Zoonotic and non-zoonotic diseases in relation to human personality and societal values: Support for the parasite-stress model

The parasite-stress model of human sociality proposes that humans' ontogenetic experiences with infectious diseases as well as their evolutionary historical interactions with these diseases exert causal influences on human psychology and social behavior. This model has been supported by cross-national relationships between parasite prevalence and human personality traits, and between parasite prevalence and societal values. Importantly, the parasite-stress model emphasizes the causal role of non-zoonotic parasites (which have the capacity for human-to-human transmission), rather than zoonotic parasites (which do not), but previous studies failed to distinguish between these conceptually distinct cate- gories. The present investigation directly tested the differential predictive effects of zoonotic and non-zoonotic (both human-specific and multihost) parasite prevalence on personality traits and societal values. Supporting the parasite-stress model, cross-national differences in personality traits (unrestricted sexuality, extraversion, openness to experi- ences) and in societal values (individualism, collectivism, gender equality, democratiza- tion) are predicted specifically by non-zoonotic parasite prevalence.     

Cross-sectional studies of personality in a national sample: 2. Stability in neuroticism, extraversion, and openness

Data from the National Health and Nutrition Examination Survey (NHANES I) Epidemiologic Followup Study were used to examine age differences in neuroticism, extraversion, and openness to experience. Cross-sectional analyses of data from 10,063 respondents showed that older subjects were slightly lower in neuroticism, extraversion, and openness; that age trends were not curvilinear; and that there were no differences in personality scores that might be attributable to a mild-life crisis or transition. Comparison with data from 654 participants in the Augmented Baltimore Longitudinal Study of Aging (ABLSA) showed that the ABLSA sample was lower in extraversion and higher in openness than the national sample, although the differences were small in magnitude. Results were interpreted to mean that sampling and attrition in this longitudinal sample did not seriously bias results on these personality variables, and that cross-sectional findings from a large probability sample support the conclusion that personality is predominantly stable in adulthood.     

Personality Correlates with Frequency of Being Targeted for Unexpected Advances by Strangers1

Female Japanese students answered questionnaires about personality (Sociosexual Orientation Inventory and the Big Five) and the frequency of having been targeted for unexpected advances by strangers. Women who reported having been frequently targeted for being “picked up” with sexual intentions had unrestricted sociosexuality (r = .38, p < .0001; n = 145) and had personalities that suggested unrestricted sociosexuality (extraversion and openness). The frequency of being targeted for inappropriate touching was not associated consistently with personality traits. Women who reported having been frequently targeted for nonsexual advances were likely to rate themselves high in agreeableness. The ecological significance of the ability to choose a stranger with whom to interact, based on person perceptions through brief observation, is discussed.     

To fear or fly to the unknown: Tolerance for ambiguity and Big Five personality traits

The present study investigated whether ambiguity tolerance relates to personality traits that are theoretically grounded in fear (neuroticism) or attraction (openness to experience; extraversion) for the unknown. Our hypotheses were supported for self-report measures (and openness to experience predicted ambiguity tolerance controlling for intelligence), but behavioral choice measures of ambiguity tolerance demonstrated poor reliability and were unrelated to self-reported ambiguity tolerance and basic personality traits. An exploratory network analysis revealed that ambiguity tolerance was more strongly related to the intellectual curiosity (vs. aesthetic appreciation) facet of openness to experience, and the assertiveness (vs. energy or sociability) facet of extraversion. Our findings reinforce the fragmented literature in this area, and support predictions derived from psychological entropy theories of personality.     

Extraversion,Openness to Experience,and Global Career Intention: The Mediating Role of Cultural Intelligence

Drawing from social cognitive career theory, this study asserts that the personality traits of extraversion and openness to experience are positively and significantly related to global career intention (GCI). Moreover, drawing from self‐efficacy theory, this study asserts that cultural intelligence mediates the relationship between these personality traits and GCI. Results from a study in Australia of 158 undergraduate students demonstrated that extraversion and openness to experience are positively and significantly related to GCI. Results also showed that cultural intelligence partially mediates the relationship between (a) extraversion and GCI and (b) openness to experience and GCI.     

