By appealing to public concern over environmental issues, Green parties have emerged to gain secure positions in several party systems. However, in Canada, we know very little about why people support the Green Party. This research note draws upon the Canadian Election Study (CES) to explore the ways in which demographic factors, personality traits and individual environmentalism impact vote choice. Theorizing Green Party support as a form of pro-environmental behaviour, we build a model that tests the impact of demographic factors and personality traits as mediated through environmental attitudes. It finds that, while pro-environmental policy attitudes are the strongest predictor of Green Party support, several demographic factors and personality traits—specifically conscientiousness, openness to experience, agreeableness and extraversion—have an effect.

Snacking, namely, consuming food and beverages in-between main meals, especially snacks with a high fat, salt and/or sugar content, is a major contributor to excessive energy intake and long-term weight gain(1). There are many potential drivers of snacking behaviours, including physiological (e.g., hunger) as well as social, psychological, and emotional reasons(2). Individual differences, such as personality traits, have been linked to unhealthy snacking. Nevertheless, it is important to examine the potential explanatory pathways, such as motivations for snacking and habit strength, that may explain this relationship between personality and snacking. This cross-sectional study investigated the associations between personality traits, habit strength, motivations for snacking, and snacking behaviour, including choice and consumption. Participants were n = 230 Australian adults (female: n = 164; 71.3%) aged 18-77 years old (M = 34 years, SD = 13.4) who completed an online survey. The survey included assessments of personality traits (The Big Five Inventory 2), habit strength (the Self-Report Habit Index), motivations for snacking (The Eating Motivation Survey), momentary snack food choice (Snack Preference Task), and habitual snack food consumption (Snack Frequency Questionnaire). Overall, the most frequently selected motivations for snacking were ‘liking’, ‘convenience’, and ‘habit’. Correlation analyses were conducted to examine the relationship between motivations for snacking and snacking behaviour. We found that health motivation for snacking was negatively correlated with momentary choice (r = -.042, p <.01) and habitual consumption (r = -.033, p <.01) of unhealthy snack foods and beverages. Hierarchical multiple regression analyses were used to examine whether habit strength and the Big Five personality traits predicted both motivations for snacking and snacking behaviours after controlling for demographic variables. For health motivations for snacking, habit strength (beta = −0.15, p = .025), openness (beta = 0.50, p = .003, and conscientiousness (beta = 0.58, p = .001) were significant predictors. For momentary choice of unhealthy snacks, health motivation (beta = −4.35, p = .004), pleasure (beta = 3.53, p = .029), and visual appeal (beta = 5.29, p <.001) were significant predictors. For habitual consumption of unhealthy snacks, health motivation (beta = −5.39, p = .001), habit strength (beta = 2.89, p = .045) and neuroticism (beta = 5.16, p = .045) were significant predictors. These findings indicate that health motivation for snacking predicts both momentary snack preference and habitual snack food consumption. Moreover, personality traits may be linked with habitual unhealthy snacking behaviour via their association with specific motivations for snacking. Overall, these findings suggest that health promotion messages focusing on health motivation may be important for increasing healthier momentary and habitual snack choices to improve dietary intake and support weight management.

Heavy substance use (SU) and substance use disorders (SUD) have complex etiologies and often severe consequences. Certain personality traits have been associated with an increased risk for SU(D), but far less is known about personality changes related to SU(D). This review aims to synthesize the existing literature on this research question. A systematic literature search was conducted from November 2022 to February 2023 in PubMed, EbscoHost, and Web of Science. Peer-reviewed original papers on SU(D)-related personality changes were included. Of 55 included studies, 38 were observational population-based studies and 17 were intervention studies. Overall, personality and SU measures, samples, study designs, and statistical approaches were highly heterogenous. In observational studies, higher SU was most consistently related to increases in impulsivity-related traits and (less so) neuroticism, while interventions in the context of SU(D) were mostly associated with increases in conscientiousness and self-efficacy and lasting decreases in neuroticism. Findings for traits related to extraversion, openness, conscientiousness, and agreeableness were mixed and depended on SU measure and age. Studies on bidirectional associations suggest that personality and SU(D) both influence each other over time. Due to their strong association with SU(D), impulsivity-related traits may be important target points for interventions. Future work may investigate the mechanisms underlying personality changes related to SU(D), distinguishing substance-specific effects from general SU(D)-related processes like withdrawal, craving, and loss of control. Furthermore, more research is needed to examine whether SU(D)-related personality changes vary by developmental stage and clinical features (e.g. initial use, onset, remission, and relapse).

