Developmental Tasks as a Framework to Study Personality Development in Adulthood and Old Age

Research consistently shows that personality development is a lifelong phenomenon, with mean–level and rank–order changes occurring in all life phases. What happens during specific life phases that can explain these developmental patterns? In the present paper, we review literature linking personality development in different phases of adulthood to developmental tasks associated with these phases. Building on previous work, we describe several categories of developmental tasks that are present in all phases of adulthood. However, the specific tasks within these categories change across adulthood from establishing new social roles in early adulthood to maintaining them in middle adulthood and preventing losses in old age. This trajectory is reflected in mean–level changes in personality, which indicates development towards greater maturity (increases in social dominance, conscientiousness, and emotional stability) in early and middle adulthood, but less so at the end of life. Importantly, developmental tasks are not only associated with mean–level changes, but the way in which people deal with these tasks is also related to rank–order changes in personality. We provide an outlook for future research on how the influence of historical time on the normativeness of developmental tasks might be reflected in personality development. Copyright © 2014 European Association of Personality Psychology

What Drives Adult Personality Development? A Comparison of Theoretical Perspectives and Empirical Evidence

Increasing numbers of empirical studies provide compelling evidence that personality traits change across the entire lifespan. What initiates this continuing personality development and how does this development proceed? In this paper, we compare six theoretical perspectives that offer testable predictions about why personality develops the way it does and identify limitations and potentials of these perspectives by reviewing how they hold up against the empirical evidence. While all of these perspectives have received some empirical support, there is only little direct evidence for propositions put forward by the five–factor theory of personality and the theory of genotype → environment effects. In contrast, the neo–socioanalytic theory appears to offer a comprehensive framework that fits the empirical findings and allows the integration of other, more specialized, perspectives that focus on specific aspects of personality development like the role of time, systematic differences between categories of social roles or the active partake of the person himself or herself. We draw conclusions on the likely driving factors for adult personality development and identify avenues for future research. Copyright © 2014 European Association of Personality Psychology

Composition and arrangement of genes define the strength of IRES-driven translation in bicistronic mRNAs

In addition to the cap-dependent mechanism, eukaryotic initiation of translation can occur by a cap-independent mechanism which directs ribosomes to defined start codons enabled by internal ribosome entry site (IRES) elements. IRES elements from poliovirus and encephalomyocarditis virus are often used to construct bi- or oligocistronic expression vectors to co-express various genes from one mRNA. We found that while cap-dependent translation initiation from bicistronic mRNAs remains comparable to monocistronic expression, internal initiation mediated by these viral IRESs is often very inefficient. Expression of bicistronic expression vectors containing the hepatitis B virus core antigen (HBcAg) together with various cytokines in the second cistron of bicistronic mRNAs gave rise to very low levels of the tested cytokines. On the other hand, the HBcAg was well expressed when positioned in the second cistron. This suggests that the arrangement of cistrons in a bicistronic setting is crucial for IRES-dependent translation of the second cistron. A systematic examination of expression of reporter cistrons from bicistronic mRNAs with respect to position was carried out. Using the dual luciferase assay system we show that the composition of reading frames on a bicistronic mRNA and the order in which they are arranged define the strength of IRES-dependent translation. Although the cellular environment and the nature of the IRES element influence translation strength the dominant determinant is the nature and the arrangement of cistrons on the mRNA.

A Three–Part Framework for Self–Regulated Personality Development across Adulthood

Recently, researchers interested in personality development have begun to acknowledge the roles of motivation and self–regulation for why traits change across adulthood. We propose three preconditions under which individuals may change their own levels of a personality trait through self–directed efforts. Firstly, individuals need to desire changing their trait–related behaviours either as an end in itself or in order to achieve other goals. Secondly, they need to consider behavioural changes feasible and be able to implement the desired changes. Thirdly, behavioural changes need to become habitual in order to constitute a stable trait. After elaborating on these three conditions, we review evidence attesting to the importance of motivation and self–regulation for trait development. We conclude with a discussion of the mutual interdependence of traits and goals, as well as the limits of self–regulated personality change. From our framework, we derive why personality changes across adulthood tend to be small to medium only, namely because they may require that all three preconditions for self–regulated personality change are fulfilled. We provide reasons for why people might not view change as desirable, feasible or fail to maintain it over time. Finally, we propose ideas for potential study designs to research self–regulated personality change. Copyright © 2014 European Association of Personality Psychology

