structural equation modeling, we found that changes in emotional health and sensory functioning predicted changes in motivation to engage in cognitively demanding activities. Additionally, increases in motivation predicted increases in engagement in cognitively demanding activities (e.g., technical, developmental), but decreases in less demanding activities (e.g., TV watching). Lastly, motivation partially mediated the relationships between emotional health and these activities, as well as between sensory functioning and engagement in technical activities. Results provide support for SET, demonstrating associations between changes in resources, motivation, and engagement in activities that are particularly demanding of cognitive resources, with the strength of these relationships being stronger in older than in young adults. Our results suggest that emotional resources may be particularly influential in determining the motivation for activity engagement in later life.

MOTIVATION AS A MECHANISM: THE LONGITUDINAL RELATIONSHIP BETWEEN PERSONAL RESOURCES AND ACTIVITY ENGAGEMENT

Past research has demonstrated an association between health and cognitive resources, intrinsic motivation, and activity participation in older adulthood, both cross-sectionally and from a daily perspective (e.g., Queen & Hess, 2018; Hess et al., 2018). This highlights the potential importance of motivation as a mediator of the impact of changing personal resources on engagement in cognitively beneficial activities. This study expanded on prior research by examining these relationships longitudinally in a large representative sample of adults over 50. Specifically, we used data from the Health and Retirement Survey (N = 5600) to create two 4-year longitudinal assessments, with multi-level structural equation modeling used to test the mediating role of motivation on everyday activity engagement. Consistent with expectations from Selective Engagement Theory (Hess, 2014), motivation served as a partial mediator of the impact of changing resources on engagement, with the effect being selective based on the cognitive demands of the activity.

Subjective Age Across the Life Span: A Differentiated, Longitudinal Approach

Objectives

How old people feel compared with their actual age, their so-called "subjective age" (SA), is a central indicator of individual aging experiences and predicts developmental outcomes, such as health and mortality, across the life span. We investigated the multidimensional structure of SA with respect to specific life domains, focusing on domain differences as well as age group differences and age-related changes. Furthermore, we inspected the relationship between SA and how people perceive their future as old persons (future self-views).

Method

We assessed these variables in a sample of 593 persons who completed a questionnaire at two time points 4 years apart (baseline-T1; follow up-T2) and who were aged 30-80 years at T1.

Results

SA differed across life domains and age groups, and the amount of change in SA across time was also contingent on life domain. Future self-views at T1 predicted subsequent changes in SA, with more negative self-views being associated with an increase in SA, especially for middle-aged participants for whom the transition to older age is imminent.

Discussion

Our results provide support for a multidimensional view of subjective aging experiences. They highlight the importance of a differentiated investigation of subjective aging constructs and their relations for understanding how these variables shape the aging process.

Affective Influences on Older Adults' Attention to Self-Relevant Negative Information

OBJECTIVES

Some research suggests that older adults have a tendency to be biased toward positive information, but may be more willing to attend to potentially beneficial negative information in certain situations. Following the mood-as-resource framework, one possibility is that older adults may be more willing to consider negative information when in a positive mood, with positive affect serving as a buffer to the adverse emotional consequences that may follow.

METHOD

Young (n = 62) and older (n = 65) adults completed a difficult cognitive task before completing either a positive or negative experience recall task, depending upon assigned condition. Afterwards, they rated their interest in viewing their strengths and weaknesses on the previously completed task, and then selected and viewed different types of feedback (i.e., strengths or weaknesses).

RESULTS

Older adults in the positive condition selected more weaknesses to view and spent more time viewing weaknesses than older adults in the negative condition. There were no differences across conditions in behavioral results for young adults. Ratings of interest in viewing different types of feedback did not correspond with actual feedback viewing behavior.

DISCUSSION

Results highlight the importance of considering older adults' pre-existing mood before addressing self-relevant information that may be negative but important.