Personality and testosterone in men from a high-fertility population

Extraversion, a personality dimension associated with sociability, activity and dominance, predicts a man’s mating effort in various human populations. At a proximate level, individual differences in extraversion are likely to be mediated through testosterone, a strong hormonal correlate of men’s reproductive effort. However, the rare attempts to address this question have all been conducted in populations with low-fertility schedules, thus limiting the generality of the results. Using demographic, questionnaire and hormonal data from a high-fertility polygynous human population of Senegal, we first show that extraversion, a personality dimension predicting men’s mating behavior in this population, is associated with inter-individual differences in testosterone profiles, with men in the top quartile of extraversion distribution having 29% higher testosterone levels. We then show that personality profiles for neuroticism, openness and agreeableness are independent from testosterone levels. Since extraversion is the only personality dimension predicting men’s mating and reproductive success in this population, we suggest that variation in testosterone levels is primarily relevant for personality traits related to reproductive effort. The results have further implications to discuss possible evolutionary scenarios for the maintenance of variation in personality traits.     

Do voices carry valid information about a speaker’s personality?

Research on links between peoples’ personality traits and their voices has primarily focused on other peoples’ personality judgments about a target person based on a target person’s vocal characteristics, particularly voice pitch. However, it remains unclear whether individual differences in voices are linked to actual individual differences in personality traits, and thus whether vocal characteristics are indeed valid cues to personality. Here, we investigate how the personality traits of the Five Factor Model of Personality, sociosexuality, and dominance are related to measured fundamental frequency (voice pitch) and formant frequencies (formant position). For this purpose, we conducted a secondary data analysis of a large sample (2217 participants) from eleven different, independent datasets with a Bayesian approach. Results suggest substantial negative relationships between voice pitch and self-reported sociosexuality, dominance and extraversion in men and women. Thus, personality might at least partly be expressed in people’s voice pitch. Evidence for an association between formant frequencies and self-reported personality traits is not compelling but remains uncertain. We discuss potential underlying biological mechanisms of our effects and suggest a number of implications for future research.     

Childhood cognitive ability,education, and personality traits predict attainment in adult occupational prestige over 17 years

This study explored a longitudinal data set of nearly 5000 adults examining the effects of childhood cognitive ability (measured at age 11), parental social class (measured at birth), and personality on current occupational prestige (all measured at age 50), taking account the effects of education and the previous occupational levels (both measured at age 33). Participants' levels of occupational attainment significantly went up from age 33 to age 50. Correlational analysis showed childhood cognitive ability, parental social class, education and occupation, and personality traits (openness, conscientiousness, extraversion, emotional stability) were all significantly associated with current occupational prestige. The strongest correlates of current occupational levels were educational qualifications, followed by childhood cognitive ability, parental social class, and personality traits. Structural equation modelling showed that for the change of occupation over 17 years, the strongest predictor was education, followed by childhood intelligence. Personality traits (extraversion, conscientiousness, and openness) had modest but significant influence in the upgrading of occupational attainment over the period of time, and parental social status predicted occupational change mediated through education and initial occupational levels. Education and childhood intelligence are more powerful predictors of current occupational prestige than personality factors or family social background. The implications for policy making and equal opportunities for education are discussed.     

