Some correlates of subjective life expectancy

In samples of 193 American and 209 Kuwaiti college students, the correlates of subjective life expectancy differed in the two countries, a Tao orientation and existential anxiety in the American students and death anxiety in the Kuwaiti students.     

Happiness, time consciousness, and subjective life expectancy.

84 men and 141 women enrolled at a university reported their sexes and ages, rated their happiness and their time consciousness, and estimated how many more years they expected to live. Men significantly overestimated their subjective life span compared to actuarial data. Women (but not men) who were happier tended to be younger, had greater subjective life expectancies, and felt that they had lived a smaller percentage of their total lives. Both older men and older women tended to be more time conscious.     

Stress and subjective life expectancy: Cross-sectional and longitudinal associations in early adolescence

Using data from a longitudinal study, the present study employed a latent class mover-stayer analytical strategy to examine both the cross-sectional and longitudinal (+33 months) relationship between membership of stress classes, and subjective life expectancy. Participants were from 21 High schools in Scotland and Northern Ireland. Data were collected in the first year of High school (mean age = 12.5 years), and at +33 months (fourth year, or school year 11). Sample 1 consisted of 1171 adolescents (40.82% females, 2.56% unreported) in Northern Ireland. Sample 2 consisted of 1059 adolescents (52.79% females, 1.32% unreported) in Scotland. Adolescents with the lowest levels of stress projected the highest subjective life expectancy scores. Longitudinal analyses were jumbled and not in keeping with cross-sectional results. More research may be needed on the trajectory of subjective life expectancy over time before it can be depended upon as a reliable outcome variable in adolescent development.     

The influence of subjective life expectancy on retirement transition and planning: A longitudinal study

This study examines the construct of subjective life expectancy (SLE), or the estimation of one's probable age of death. Drawing on the tenets of socioemotional selectivity theory (Carstensen, Isaacowitz, & Charles, 1999), we propose that SLE provides individuals with their own unique mental model of remaining time that is likely to affect their retirement planning and decision making. Longitudinal data from 1908 participants showed that SLE measured at Time 1 predicted mature-aged workers' intended retirement age and the extent that they were engaged in retirement preparation 12 months later at Time 2. Furthermore, a shorter SLE at Time 1 increased the odds of actual retirement by Time 2 after controlling for a set of known predictors of retirement. In contrast, a longer SLE at Time 1 increased the odds that a Time 1 retiree had returned to paid work by Time 2. The discussion highlights ways in which SLE can inform financial and vocational counselling for late career decision-makers.     

Observable and subjective factors associated with attempted suicide in later life

This paper presents the results of a case-control study of the relationship of socio-economic status (SES), relational system, service availability, perceived quality of life, and affective balance to attempted suicide. Subjects were white suicide attempters (N(7)34) and controls (N = 118) age 50 and above. Discriminant function analysis indicated that lower SES, less help available in a crisis, belonging to fewer organizations, and greater availability of services from a community mental health center were associated with classification as an attempter. Also, more negative emotions, fewer positive emotions, and dissatisfaction with oneself and one's finances predicted membership in the attempter group. The role of these factors as risk factors for and consequences of a suicide attempt is discussed.     

Objective and subjective assessments of parenting in hyperactive preschoolers

Objective: To evaluate whether the mother–child interactions of hyperactive preschool children and their typically developing peers differentially vary as a function of situational demands, and whether groupwise differences exist with respect to disciplinary practices and family lifestyles (e.g. level of parental investment, strategies for responding to child‐initiated provocation). Methods: Parenting practices were assessed via videotaped parent–child interactions and self‐report methods in mother–child dyads of 21 hyperactive preschoolers and 48 age‐matched control dyads. Results: Hyperactive preschoolers were significantly more non‐compliant during parent–child interactions. Mothers of hyperactive preschoolers exhibited more negative behaviour and less encouragement with heightened situational demands. Although few significant differences were reported regarding disciplinary practices, parents of hyperactive preschoolers reported greater levels of anger and child rearing difficulty, and perceived their children as more bothersome. Conclusions: Parents of hyperactive preschoolers may profit from interventions that are sensitive to the impact of situational changes on their behaviour and which address possible attributional biases regarding the source of parent–child discord. Copyright © 2006 John Wiley & Sons, Ltd.     