The influence of mood versus relevant self-perceptions in older adults' interest in negative health-related information

Past research suggests that, although older adults may tend to prefer positive over negative information, they may be more willing to consider relevant negative information when in a positive affective state (Growney & Hess, 2017). However, the underlying mechanism involved in this phenomenon is unclear. In the present study, we aimed to identify this mechanism and disentangle mood and self-perceptions as potential personal resources. In Study 1, young and older adults completed either a positive or negative mood manipulation task, or a health manipulation task designed to accentuate positive or negative perceptions of one's health-related behaviors. Participants then selected three of six health-related articles to read based on their headlines, half of which were positively worded and half of which were negative, but offered self-corrective information. Participants in the positive health condition selected more negative health-related articles to read than those in the negative health condition, with the effect being specific to older adults. Simple manipulations of mood had no effect on article selection, suggesting that older adults used their positive self-perceptions as a resource for considering negative information. In addition, endorsement of information goals mediated the relationship between manipulated health behavior perceptions and article selections for both young and older adults. Results from Study 2 demonstrate that effects are specific to situations with high-informative versus low-informative content. Our findings suggest that older adults' willingness to focus on negative self-relevant information is bolstered by enhancing self-perceptions of self within the domain of interest. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

The role of cognitive costs, attitudes about aging, and intrinsic motivation in predicting engagement in everyday activities

Engagement in cognitively demanding everyday activities has been shown to benefit cognitive health in later life. We investigated the factors that influence engagement, with specific interest in determining the extent to which the costs of engaging cognitive resources are associated with intrinsic motivation and, ultimately, participation in everyday activities. Older adults (N = 153) aged from 65 to 81 years completed a challenging cognitive task, with the costs of cognitive engagement-operationalized as the effort required to maintain performance-assessed using systolic blood pressure responses (SBP-R). We also assessed participation in everyday activities using both 2-year retrospective reports and five daily reports over a 5-week period. Structural models revealed that lower levels of costs were associated with more positive attitudes about aging, which in turn were associated with higher levels of intrinsic motivation. Motivation was subsequently predictive of everyday activity engagement, with the effect being specific to those activities thought to place demands on cognitive resources. The measure of engagement had minimal impact on the nature of the observed effects, suggesting that the retrospective and weekly assessments were tapping into similar constructs. Taken together, the results are consistent with expectations derived from Selective Engagement Theory (Hess, 2014), which argues that engagement in demanding activities is related to the cost associated with such engagement, which in turn leads to selective participation through changes in motivation. (PsycINFO Database Record

Motivation moderates the impact of aging stereotypes on effort expenditure

The impact of aging stereotypes on task engagement was examined. Older adults (N = 144, ages 65 to 85) were exposed to primes designed to activate positive or negative stereotypes about aging, with half of the individuals in each stereotype group also assigned to a high-accountability condition to enhance motivation. Participants performed a memory-scan task comprising 2 levels of demands (memory sets of 4 or 7 items), with 2 blocks (5 min each) at each level. Systolic blood pressure recorded throughout the task was used to monitor engagement levels. High accountability was associated with greater engagement at the highest level of task demands. Negative stereotype activation also resulted in elevated engagement levels, but only during the initial trial blocks in the high-accountability condition. Lowest levels of engagement were associated with low accountability, with no difference between stereotype conditions. An analogous differential analysis on these same data using need for cognition and attitudes toward aging as measures of motivation and stereotypes revealed similar trends. Specifically, negative aging attitudes were associated with elevated levels of engagement only in individuals who were high in intrinsic motivation, with the effects greatest at the highest levels of task demands. The results provide a more nuanced perspective on the impact of negative aging stereotypes than suggested in previous research, with the impact on behavior moderated by situational and personal factors associated with motivation. Although potentially negative in the long run, elevated cardiovascular responses indicative of task engagement may represent an adaptive response to support performance. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Context Influences on the Subjective Experience of Aging: The Impact of Culture and Domains of Functioning

Background and Objectives

Attitudes about aging influence how people feel about their aging and affect psychological and health outcomes in later life. Given cross-cultural variability in such attitudes, the subjective experience of aging (e.g., subjective age [SA]) may also vary, potentially accounting for culture-specific patterns of aging-related outcomes. Our study explored cultural variation in SA and its determinants.

