Jacqui Smith

New Frontiers in the Future of Aging: From Successful Aging of the Young Old to the Dilemmas of the Fourth Age

We review research findings on the oldest old that demonstrate that the fourth age entails a level of biocultural incompleteness, vulnerability and unpredictability that is distinct from the positive views of the third age (young old). The oldest old are at the limits of their functional capacity and science and social policy are constrained in terms of intervention. New theoretical and practical endeavors are required to deal with the challenges of increased numbers of the oldest old and the associated prevalence of frailty and forms of psychological mortality (e.g., loss of identity, psychological autonomy and a sense of control). Investigation of the fourth age is a new and challenging interdisciplinary research territory. Future study and discussion should focus on the critical question of whether the continuing major investments into extending the life span into the fourth age actually reduce the opportunities of an increasing number of people to live and die in dignity.

Is age-related stability of subjective well-being a paradox? Cross-sectional and longitudinal evidence from the Berlin Aging Study

Subjective well-being is thought to remain relatively stable into old age despite health-related losses. Age and functional health constraints were examined as predictors of individual differences and intraindividual change in subjective well-being, as indicated by positive and negative affect, using cross-sectional (N = 516) and longitudinal (N = 203) samples from the Berlin Aging Study (age range 70-103 years). In cross-sectional and longitudinal analyses, age and functional health constraints were negatively related to positive affect but unrelated to negative affect. Cross-sectionally, controlling for functional health constraints reversed the direction of the relationship between age and positive affect and produced a negative association between age and negative affect. Findings suggest two qualifications to the average stability of overall subjective well-being: Only some dimensions of subjective well-being remain stable, while others decline; age per se is not a cause of decline in subjective well-being but health constraints are.

Testing-the-Limits and the Study of Adult Age Differences in Cognitive Plasticity of a Mnemonic Skill

Investigated the range and limits of cognitive reserve capacity as a general approach to the under- standing of age differences in cognitive functioning. Testing-the-limits is proposed as a research strategy. Data are reported from 2 training studies involving old (65 to 83 years old) and young adults (19 to 29 years old). The training, designed to engineer an expertise in serial word recall, involved instruction and practice in the Method of Loci. Substantial plasticity was evident in pretest to posttest comparisons. Participants raised their serial word recall several times above that of pretest baseline. Age-differential limits in reserve capacity were evident in amount of training gain but not in responses to conditions of increased test difficulty (speeded stimulus presentation). Group differences were magnified by the training to such a degree that age distributions barely overlapped at posttests. Testing-the-limits offers promise in terms of understanding the extent and nature of cognitive plasticity. Developmental Psychology

Wisdom: Toward a psychology of wisdom and its ontogenesis

The conceptual focus of our approach is to conceive of wisdom as an expert knowledge system (expertise). Specifically, we view wisdom as a highly developed body of factual and procedural knowledge and judgment dealing with what we call the “fundamental pragmatics of life.” The fundamental pragmatics of life concern important but uncertain matters of life. Specifically, they involve knowledge and judgment about the course, variations, conditions, conduct, and meaning of life. Before we describe this approach in more detail, we present some of the historical background and theoretical rationales that have stimulated us to pursue research and theory on the topic of wisdom. Conceptual background Our interest in the psychological study of wisdom is motivated by three general lines of psychological inquiry. A first is our interest in the study of high levels of human performance, the kind of performance that can be labeled as exceptional and expertlike (Baltes & Kliegl, 1986; Ericsson, in press; Kliegl & Baltes, 1987; Smith & Baltes, in press; Smith, Dixon, & Baltes, 1989). The second line of inquiry is our search for positive aspects of the aging mind (Baltes & Baltes, in press; Baltes & Labouvie, 1973; Baltes & Schaie, 1976). The third line of interest is work on conceptions of intelligence that reflect a concern with the contextual and pragmatic features of everyday functioning (Cornelius & Caspi, 1987; Denney, 1984; Dixon & Baltes, 1986; Rogoff & Lave, 1984; Sternberg & Wagner, 1986). These three general lines of inquiry are described in more detail in later sections of this chapter.

Working memory plasticity in old age: practice gain, transfer, and maintenance.

