Age differences in reaction time and attention in a national telephone sample of adults: education, sex, and task complexity matter

This study demonstrated effects of age, education, and sex on complex reaction time in a large national sample (N = 3,616) with a wide range in age (32-85) and education. Participants completed speeded auditory tasks (from the MIDUS [Midlife in the U.S.] Stop and Go Switch Task) by telephone. Complexity ranged from a simple repeated task to an alternating task that involved central executive processes including attention switching and inhibitory control. Increased complexity was associated with slower responses in older adults, those with lower education, and women, even after controlling for differences in health status. Higher levels of education were associated with greater central executive efficiency across adulthood: Overall, adults with college degrees performed on complex tasks like less educated individuals who were 10 years younger, up to age 75. These findings suggest that advanced education can moderate age differences on complex speeded tasks that require central executive processes, at least up to the point in old age at which biological declines predominate. The approach demonstrates the utility of combining laboratory paradigms with survey methods to enable the study of larger, more diverse and representative samples across the lifespan.     

Perceived Control Over Aging-Related Declines: Adaptive Beliefs and Behaviors

ABSTRACT— The belief that people are in control of desired outcomes, including those associated with aging, is a hallmark of American culture. Nevertheless, older adults are less likely than the young to believe there are things that can be done to control aging-related declines in areas such as memory. Within age groups, individual differences in control beliefs are related to cognitive performance, health, and well-being. Mechanisms linking perceived control and positive outcomes include adaptive behaviors such as strategy use and physical activity. There is some evidence that control beliefs can be modified in later life, as illustrated in an intervention for fear of falling. Further work is needed to examine the antecedents of perceived control in later life and the implications of control beliefs in other aging-related domains.     

Adulthood age differences in causal attributions for cognitive, physical, and social performance

Past research has revealed an unflattering pattern of attributions for the performance of the elderly. More specifically, poor performance by the elderly is attributed to internal and stable factors such as inability, whereas poor performance by the young is attributed to external and unstable factors such as bad luck. In the present study, 42 young (M age = 19.18 years) and 39 elderly (M age = 74.90 years) men and women made causal attributions for their own or for another person's hypothetical performance in the cognitive, physical, and social domains. When attributions for the same performance by young and elderly adults were compared, the results presented an unflattering view of the elderly, similar to the pattern in previous research. In contrast, when attributions for good versus poor performance by the elderly were compared, a more favorable picture emerged: The elderly were more likely to be given credit for their good performance than to be blamed for their poor performance. These findings give reason to question the pervasiveness of the negative view of the elderly that has been presented in previous studies.     

The Development of Coping Resources in Adulthood

ABSTRACT We examined three community samples to determine whether stressful episodes form a context for the development of coping resources in adulthood. The first study found that 81.9% of a sample of 845 older men reported drawing upon prior experiences in coping with a recent problem. Content analysis revealed that only 22.7% drew upon similar stressful episodes; the rest drew upon problems from work, the military, illnesses, deaths, etc. The second study replicated the earlier findings in 102 men and women, ages 24 to 84, who reported on a recent low point in semistructured interviews. In addition, 75% reported long-term effects, equally split between negative, positive, and mixed effects. Those individuals who perceived advantages from the low point were significantly more likely to report positive long-term effects. The third study replicated the findings from the first two studies in a sample of 941 men and women ages 23 to 62. Path analyses showed that coping strategies differentially predicted perceived positive or negative outcomes, which in turn predicted current mastery and depression levels. While the findings are cross-sectional and causality cannot be inferred, they are nonetheless supportive of the effects of stress and coping on personality.     