EEG correlates of cumulative expectancy and subjective estimates of alertness in a vigilance-type task

Occipital EEG was monitored during a slow presentation rate vigilance task. EEG samples were taken for each of 400 task events. The EEG is correlated with increases and decreases in “expectancy” built into the task. Post-trial subjective estimates of alertness parallel the EEG changes. Reaction time to “wanted signals” does not correlate with measures of pre-signal EEG.     

Objective and subjective complexity measures for a new population of patterns

A method of generating two-element matrix patterns having varying degrees of internal constraint is described. The method was used to generate a set of 9 × 9 matrix patterns of black and white squares in approximately equal proportion, ranging from very simple to very complex. Three sets of objective complexity measures were developed, the first two within,the framework of information theory and the third based on symmetry and grouping of identical elements. Multiple regression between the objective measures and subjective complexity scale values obtained in three separate experiments indicated that one of the information measures was uniformly superior in predicting subjective complexity.     

Objective and subjective socioeconomic status and susceptibility to the common cold.

OBJECTIVE: We ask whether subjective socioeconomic status (SES) predicts who develops a common cold when exposed to a cold virus. DESIGN: 193 healthy men and women ages 21-55 years were assessed for subjective (perceived rank) and objective SES, cognitive, affective and social dispositions, and health practices. Subsequently, they were exposed by nasal drops to a rhinovirus or influenza virus and monitored in quarantine for objective signs of illness and self-reported symptoms. MAIN OUTCOME MEASURES: Infection, signs and symptoms of the common cold, and clinical illness (infection and significant objective signs of illness). RESULTS: Increased subjective SES was associated with decreased risk for developing a cold for both viruses. This association was independent of objective SES and of cognitive, affective and social disposition that might provide alternative spurious (third factor) explanations for the association. Poorer sleep among those with lesser subjective SES may partly mediate the association between subjective SES and colds. CONCLUSIONS: Increased Subjective SES is associated with less susceptibility to upper respiratory infection, and this association is independent of objective SES, suggesting the importance of perceived relative rank to health.     

Objective vs subjective assessment of relaxation compliance among anxious individuals

Previous relaxation outcome research has lacked means to empirically determine how well Ss comply in home-practice assignments. This study reports on a relaxation assessment device (RAD) used by 21 adults who received 4 weeks of relaxation therapy for generalized anxiety. The RAD consists of a digital wristwatch, with a stopwatch function, surreptitiously placed within Ss' tape-players to monitor the amount of relaxation practice at home. Comparison of self-reported and RAD-determined practice found that Ss exaggerated their actual practice by an average overestimation of 126%. Only one-fourth of the Ss performed relaxation daily. Anxiety reductions were significantly correlated with RAD-determined but not with self-reported practice. Self-efficacy judgments significantly correlated with relaxation compliance only when percent overestimation in self-reports was controlled. The need for objective compliance measures in relaxation outcome studies was discussed.     

Objective and subjective dimensions of travel impedance as determinants of commuting stress

The stressful characteristics of commuting constraints are conceptualized in terms of both physical and perceptual conditions of travel impedance. This study develops and operationalizes the concept of subjective impedance, as a complement to our previously developed concept of impedance as a physically defined condition of commuting stress. The stress impacts of high-impedance commuting were examined in a study of 79 employees of two companies in the follow-up testing of a longitudinal study. Subjective impedance was overlapping but not isomorphic with physical impedance, and these two dimensions have differential relationships with health and well-being outcomes. The physical impedance construct received further confirmation in validational analyses and in predicted effects on various illness measures and job satisfaction. The newly constructed subjective impedance index was significantly related to evening home mood, residential satisfaction, and chest pain. Job change was also influenced primarily by commuting satisfaction. The results are discussed within an ecological framework emphasizing interdomain transfer effects and situational moderators of commuting stress.     

The effect of life expectancy on aggression and generativity: A life history perspective

Following a model that is inclusive of both dispositional and situational influences on life-history behaviors and attitudes, the effect of life expectancies on aggression and generativity was examined. Consistent with the hypotheses it was found that shorter life expectancies led to an increase in the desire to aggress and a decrease in the desire to engage in generative behaviors. The results are discussed in terms of how life history theory can be used to frame research on person-situation interactions.     