Translation of NRF mRNA is mediated by highly efficient internal ribosome entry

The ubiquitous transcription factor NRF (NF-kappaB repressing factor) is a constitutive transcriptional silencer of the multifunctional cytokine interferon-beta. NRF mRNA contains a long 5' untranslated region (5'UTR) predicted to fold into a strong secondary structure. The presence of stable hairpins is known to be incompatible with efficient translation by ribosomal scanning. Using dicistronic reporter gene constructs, we show that the NRF 5'UTR acts as an internal ribosome entry site (IRES) which directs ribosomes to the downstream start codon by a cap-independent mechanism. The relative activity of this IRES in various cell lines is at least 30-fold higher than that of picornaviral IRESs. The NRF 5'UTR also functions as a translational enhancer in the context of monocistronic mRNAs. Our results indicate that the NRF 5'UTR contains a highly potent IRES, which may allow for an alternate mode of translation under physiological conditions in which cap-dependent translation is inhibited.

Observation of the narrow state X(3872)-->J/psipi+pi- in pp collisions at sqaure root of s=1.96 TeV

We report the observation of a narrow state decaying into J/psipi+pi- and produced in 220 pb(-1) of p p-bar collisions at =1.96 Tesqaure root of sV in the CDF II experiment. We observe 730+/-90 decays. The mass is measured to be 3871.3+/-0.7(stat)+/-0.4(syst) MeV/c2, with an observed width consistent with the detector resolution. This is in agreement with the recent observation by the Belle Collaboration of the X(3872) meson.

Involvement of histidine residues in the activity of horse liver alcohol dehydrogenase

X-ray crystallographic studies indicate that His-51 in alcohol dehydrogenase may participate in a proton relay system during enzymatic catalysis [Eklund, H., Plapp, B. V., Samama, J.-P., & Brändén, C.-I. (1982) J. Biol. Chem. 257, 14349-14358], but there is no direct chemical evidence for this role. Diethyl pyrocarbonate (0.5-2 mM, pH 8, 25 degrees C) rapidly inactivated alcohol dehydrogenase, which was acetimidylated on all accessible lysine residues in order to prevent their modification. The reaction appeared to be specific for histidine residues, and the enzyme could be reactivated with 0.5 M hydroxylamine. The ethoxyformylated enzyme could still bind coenzymes, substrate analogues, and bipyridine, but with decreased affinity. The relationship between enzyme activity and the number of histidine residues modified showed that two histidine residues are modified during inactivation. NADH and isobutyramide significantly reduced the rate of inactivation, and the loss of activity then correlated with the modification of one to two histidine residues. The pH dependence of the inactivation showed the unusually high pK value of 9.6, which we attribute to the ionization of the water bound to zinc in the proton relay system. Although the histidine residue involved in the inactivation has not been identified, we conclude that one histidine residue (probably His-51) is essential for enzymatic activity.

Uncovering the Power of Personality to Shape Income

The notion of person-environment fit implies that personal and contextual factors interact in influencing important life outcomes. Using data from 8,458 employed individuals, we examined the combined effects of individuals’ actual personality traits and jobs’ expert-rated personality demands on earnings. Results from a response surface analysis indicated that the fit between individuals’ actual personality and the personality demands of their jobs is a predictor of income. Conclusions of this combined analysis were partly opposite to conclusions reached in previous studies using conventional regression methods. Individuals can earn additional income of more than their monthly salary per year if they hold a job that fits their personality. Thus, at least for some traits, economic success depends not only on having a “successful personality” but also, in part, on finding the best niche for one’s personality. We discuss the findings with regard to labor-market policies and individuals’ job-selection strategies.