Going Beyond Frequency: A Qualitative Study to Explore New Dimensions for the Measurement of Family Meals

The majority of studies on family meals only assess frequency. We conducted a qualitative study of family meals with parent and child dyads to explore different dimensions of family meals, beyond frequency, that may be important protective factors for youth risk- and weight-related outcomes to examine in quantitative studies. Participants were 37 children aged 6–16 and their parent/guardian (74 participants in total). We conducted semi-structured and open-ended interviews with parents and children separately. Participants were recruited at pediatric/adolescent waiting rooms at an academic medical center in Boston, MA, as well as through flyers placed around Boston and online via CraigsList.org. The data were analyzed and compiled by first coding key phrases into themes and then including additional themes as they arose from the data. Themes related to three major topic areas emerged: feelings about family meals, meal rules and rituals, and communication during meals. Parents and children generally enjoyed family meals, and indicated that discussions of daily life, as well as more difficult conversations, took place during meals. Rules were set in place by parents but generally not reported as strict by children, and when allowed, the use of technology often hindered family communication during meals. Ultimately, this qualitative study provided an in-depth understanding of candidate dimensions that would be useful in quantitative studies to begin to disentangle the mechanisms associated with reductions in youth risk- and weight-related outcomes.     

Low perceived control as a risk factor for episodic memory: the mediational role of anxiety and task interference

Low perceived control is considered a risk factor for poor cognitive functioning, but the mechanisms are unclear. The goal of the present study was to analyze anxiety and task interference as sequential mediators of the association between control beliefs and episodic memory. Cognitive-specific control beliefs were assessed prior to the lab session. State anxiety was assessed in the lab, followed by a word list recall task. The frequency of intrusive thoughts during the memory task was reported by the participants as a measure of task interference after the completion of the cognitive testing. The results for 152 participants from the ages of 22 to 84 years supported the predicted three-path mediation model. Lower levels of control beliefs were associated with higher state anxiety, which in turn affected episodic memory performance by increasing the likelihood of task interference, with age, sex, and verbal abilities as covariates. The implications of the results for developing interventions to improve memory performance are considered.     

Control beliefs and susceptibility to the promises of memory improvement

Brain training is increasingly popular, and many believe in the efficacy of such programs without empirical evidence. We examined whether instructions promising memory improvement would influence subjective and objective cognition. Participants (n = 145; age: M = 50.64) were randomly assigned to a memory improvement or memory task condition. Participants completed demographic and perceived control over cognition measures, in addition to cognitive tasks and subjective cognition items for 7 days. Participants in the improvement condition reported significantly greater memory increases than those in the memory task condition. This effect was moderated by perceived control over cognition; participants in the improvement condition with high control beliefs were significantly more likely than those with low control beliefs or those in the task condition to report better memory. Individuals with higher control beliefs may be more susceptible to the claims of brain training programs, which is significant given that such programs are increasingly popular and commercially available.     

Examination of personality-ability relationships in the elderly: The role of the contextual (interface) assessment mode

Personality-ability relationships in old age were examined in 71 elderly persons. Two modes of assessment were used. One consisted of measuring intellectual abilities (17 tests) and personality (6 dimensions) by means of established instruments. Intellectual abilities covered were drawn from Horn and Cattell's model of psychometric intelligence. Personality dimensions included three measures of locus of control and one measure each for achievement motivation, anxiety, and morale. The second mode of assessment was aimed directly at the interface between cognitive abilities and personality. Six such interface (context-specific) scales, involving self-assessment and attributions dealing with intellectual functioning in the context of aging, were developed using the six traditional (transcontextual) personality scales as conceptual criteria. These newly developed interface scales exhibit satisfactory convergent and discriminant validity with their transcontextual parent scales of personality. The six parent personality measures and the six personality-ability interface scales were correlated, separately, with performance scores of psychometric intelligence. Relationships between the two domains (personality, ability) were substantial and of greater magnitude when personality was assessed in the context of the personality-ability interface. Because of the conjoint anchoring of the interface scales to both personality and ability, the findings provide a basis for beginning to clarify the nature of personality-ability relationships in old age. In addition, the results support the continuation of a measurement approach to the study of interdomain relationships that includes the use of direct assessments of the domain interface, in addition to traditionally distinct measures of different domains.