Research Design and Methods

American (N = 569), Chinese (N = 492), and German (N = 827) adults aged 30-95 years completed a questionnaire that included instruments measuring basic demographic information, SA, beliefs about thresholds of old age, control over life changes, and age dependency of changes in eight different life domains (i.e., family, work).

Results

Analyses revealed consistency across cultures in the domain-specificity of SA, but differences in the amount of shared variance across domains (e.g., Chinese adults exhibited greater homogeneity across domains than did Americans and Germans). Cultural differences were also observed in levels of SA in some domains, which were attenuated by domain-specific beliefs (e.g., control). Interestingly, beliefs about aging accounted for more cultural variation in SA than did sociodemographic factors (e.g., education).

Discussion and Implications

Our results demonstrate that subjective perceptions of aging and everyday functioning may be best understood from a perspective focused on context (i.e., culture, life domain). Given its important relation to functioning, examination of cross-cultural differences in the subjective experience of aging may highlight factors that determine variations in aging-related outcomes that then could serve as targets of culture-specific interventions promoting well-being in later life.

A world of difference? Domain-specific views on aging in China, the US, and Germany

Research on cross-national differences in views on aging has often focused on a comparison between Asian and Western countries. However, the results are mixed showing either more positive views in Asia, no difference at all, or even more positive views in Western countries. A potential moderator of country differences that might explain some of the heterogeneity is the fact that views on aging differ in their content and valence depending on life domains such as health versus family relations. Therefore, our aim was to systematically address domain-specific views on aging in a cross-national study, also considering that cross-national differences are age group-specific. We examined differences in views on aging between China, the United States, and Germany in eight life domains using samples with a broad age range. For most of the domains, cross-national differences indicated more negative views on aging in China compared with the Western countries and more positive views among the American compared with the German participants. Intriguingly, the differences between China and the United States or Germany were absent or even reversed in the domains friends, personality, and finances. Cross-national differences also varied by age group. Our results show that explanations of cross-national differences in views of aging probably do not apply uniformly across all life domains or age groups. They underline the importance of acknowledging the domain-specific nature of views on aging in cross-national research. (PsycINFO Database Record

Linkages between Resources, Motivation, and Engagement in Everyday Activities

The goal of this research was to examine the linkage between personal resources, intrinsic motivation, and participation in everyday activities. It was hypothesized the reductions in resources in later life will be associated with reduced motivation to engage in cognitively demanding activities, leading to reduction in participation in such activities in everyday life. To test this, we utilized data from the 2010 and 2012 waves of the Health and Retirement Survey. We used structural equation modeling to construct latent factors associated with health resources, cognitive resources, and intrinsic motivation. Cognitive and health resources were positively associated with intrinsic motivation, which in turn partially mediated the association between these resources and engagement in cognitively demanding everyday activities. Some variation in the fit of the model was observed across sexes, and the predictive power of the model was somewhat attenuated in the oldest old (ages 81+). The results support expectations derived from Selective Engagement Theory (Hess, 2014), which argues that increases in the costs associated with cognitive activity in later life negatively affects the motivation to engage in these potentially beneficial activities.