大五人格5个维度及10个面的发展水平——基于我国15～75岁横断样本调查

基于人格毕生发展理论及中国社会文化背景,调查了我国从青少年到老年3192名被试,探究了中国人大五人格5维度及10个面毕生发展水平。总体上,年龄与神经质、焦虑、抑郁、活跃、开放性、审美、创意显著负相关,与外倾性、宜人性、尽责性、自信、利他、顺从、条理和自律显著正相关。在60岁以下的人群中,年龄大的个体神经质更低,而在大于60岁的人群中,年龄大的个体神经质反而更高;在50岁以下的人群中,年龄大的个体外倾性水平相对较高,但50岁之后年龄大的个体外倾性相对较低;整体上,年龄大的个体开放性水平相对较低,而年龄大的个体宜人性水平反而更高;年龄大的个体尽责性水平也相对较高,但较之40到49岁群体而言,50岁以上群体的尽责性则相对较低。男性和女性不同年龄群体的大五人格具有一定差异性,特别是男性的尽责性高于女性,以及女性的神经质高于男性等性别差异。进一步分析了年龄与大五人格10个面的关系,描绘了不同年龄群体10个面的发展水平。     

Exploring the relationship between the Five-Factor Model of personality,social factors and self-reported delinquency

The ‘Big Five’ is one of the predominant models of personality structure but relatively little research has focussed on how the five factors might be related to self reported offending separately for males and females. This is problematic for understanding the relationship between personality and offending as females and males typically have different personality profiles and differ considerably in self-reported offending. In this research 720 adolescents (376 males and 344 females) completed a Big Five personality measure along with measures of self-reported offending, socioeconomic status and family structure. The results suggested that low agreeableness and low conscientiousness were independently related to the prevalence of self-reported offending for males and that low agreeableness was independently related to frequent male offending. Low conscientiousness was independently related to female offending, but so too were interactions between disrupted family and extraversion and disrupted family and openness. The interaction between extraversion and a disrupted family was also independently related to frequent female offending. Limitations and directions for future research are discussed.     

Comparison of EPI and psychoticism scales with measures of the five-factor model of personality

The need for a comprehensive model of personality traits acceptable to the entire community of personality researches has often been acknowledged. In this article, two such models are compared. Eysenck scales measuring neuroticism, extraversion, psychoticism and lie are correlated with self-report and peer-rating measures of the five-factor model—neuroticism, extraversion, openness to experience, agreeableness and conscientiousness—in a sample of adult men and women. Findings suggest that: (1) neuroticism and extraversion factors from the two systems match well; (2) sociability and impulsivity are distinguishable traits, but both fall within the broad domain of extraversion; (3) the EPI L scale measures aspects of several substantive traits rather than a response bias; (4) openness to experience is not well-represented in the Eysenck system; and (5) psychoticism corresponds most closely to the low poles of agreeableness and conscientiousness.     

Personality,counterfactual thinking,and negative emotional reactivity

ObjectivesPeople differ substantially in their emotional responses to negative stimuli. Separate lines of research have reported that individual differences and mental simulations contribute to emotional symptoms. Here, we explore the independent and interrelated contribution of personality traits and counterfactual thoughts to the intensity, duration, and overproduction of negative emotions.MethodA sample of mixed-level athletes (n = 243) completed questionnaire assessments in relation to their most recent unsuccessful competition.ResultsWe found that personality dimensions (extraversion, neuroticism, and openness) relate to the direction and magnitude of person counterfactuals. We also found that personality dimensions (neuroticism, extraversion, openness, and agreeableness) and the direction of counterfactual thoughts (upward or downward) relate to the intensity, duration, and/or overproduction of negative emotions. Lastly, we found that personality and counterfactual thoughts had independent rather than interrelated contributions to the experience of unpleasant emotions.ConclusionsThese findings carry important theoretical and practical implications with regard to identifying individuals susceptible to experiencing elevated emotional symptoms in response to short-term stressors.     