Objective and subjective measures indicate that orthographically similar words produce a blocking experience

Memory blocks are a common experience characterised by inappropriate retrieval of information that impairs memory search processes. In five studies, memory blocks were induced via exposure to orthographically similar words (Smith & Tindell, 1997) while participants reported their subjective experiences to determine whether the memory block effect (MBE) paradigm produces a feeling of being blocked. Experiments 1 and 3 provided evidence that the MBE is associated with more blocked experiences. In Experiments 2 and 4 increased blocking experiences correlated with blocked fragments when the experimental manipulation was disguised, which demonstrates that ratings were not contaminated by demand characteristics. Experiment 5 demonstrated that blocking happens even when there is no study list. Collectively, the subjective retrieval ratings and the objective response data provide converging evidence that exposure to orthographically similar words induces a memory block characterised by an ineffective memory search that perseverates on interfering information.     

Irrelevant sound effects amongst younger and older adults: Objective findings and subjective insights

Two experiments examine the effects of extraneous speech and nonspeech noise on a visual short-term memory task administered to younger and older adults. Experiment 1 confirms an earlier report that playing task-irrelevant speech is no more distracting for older adults than for younger adults (Rouleau & Belleville, 1996), indicating that “irrelevant sound effects” in short-term memory operate in a different manner to recalling targets in the presence of competing speech (Tun, O'Kane, & Wingfield, 2002). Experiment 2 extends this result to nonspeech noise and demonstrates that the result cannot be ascribed to hearing difficulties amongst the older age group, although the data also show that older adults rated the noise as less annoying and uncomfortable than younger adults. Implications for theories of the irrelevant sound effect, and for cognitive ageing, are discussed.     

Injury shortens life expectancy in ants and affects some risk-related decisions of workers

Animal Cognition - The Formica cinerea ants are known to be highly territorial and aggressively defend their nest and foraging areas against other ants. During the foraging, workers engage in...     

Event-related potentials, semantic processes, and expectancy factors in word recognition

Electrophysiological activity was recorded at 16 scalp locations during a word recognition task in order to investigate the effect of expectancy factors on ERPs. In each of 160 trials two stimuli (S1 and S2) were presented with a stimulus onset asynchrony (SOA) of 1500 msec. There were four experimental conditions. In the word-antonym (W-A) and the word-nonantonym (W-NA) conditions, both S1 and S2 were words. The subjects' task was to think of the antonym to S1 and respond as fast as possible after the presentation of S2 by pressing a "YES" button if S2 was an antonym to S1 (in the W-A trials), or a "NO" button if S2 was not an antonym to S1 (in the W-NA trials). In the nonword-word (NW-W) and nonword-nonword (NW-NW) conditions S1 was a nonword, while S2 was either a word (in NW-W trials) or a nonword (in NW-NW trials). If S1 was not a word, the subjects were instructed to wait for S2, and respond as fast as possible by pressing the "YES" button if it was a word an the "NO" button if it was not a word. EEG was sampled during a time epoch that started 100 msec before the onset of S1 and continued for another 2560 msec. The ERPs were analyzed separately for each experimental condition and for time epochs related to S1, to S2, and to the SOA. Expected antonyms were recognized significantly faster than any other words or nonwords. The RTs to words in the W-NA and NW-W condition, and to nonwords in the NW-NW condition did not differ significantly from each other. The ERP difference between the four conditions following S2 was interpreted in terms of a negative-going potential which appeared prior to the P300, during a time period which started 200 msec and ended 550 msec from stimulus onset. The negativity related to nonwords was significantly larger than the negativity related to words. The negativity related to the expected antonym was almost nonexistent. It is speculated that this negativity has the same origin as N400, and that it might be related to the process of lexical access.     

Objective risk, subjective risk, and colorectal cancer screening among a clinic sample

Among cancers, colorectal (CRC) is the third most incident and the second most lethal. Although screening for the disease has been shown to be effective in reducing morbidity and mortality, screening rates remain low. Risk of disease has been shown to increase screening uptake, but different types of risk may influence intent to screen, screening in a timely manner, or participating in screening at all. A cross-sectional design was used to select a diverse sample of CRC asymptomatic patients 50 or more years of age (N=104) visiting one of three Midwestern medical clinics. Results showed a positive relationship between receipt of CRC screening and planning to screen for CRC in the future. Objective risk factors (personal/family history and having a primary care physician) were associated with CRC screening uptake and screening within the time intervals recommended by professional screening guidelines, but subjective risk did not obtain significance for screening participation. Both objective (primary care physician) and subjective risk (long-term comparative risk, knowledge) were associated with future plans to screen. Findings suggest that CRC screening behaviors may be differentially influenced by type of risk.