Doing despite Disliking: Self–Regulatory Strategies in Everyday Aversive Activities

We investigated the self–regulatory strategies people spontaneously use in their everyday lives to regulate their persistence during aversive activities. In pilot studies (pooled N = 794), we identified self–regulatory strategies from self–reports and generated hypotheses about individual differences in trait self–control predicting their use. Next, deploying ambulatory assessment ( N = 264, 1940 reports of aversive/challenging activities), we investigated predictors of the strategies’ self–reported use and effectiveness (trait self–control and demand types). The popularity of strategies varied across demands. In addition, people higher in trait self–control were more likely to focus on the positive consequences of a given activity, set goals, and use emotion regulation. Focusing on positive consequences, focusing on negative consequences (of not performing the activity), thinking of the near finish, and emotion regulation increased perceived self–regulatory success across demands, whereas distracting oneself from the aversive activity decreased it. None of these strategies, however, accounted for the beneficial effects of trait self–control on perceived self–regulatory success. Hence, trait self–control and strategy use appear to represent separate routes to good self–regulation. By considering trait– and process–approaches these findings promote a more comprehensive understanding of self–regulatory success and failure during people's daily attempts to regulate their persistence. © 2018 European Association of Personality Psychology

Longitudinal Experience–Wide Association Studies—A Framework for Studying Personality Change

The importance of personality for predicting life outcomes in the domains of love, work, and health is well established, as is evidence that personality traits, while relatively stable, can change. However, little is known about the sources and processes that drive changes in personality traits and how such changes might impact important life outcomes. In this paper, we make the case that the research paradigms and methodological approaches commonly used in personality psychology need to be revised to advance our understanding of the sources and processes of personality change. We propose Longitudinal Experience–Wide Association Studies as a framework for studying personality change that can address the limitations of current methods, and we discuss strategies for overcoming some of the challenges associated with Longitudinal Experience–Wide Association Studies. © 2020 European Association of Personality Psychology

On Means and Ends

When pursuing a goal, one can focus more on the process or on the outcome of goal pursuit. We take a closer look at the hypothesis that when one pursues goals that are demanding in terms of the level of skill or self-regulation required to achieve them, focusing on the process is more adaptive and focusing on the outcome can even be detrimental to goal achievement. We summarize the evidence from the emerging literature on the adaptiveness of process focus and outcome focus for goal pursuit and attainment.

Changing eating behaviour vs. losing weight: the role of goal focus for weight loss in overweight women

A 6-week longitudinal study with N = 126 overweight women participating in a weight-loss programme investigated the hypothesis that focusing on the process (dietary behaviours) rather than on the outcome of dieting (weight loss) is associated with more successful goal pursuit and achievement. As expected, process focus was related positively to subjective daily success in dieting as well as to actual weight loss, and negatively to deviations from the diet. In contrast, outcome focus had a negative impact on successful dieting: focusing on weight loss was marginally negatively related to actual weight loss and was associated with more disinhibition after lapses. Confirming hypotheses, self-regulation failure (i.e. deviations from the diet, disinhibition) was negatively related to daily affective well-being. Contrary to hypotheses, however, goal focus was not directly associated with affective well-being but only indirectly through self-regulation. Focusing on the process rather than on the outcome of dieting, then, might help achieving difficult health-related goals and support self-regulation but does not contribute directly to affective well-being.