Aging and effort expenditure: The impact of subjective perceptions of task demands

Engagement in cognitively demanding activities has a positive impact on cognitive health in older adults. Previous work, however, has suggested that the costs associated with engagement increase in later life and influence motivation. We examined how subjective perceptions of these costs varied with age and influenced task engagement. The following questions were of specific interest: (a) Are there age differences in subjective perceptions of cognitive costs? (b) What is the impact of these perceptions on engagement? We tested 39 older (ages 65-84) and 37 younger (20-42) adults on a working memory task. Systolic blood pressure responsivity (SBP-R; reflective of effort) and subjective perceptions of task difficulty were assessed. We found that age was associated with an increase in the perceptions of cognitive costs, and that these subjective perceptions had a stronger impact on older adults' engagement than on that of younger adults. More important, this impact was specific to subjective perceptions of cognitive costs. The results provide further support for the hypothesis that increased costs associated with cognitive engagement influence older adults' willingness to engage cognitive resources, and that these costs in part reflect subjective perceptions that are independent of objective task demands. (PsycINFO Database Record

Context influences on the relationship between views of aging and subjective age: The moderating role of culture and domain of functioning

Subjective age has been shown to reliably predict a variety of psychological and physical health outcomes, yet our understanding of its determinants is still quite limited. Using data from the Aging as Future project, the authors examined the degree to which views of aging influence subjective age and how this influence varies across cultures and domains of everyday functioning. Using data from 1,877 adults aged from 30 to 95 years of age collected in China, Germany, and the United States, they assessed how general attitudes about aging and perceptions of oneself as an older adult influenced subjective age estimates in 8 different domains of functioning. More positive attitudes about aging were associated with older subjective ages, whereas more positive views of self in old age were associated with younger subjective age. It is hypothesized that these effects are reflective of social-comparison processes and self-protective mechanisms. These influences varied considerably over contexts, with views of aging having a greater impact in domains associated with stronger negative stereotypes of aging (e.g., health) compared to those with more positive ones (e.g., family). Culture also moderated the impact of aging views in terms of the strength of prediction, direction of effect, and age of greatest influence, presumably due to cultural differences in the salience and strength of aging-related belief systems across contexts. The results illustrate the contextual sensitivity of subjective age and highlight the role played by an individual's views of old age-both in general and regarding oneself-in determining their own experience of aging. (PsycINFO Database Record

Use of descriptive and experiential information in decision making by young and older adults

Age differences involving decision by description versus decision by experience were examined using the same general task structure to facilitate comparisons across decision types. Experiment 1 compared younger (19-43 years) and older (65-85 years) adults in four different experimental conditions involving a choice between a low-risk, low-return bet versus a high-risk, high-return bet. Experiment 2 compared young (18-27 years) to older (60-87 years) adults using similar experimental conditions, but with decisions involving a risky versus a certain option. Contrary to expectations, minimal differences were observed between ages in either study. Higher levels of ability and numeracy were associated with better performance and greater ability to benefit from experience, but the impact of these factors was not moderated by age. The results suggest that factors other than the simple distinction between decisions by description versus experience are necessary to characterize the nature of age effects in decision-making.

Age-Related Effects on Memory for Social Stimuli: The Role of Valence, Arousal, and Emotional Responses

Background/Study Context: Previous research (Hess et al., 2013, Psychology and Aging, 28, 853-863) suggested that age-based positivity effects in memory were attenuated with social stimuli. This research examined the degree to which this generalized across arousal levels associated with social images. Variations in approach and avoidance responses to individual images were also examined, along with age differences in their relationship to memory performance.

METHODS

In Experiment 1, young (22-43 years) and older (65-85 years) adults recalled positive and negative social scenes that were high or low in arousal. In Experiment 2, young (20-40 years) and older (65-83 years) adults viewed and recalled the same scenes under instructions designed to alter arousal, and approach and avoidance ratings for each image were recorded.

RESULTS

In Experiment 1, age differences in recall were confined to high-arousal, negative images, with young adults exhibiting superior memory relative to older adults. There was no evidence of an age-related positivity effect for low-arousal social scenes. This result was replicated in Experiment 2, but distancing instructions minimized the age difference in recall for high-arousal, negative images. Approach and avoidance ratings differentially predicted recall across age groups, with stronger associations in the young.