Temperament, personality, and developmental psychopathology as childhood antecedents of personality disorders

To contribute to the case for a dimensional conceptualization of psychopathology in general and maladaptive personality or personality disorders in particular, the present paper reviews the evidence for a dimensional representation of childhood temperament and personality. The review of temperament and variable-centered as well as person-centered approaches to childhood personality leads us to propose five broadband dimensions that capture individual differences in children and adolescents: extraversion, emotional stability, agreeableness, conscientiousness, and openness/intellect. Our analysis of the CBCL (Achenbach, 1991) and the DIPSI (currently under development at Ghent University), two dimensional models for childhood psychopathology, suggests two common broadband factors, internalizing and externalizing. The relations between the dimensional representation of childhood temperament/personality and psychopathology are documented with data from general population and clinical samples of children and adolescents. The article concludes with a proposal on how the higher-order dimensions emerging from studies of adaptive and maladaptive individual differences in childhood could be integrated in a common dimensional model.     

The role of personality in task and relationship conflict

Two studies explored the extent to which dispositions influence the attributions individuals make about the type of conflict they experience. Traits from the Five-Factor Model of personality (FFM) were linked to the tendency to experience task-and relationship-oriented conflict. Results provide some support for the idea that individuals have stable tendencies in the attributions they make about their conflict experiences across time, partners, and situations. Agreeableness and openness were related to reports of relationship conflict at the individual level. However, the strongest effects of personality on conflict attributions were found in the analysis of dyads. This analysis revealed that partner levels of extraversion and conscientiousness were associated with individuals' tendencies to report relationship conflict. Moreover, mean levels of extraversion and conscientiousness in a pair were associated with reports of relationship conflict. Differences between partners in extraversion were associated with more frequent conflict and a greater likelihood of reporting task-related conflict. Implications of these findings with respect to the role of personality in interpersonal relationships are discussed. Finally, these studies provide confirmatory evidence that conflict attributions have a meaningful impact on relationship satisfaction.     

Dark traits: Sometimes hot,and sometimes not? Female preferences for Dark Triad faces depend on sociosexuality and contraceptive use

Although the Dark Triad personality (i.e., Machiavellianism, narcissism, and psychopathy) has been researched widely, only few studies have investigated women's preferences for men who present high and low Dark Triad features. With an on-line two-alternative forced choice questionnaire we investigated the interaction between preferences of 1962 Finnish women for facial stimuli that differed in the intensity of the Dark Triad traits, accounting for mating context, contraceptive use, and sexual openness (sociosexuality). Among non-contraceptive-using women, unrestricted sociosexuality was positively correlated with preference for high narcissistic male faces, whereas in contraceptive-using women, sociosexuality correlated negatively with preference for high Machiavellian male faces. We suggest that i) facial cues to Dark Triad traits are detectable by women, but ii) their effect on the judgments of attractiveness may vary depending on sociosexuality and contraceptive use, and that iii) preference for narcissism follows similar variation trends as masculinity preference, depending on sociosexuality and the use of hormonal contraception.     

Individual differences,mood, and coping with Chronic pain in Rheumatoid Arthritis: a daily process analysis

This study examines individual differences in coping and associated health outcomes as they unfold across time. Twice daily for one week, 71 individuals with Rheumatoid Arthritis reported their pain, coping efforts, and negative mood via structured daily records. The five factor model of personality (neuroticism, extraversion, openness to experience, agreeableness, conscientiousness) and disease status were also assessed. Multi-level statistical models examining within and between person variability indicated significant temporal associations from coping to pain and bi-directional associations between mood and pain within days. Furthermore, findings suggest that coping use and coping effectiveness were moderated by personality. Implications for models of coping with chronic pain, as well as clinical applications, are discussed.     