Adult age differences in cognitive plasticity have been studied less often in working memory than in episodic memory. The authors investigated the effects of extensive working memory practice on performance improvement, transfer, and short-term maintenance of practice gains and transfer effects. Adults age 20-30 years and 70-80 years practiced a spatial working memory task with 2 levels of processing demands across 45 days for about 15 min per day. In both age groups and relative to age-matched, no-contact control groups, we found (a) substantial performance gains on the practiced task, (b) near transfer to a more demanding spatial n-back task and to numerical n-back tasks, and (c) 3-month maintenance of practice gains and near transfer effects, with decrements relative to postpractice performance among older but not younger adults. No evidence was found for far transfer to complex span tasks. The authors discuss neuronal mechanisms underlying adult age differences and similarities in patterns of plasticity and conclude that the potential of deliberate working memory practice as a tool for improving cognition in old age merits further exploration.

People Nominated as Wise: A Comparative Study of Wisdom-Related Knowledge

This study examined whether our conception of wisdom has a psychological bias, by focusing on a group of distinguished individuals nominated as being wise. The comparison groups included older clinical psychologists and highly educated old and young control groups. Wisdom-related knowledge was assessed by 2 tasks and evaluated with a set of 5 wisdom criteria. First, old wisdom nominees performed as well as clinical psychologists who in past research had shown the highest levels of performance. Second, wisdom nominees excelled in the task of existential life management and the criterion of value relativism. Third, up to age 80, older adults performed as well as younger adults. If there is a psychological bias to our conception of wisdom, this does not prevent nonpsychologists from being among the top performers.

Health and Well–Being in the Young Old and Oldest Old

Most individuals experience a decline in health status during old age. Paradoxically, there are proposals that older adults nevertheless maintain a positive sense of well–being, an indicator of successful aging. Data from the Berlin Aging Study (BASE: Baltes & Mayer, 1999), a locally representative sample of men and women aged 70 to 100+ (N= 516, M= 85 years), suggest that cumulative health–related chronic life strains set a constraint on the potential of oldest old individuals to experience the positive side of life. The young old in BASE reported significantly higher positive SWB than did the oldest old. Chronic illness and functional impairments (e.g., vision, hearing, mobility, strength) limit well–being especially in very old age.

Wisdom-related knowledge in a life review task: age differences and the role of professional specialization.

The study adopts life review as an avenue to access wisdom-related knowledge and examines the contribution of age and type of professional specialization to individual differences in wisdom-related knowledge. Women from 2 age groups/cohorts (young, M = 32 years; old, M = 71 years) and different professional specializations (human services vs. nonhuman services) were asked to think aloud about the life review of a fictitious woman who was either young or old. Verbal protocols were scored on 5 wisdom-related criteria: factual and procedural knowledge about life, life-span contextualism, relativism of values, recognition, and management of uncertainty. Three major findings emerged. First, human-services professionals outperformed the control group. Second, old adults performed as well as young adults. Third, for older adults wisdom-related performance was enhanced by the match between their own age and the age of the fictitious character.

The Fascination of Wisdom: Its Nature, Ontogeny, and Function

Wisdom has intrigued both scholars and laypersons since antiquity. On the one hand, its seemingly ethereal yet obvious qualities are timeless and universal. On the other hand, these same qualities are evolving and responsive to historical and cultural change. Novel societal and personal dilemmas emerge over time, and the ways and means to deal with recurring dilemmas are revisited and updated with prudence. Building on philosophical analyses of the role of theoretical and practical wisdom in good conduct and judgment about life matters, psychologists have begun to apply scientific methods to questions about the nature, function, and ontogeny of wisdom. We outline these research directions and focus on the Berlin Wisdom Paradigm, which was one of the first attempts to bring wisdom into the laboratory. Future research on wisdom would profit from interdisciplinary collaboration and creative application of new methods drawn from developmental, social, and cognitive psychology.

Self-Perceptions of Aging Predict Mortality and Change With Approaching Death: 16-Year Longitudinal Results From the Berlin Aging Study

Satisfaction with ones own aging and feeling young are indicators of positive well-being in late life. Using 16-year longitudinal data from participants of the Berlin Aging Study (P. B. Baltes & K. U. Mayer, 1999; N = 439; 70- to 100-year-olds), the authors examined whether and how these self-perceptions of aging change with age and how such changes relate to distance from death. Extending previous studies, they found that it is not only higher aging satisfaction and younger subjective age but also more favorable change patterns (e.g., less decline in aging satisfaction) that are uniquely associated with lower mortality hazards. These effects are robust after controls for objective measures such as age, gender, socioeconomic status, diagnosis of dementia, or number of illnesses. As individuals approach death, they become less satisfied with their aging and report feeling older. For aging satisfaction, mortality-related decline is much steeper than age-related decline, whereas change in subjective age is best characterized as an age-related process. The authors discuss how self-perceptions of aging are embedded in mechanisms underlying pathways of dying late in life.