CONCLUSION

The results are consistent with emerging evidence demonstrating that valence-based biases associated with aging (e.g., positivity effect) are specific to the context and stimulus characteristics. Differences in prediction of recall responses from approach and avoidance ratings across age groups suggested that the observed effects in memory reflected differences in responses to the characteristics of stimuli.

Ageing-related influences on personal need for structure

The need for structure construct was examined in relation to adult age using the Personal Need for Structure scale (PNS; M.M. Thompson, M.E. Naccarato, & K. Parker, 1989). The results of a series of confirmatory factor analyses indicated that the two intercorrelated-factor structure of the PNS scale held up well across individuals aged 21 to 85, validating its use for the examination of ageing effects. Structural equation modelling analyses found that ageing was associated with lower levels of physical health and cognitive skill, which in turn were related to higher PNS scores. It was also found, however, that the impact of reductions in these resources on need for structure were counteracted by high levels of social activity and emotional health. The argument is made that ageing-related changes in personal resources impact everyday behaviour through changes in motivation, such as need for structure.

Adult Age Differences in Dual Information Processes: Implications for the Role of Affective and Deliberative Processes in Older Adults' Decision Making

Age differences in affective/experiential and deliberative processes have important theoretical implications for judgment and decision theory and important pragmatic implications for older-adult decision making. Age-related declines in the efficiency of deliberative processes predict poorer-quality decisions as we age. However, age-related adaptive processes, including motivated selectivity in the use of deliberative capacity, an increased focus on emotional goals, and greater experience, predict better or worse decisions for older adults depending on the situation. The aim of the current review is to examine adult age differences in affective and deliberative information processes in order to understand their potential impact on judgments and decisions. We review evidence for the role of these dual processes in judgment and decision making and then review two representative life-span perspectives (based on aging-related changes to cognitive or motivational processes) on the interplay between these processes. We present relevant predictions for older-adult decisions and make note of contradictions and gaps that currently exist in the literature. Finally, we review the sparse evidence about age differences in decision making and how theories and findings regarding dual processes could be applied to decision theory and decision aiding. In particular, we focus on prospect theory ( Kahneman & Tversky, 1979 ) and how prospect theory and theories regarding age differences in information processing can inform one another.

Aging-related gains and losses associated with word production in connected speech

Older adults have been observed to use more nonnormative, or atypical, words than younger adults in connected speech. We examined whether aging-related losses in word-finding abilities or gains in language expertise underlie these age differences. Sixty younger and 60 older adults described two neutral photographs. These descriptions were processed into word types, and textual analysis was used to identify interrupted speech (e.g., pauses), reflecting word-finding difficulty. Word types were assessed for normativeness, with nonnormative word types defined as those used by six (5%) or fewer participants to describe a particular picture. Accuracy and precision ratings were provided by another sample of 48 high-vocabulary younger and older adults. Older adults produced more interrupted and, as predicted, nonnormative words than younger adults. Older adults were more likely than younger adults to use nonnormative language via interrupted speech, suggesting a compensatory process. However, older adults' nonnormative words were more precise and trended for having higher accuracy, reflecting expertise. In tasks offering response flexibility, like connected speech, older adults may be able to offset instances of aging-related deficits by maximizing their expertise in other instances.

Influence of an n-3 long-chain polyunsaturated fatty acid-enriched diet on experimentally induced synovitis in horses