Proverb comprehension impairments in schizophrenia are related to executive dysfunction

The study aimed to investigate the pattern of proverb comprehension impairment and its relationship to proverb familiarity and executive dysfunction in schizophrenia. To assess the specificity of the impairment pattern to schizophrenia, alcohol-dependent patients were included as a psychiatric comparison group, as deficits of executive function and theory of mind as well as dysfunction of the prefrontal cortex, which have been related to proverb comprehension difficulties, are common in both disorders. Twenty-four schizophrenia patients, 20 alcohol-dependent patients and 34 healthy controls were administered a multiple-choice proverb interpretation task incorporating ratings of subjective familiarity and measures of executive function. Schizophrenia patients chose the correct abstract and meaningful interpretations less frequently and instead chose the incorrect concrete (both meaningless and meaningful) proverb interpretations more often than alcohol-dependent patients and healthy controls. Relative to healthy controls, schizophrenia patients also chose more abstract-meaningless response alternatives and were impaired in all executive domains. Impaired divided attention was most consistently associated with proverb interpretation deficits in both patient groups. Taken together, schizophrenia patients showed a specific pattern of proverb comprehension impairments related to executive dysfunction and symptoms. The comparison with the alcohol-dependent subgroup suggests that a more comprehensive and severe impairment of complex higher-order cognitive functions including executive behavioural control and non-literal language comprehension might be associated with frontal dysfunction in schizophrenia as compared to alcohol use disorder.

The Human Penguin Project: Climate, Social Integration, and Core Body Temperature

Social thermoregulation theory posits that modern human relationships are pleisiomorphically organized around body temperature regulation. In two studies (N = 1755) designed to test the principles from this theory, we used supervised machine learning to identify social and non-social factors that relate to core body temperature. This data-driven analysis found that complex social integration (CSI), defined as the number of high-contact roles one engages in, is a critical predictor of core body temperature. We further used a cross-validation approach to show that colder climates relate to higher levels of CSI, which in turn relates to higher CBT (when climates get colder). These results suggest that despite modern affordances for regulating body temperature, people still rely on social warmth to buffer their bodies against the cold.

Staying on and getting back on the wagon: age-related improvement in self-regulation during a low-calorie diet

In the present study, we investigated whether self-regulation improves across adulthood, especially regarding the mastery of setbacks and failure in an important health-related behavior, namely, staying on a low-calorie diet when overweight. Overweight women (N = 126; 19-77 years of age, M = 47.2) filled out weekly questionnaires on the outcomes of behavioral, emotional, and cognitive self-regulation during a dieting program; outcomes included deviations from the diet, weight loss, affect, and rumination. Confirming hypotheses, multilevel analyses revealed that-even after controlling for prior dieting attempts-age was associated with better self-reported self-regulation (i.e., fewer deviations from the diet, lower disinhibition and rumination after failure, and higher affective well-being) but not with more weight loss. Results suggest that self-regulation improves with age and shows positive effects on subjective indicators of successfully coping with setbacks but does not directly influence the target-outcome weight loss.

First measurements of inclusive W and Z cross sections from run II of the fermilab tevatron collider

We report the first measurements of inclusive W and Z cross sections times leptonic branching ratios for pp collisions at square root[s]=1.96 TeV, based on their decays to electrons and muons. The data correspond to an integrated luminosity of 72 pb(-1) recorded with the CDF detector at the Fermilab Tevatron. We test e-mu universality in W decays, and we measure the ratio of leptonic W and Z rates from which the leptonic branching fraction B(W-->lnu) can be extracted as well as an indirect value for the total width of the W and the Cabibbo-Kobayashi-Maskawa matrix element, |V(cs)|.

Measurement of prompt charm meson production cross sections in pp collisions at square root s = 1.96 TeV

We report on measurements of differential cross sections dsigma/dp(T) for prompt charm meson production in ppmacr; collisions at sqrt[s]=1.96 TeV using 5.8+/-0.3 pb(-1) of data from the CDF II detector at the Fermilab Tevatron. The data are collected with a new trigger that is sensitive to the long lifetime of hadrons containing heavy flavor. The charm meson cross sections are measured in the central rapidity region |y|</=1 in four fully reconstructed decay modes: D0-->K-pi(+), D(*+)-->D0pi(+), D+-->K-pi(+)pi(+), D(+)(s)-->phipi(+), and their charge conjugates. The measured cross sections are compared to theoretical calculations.