Personality and American state differences in obesity prevalence

The study was conducted to determine whether state obesity-prevalence rates can be predicted by state differences in residents' levels on the Big Five personality variables (O. P. John & S. Srivastava, 1999). State obesity prevalence was the mean percentage of the state population from 2000 to 2005 with a body mass index > or = 30.0 as assessed by the Behavioral Risk Factor Surveillance System (Centers for Disease Control and Prevention, 2010), which currently interviews more than 350,000 adults annually. State neuroticism, extraversion, agreeableness, conscientiousness, and openness z scores, based on the responses of 619,397 residents to an Internet survey from 1999 to 2005, were taken from P. J. Rentfrow, S. D. Gosling, and J. Potter (2008). Alaska, Hawaii, and North Dakota had scores outside -3 and +3 standard deviations on at least 1 variable and were excluded as outliers. For the 47 remaining states, state obesity prevalence was significantly correlated with neuroticism (.35), agreeableness (.38), openness (-.44), socioeconomic status (-.74), white percentage (-.34), and urbanization (-.43). Multiple regression analysis showed that socioeconomic status could account for 54.0% of the criterion variance and that agreeableness, neuroticism, and openness together could account for another 17.1%.     

Be yourself,believe in yourself,and be happy: Self‐efficacy as a mediator between personality factors and subjective well‐being

Strobel, M., Tumasjan, A. & Spörrle, M. (2011). Be yourself, believe in yourself, and be happy: Self‐efficacy as a mediator between personality factors and subjective well‐being. Scandinavian Journal of Psychology 52, 43–48. Research has shown close connections between personality and subjective well‐being (SWB), suggesting that personality traits predispose individuals to experience different levels of SWB. Moreover, numerous studies have shown that self‐efficacy is related to both personality factors and SWB. Extending previous research, we show that general self‐efficacy functionally connects personality factors and two components of SWB (life satisfaction and subjective happiness). Our results demonstrate the mediating role of self‐efficacy in linking personality factors and SWB. Consistent with our expectations, the influence of neuroticism, extraversion, openness, and conscientiousness on life satisfaction was mediated by self‐efficacy. Furthermore, self‐efficacy mediated the influence of openness and conscientiousness, but not that of neuroticism and extraversion, on subjective happiness. Results highlight the importance of cognitive beliefs in functionally linking personality traits and SWB.     

A behavior genetic analysis of personality and loneliness

The phenotypic, genetic, and environmental correlations between the Big Five factors of personality and loneliness were examined. At the phenotypic level, loneliness had a strong significant positive correlation with neuroticism, significant moderate negative correlations with agreeableness, conscientiousness, and extraversion, and a small positive correlation with openness. Both loneliness and personality were found to be heritable. Bivariate genetic analyses resulted in significant positive genetic correlations between loneliness and neuroticism and openness, and significant negative genetic correlations with agreeableness, conscientiousness, and extraversion. Significant unique environment correlations were found between loneliness and four of the five personality factors (all negative except neuroticism) and a non-significant correlation with openness. The results suggest common genetic and unique environmental factors play a role in personality and loneliness.     

Personality and American State Differences in Obesity Prevalence

ABSTRACT

The study was conducted to determine whether state obesity-prevalence rates can be predicted by state differences in residents’ levels on the Big Five personality variables (O. P. John &; S. Srivastava, 1999). State obesity prevalence was the mean percentage of the state population from 2000 to 2005 with a body mass index ≥ 30.0 as assessed by the Behavioral Risk Factor Surveillance System (Centers for Disease Control and Prevention, 2010), which currently interviews more than 350,000 adults annually. State neuroticism, extraversion, agreeableness, conscientiousness, and openness z scores, based on the responses of 619,397 residents to an Internet survey from 1999 to 2005, were taken from P. J. Rentfrow, S. D. Gosling, and J. Potter (2008). Alaska, Hawaii, and North Dakota had scores outside ?3 and +3 standard deviations on at least 1 variable and were excluded as outliers. For the 47 remaining states, state obesity prevalence was significantly correlated with neuroticism (.35), agreeableness (.38), openness (?.44), socioeconomic status (?.74), white percentage (?.34), and urbanization (?.43). Multiple regression analysis showed that socioeconomic status could account for 54.0% of the criterion variance and that agreeableness, neuroticism, and openness together could account for another 17.1%.