Dietary n-3 long-chain polyunsaturated fatty acid (LCPUFA) supplementation has previously been shown to modify joint-related inflammation in several species, although information in the horse is lacking. We investigated whether dietary supplementation with n-3 LCPUFA would modify experimentally induced synovitis in horses. Twelve, skeletally mature, non-pregnant mares were randomly assigned to either a control diet (CONT) or an n-3 long-chain fatty acid-enriched treatment diet (N3FA) containing 40 g/day of n-3 LCPUFA for 91 days. Blood samples taken on days 0, 30, 60 and 90, and synovial fluid collected on days 0 and 90 were processed for lipid composition. On day 91, joint inflammation was stimulated using an intra-articular (IA) injection of 100 ng of recombinant equine IL-1beta (reIL-1β). Synovial fluid samples taken at post-injection hours (PIH) 0, 4, 8 and 24 were analysed for prostaglandin E2 (PGE2 ), matrix metalloproteinase (MMP) activity and routine cytology. Synovium and articular cartilage samples collected at PIH 8 were analysed for gene expression of MMP 1 and MMP 13, interleukin-1beta (IL-1β), cyclooxygenase 2 (COX-2), tumour necrosis factor-alpha and the aggrecanases, a disintegrin and metalloprotease with thrombospondin motifs (ADAMTS)-4 and ADAMTS-5. A 90-day feeding period of n-3 LCPUFA increased serum phospholipid and synovial fluid lipid compositions of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) compared to CONT horses. The reIL-1β injection caused an inflammatory response; however, there was no effect of dietary treatment on synovial fluid PGE2 content and MMP activity. Synovial tissue collected from N3FA horses exhibited lower expression of ADAMTS-4 compared to CONT horses. Despite the presence of EPA and DHA in the synovial fluid of N3FA horses, dietary n-3 LCPUFA supplementation did not modify synovial fluid biomarkers compared to CONT horses; however, the lower ADAMTS-4 mRNA expression in N3FA synovium warrants further investigation of n-3 LCPUFA as a joint therapy.

Selective Engagement of Cognitive Resources: Motivational Influences on Older Adults' Cognitive Functioning

In this article, I present a framework for understanding the impact of aging-related declines in cognitive resources on functioning. I make the assumption that aging is associated with an increase in the costs of cognitive engagement, as reflected in both the effort required to achieve a specific level of task performance and the associated depletion or fatigue effects. I further argue that these costs result in older adults being increasingly selective in the engagement of cognitive resources in response to these declines. This selectivity is reflected in (a) a reduction in the intrinsic motivation to engage in cognitively demanding activities, which, in part, accounts for general reductions in engagement in such activities, and (b) greater sensitivity to the self-related implications of a given task. Both processes are adaptive if viewed in terms of resource conservation, but the former may also be maladaptive to the extent that it results in older adults restricting participation in cognitively demanding activities that could ultimately benefit cognitive health. I review supportive research and make the general case for the importance of considering motivational factors in understanding aging effects on cognitive functioning.

The Impact of Motivation and Task Difficulty on Resource Engagement: Differential Influences on Cardiovascular Responses of Young and Older Adults

This study examined whether the level of cognitive engagement older adults were willing to invest is disproportionately influenced by the personal implications of the task, as suggested by Selective Engagement Theory. We experimentally altered the personal implications of the task by manipulating participants accountability for their performance. Young (N = 50) and older (N = 50) adults performed a memory-search task of moderate difficulty but within the capabilities of both age groups. Both physiological (systolic blood pressure responsivity; SBP-R) and subjective (NASA-TLX) measures of cognitive effort were assessed across all difficulty levels. The results replicated findings from previous research that indicated older adults must exert more effort than younger adults to achieve the same level of objective performance. Most importantly, our results showed that older adults were especially sensitive to our accountability manipulation, with the difference in SBP-R between accountability conditions being greater for older than for young adults. Finally, we found that there was little relation between subjective measures of workload and our physiological measures of task engagement. Together, the results of this study provide continued support for the Selective Engagement Theory.

Older adults' preferences for colorectal cancer-screening test attributes and test choice

BACKGROUND

Understanding which attributes of colorectal cancer (CRC) screening tests drive older adults' test preferences and choices may help improve decision making surrounding CRC screening in older adults.

MATERIALS AND METHODS

To explore older adults' preferences for CRC-screening test attributes and screening tests, we conducted a survey with a discrete choice experiment (DCE), a directly selected preferred attribute question, and an unlabeled screening test-choice question in 116 cognitively intact adults aged 70-90 years, without a history of CRC or inflammatory bowel disease. Each participant answered ten discrete choice questions presenting two hypothetical tests comprised of four attributes: testing procedure, mortality reduction, test frequency, and complications. DCE responses were used to estimate each participant's most important attribute and to simulate their preferred test among three existing CRC-screening tests. For each individual, we compared the DCE-derived attributes to directly selected attributes, and the DCE-derived preferred test to a directly selected unlabeled test.

RESULTS

Older adults do not overwhelmingly value any one CRC-screening test attribute or prefer one type of CRC-screening test over other tests. However, small absolute DCE-derived preferences for the testing procedure attribute and for sigmoidoscopy-equivalent screening tests were revealed. Neither general health, functional, nor cognitive health status were associated with either an individual's most important attribute or most preferred test choice. The DCE-derived most important attribute was associated with each participant's directly selected unlabeled test choice.

CONCLUSION

Older adults' preferences for CRC-screening tests are not easily predicted. Medical providers should actively explore older adults' preferences for CRC screening, so that they can order a screening test that is concordant with their patients' values. Effective interventions are needed to support complex decision making surrounding CRC screening in older adults.

Assessment of Adult Age differences in Task Engagement: The Utility of Systolic Blood Pressure

The constructs of effort and engagement are central to many theoretical frameworks associated with the study of aging. Age differences in the effort associated with effortful cognitive operations have been hypothesized to account for aging effects in ability, and shifting goals and motivation have been hypothesized to be associated with differential levels of engagement across situations in younger and older adults. Unfortunately, the assessment of effort and engagement-constructs that we view as relatively synonymous-has suffered in the field of aging due to the lack of well-validated measures. We suggest that systolic blood pressure might provide an easy and valid means for examining age differences in mental effort, and present evidence in support of its usage. Existing findings clearly support its potential utility, but further empirical and theoretical work is necessary.

Aging and the impact of irrelevant information on social judgments

We conducted 2 experiments to specifically examine whether older adults are more susceptible to the negative impact of irrelevant evaluative information when making social judgments. Young (ages 20-44), middle-aged (ages 45-63), and older (ages 65-85) adults were presented with descriptions of people consisting of positive and negative traits that varied in relevance to specific occupations. They were asked to either form a general impression based on these traits or to evaluate the person's fitness for the specified occupation. In both studies, evaluative content of the descriptions (i.e., the number of positive minus number of negative traits) was a significant predictor of subjective evaluations. Of prime importance, adults of all ages were similarly able to selectively process relevant versus irrelevant information when occupational fitness evaluations required them to focus on a subset of information in the descriptions. Participants also adjusted the specific types of information used in making judgments, with the relative importance of agentic traits and negative information being greater when making occupation evaluations than when forming impressions. The results suggest that age differences in the processing evaluative information are minimal, and that the availability of well-established knowledge structures can help older adults effectively control the impact of irrelevant evaluative information when making social inferences.

Age differences in the underlying mechanisms of stereotype threat effects

OBJECTIVES

The goals of the present study were to (a) examine whether age differences exist in the mechanisms underlying stereotype threat effects on cognitive performance and (b) examine whether emotion regulation abilities may buffer against threat effects on performance.

METHOD

Older and younger adults were exposed to positive or negative age-relevant stereotypes, allowing us to examine the impact of threat on regulatory focus and working memory. Self-reported emotion regulation measures were completed prior to the session.

RESULTS

Older adults' performance under threat suggested a prevention-focused approach to the task, indexed by increased accuracy and reduced speed. The same pattern was observed in younger adults, but the effects were not as strong. Age differences emerged when examining the availability of working memory resources under threat, with young adults showing decrements, whereas older adults did not. Emotion regulation abilities moderated threat effects in young adults but not in older adults.

CONCLUSIONS

The results provide support for the notion that stereotype threat may lead to underperformance through somewhat different pathways in older and younger adults. Future research should further examine whether the underlying reason for this age difference is rooted in age-related improvements in emotion regulation.