This study aimed to examine Dispositional, Adaptational, and Environmental (DAE) variables at the intersection of adaptive and maladaptive personality development as a conceptual replication of the DAE-model (Asendorpf & Motti-Stefanidi, European Journal of Personality, 32(3), 167–185, 2018). In a community sample of adolescents (N = 463; Mage = 13.6 years; 51% female) hypotheses-driven cross-lagged panel models were tested. Longitudinal associations between Dispositional (i.e., neuroticism, disagreeableness and unconscientiousness), Adaptational (i.e., social problems), and Environmental (i.e., perceived quality of the parent-child relationship) variables were investigated. The results partially support the DAE hypotheses. High levels of neuroticism, disagreeableness and social problems were found to predict the perceived quality of the parent–child relationship. In turn, the perceived quality of the parent–child relationship was found to predict levels of unconscientiousness and social problems. No mediation effects were found and, in contrast to DAE hypotheses, results did not indicate bidirectional influences between dispositions and adaptations. The results shed light on differential person–environment interactions that shape personality development and the importance of the perceived quality of the parent–child relationship. These findings provide insight in pathways of personality development, that may lead to personality pathology, and demonstrate the value of the DAE model as a structured guideline that provides testable hypotheses.

In this study, we sought to explain why dairy farmers give importance to various use and non-use values of animal welfare. In particular, we examined how the farmers could be segmented according to the relative importance they give to various use and non-use values in animal welfare and whether this segmentation could be explained by farmers’ personal values and personality traits. Based on a latent class analysis using best-worst scaling data on 123 Swedish dairy farmers, three segments of farmers were found: animalcentred, human-centred and business-orientated. These groups were related to measures of farmers’ personal values and personality traits in a point-biserial correlation and a hierarchal multinomial logistic regression analysis. The results suggest that the segmentation is related to personal values, but not to personality traits. This finding is important from a policy perspective, because the existence of different segments of farmers who are motivated by different values in animal welfare indicates a need to approach different farmers in different ways if policy is to succeed in improving animal welfare. It also indicates a possibility to influence the segments to improve animal welfare by measures that are sensitive to value dynamics of the farmers.

Recently economists have expressed increasing interest in studying the determinants of happiness. Their main task has been to identify economic and non-economic sources of well-being to define policies aimed at maximising happiness in nations. As yet, it has not been precisely explained why ‘happiness economics’ is actually a part of economic science. In this article, we show that happiness can be an economic concept providing a critical review of the literature on (a) economic applications of happiness data and (b) economic consequences of happiness. Happiness data have been used to analyse microeconomic phenomena and to value non-market goods. Happiness may act as a determinant of economic outcomes: it increases productivity, predicts one’s future income and affects labour market performance. A growing number of happiness studies indicate a role of personality traits in understanding the link between well-being and economic outcomes.

There is a lively debate about the effect of maximizing and satisficing tendencies on well-being. The question is, whether maximizing and satisficing have an adaptive or maladaptive effect on well-being. There are also issues regarding the conceptualization and measurement of maximizing and satisficing tendencies. In a sample of 514 subjects from the general population in Slovakia, a two-component model of maximizing was examined. Satisficing tendency was measured as a separate construct. The results show the usefulness of a two-component model (maximizing as a strategy and maximizing as a goal) in measuring maximizing tendency. Maximizing as a strategy (measured as alternative search) turned out to be maladaptive (positively related to depression and negatively related to happiness), whereas maximizing as a goal (measured as high standards) had no maladaptive effect (no relation with well-being). In addition, the two components were differently associated with personality factors, which strengthens the need to distinguish between them. However, the satisficing tendency measured separately from maximizing tendency was not related to anything which raises a question about the conceptualization and validity of this tendency. The results of the current study, therefore, indicate that the (mal)adaptive effect of these tendencies depends on their conceptualization as well as on how these tendencies are measured, and also on their different relationship with personality factors. However, results also point to the importance of considering the cultural context that may have an effect on the relationship between maximizing and well-being. Therefore, the results may vary due to different cultures.

In this person-centered study, we identified different profiles of resilience and vulnerability in emerging adulthood in response to previously experienced stressful life events. Additionally, we examined whether mothers’ and fathers’ parenting and participants’ personality traits in adolescence predicted these profiles. Data from the Flemish Study on Parenting, Personality, and Development (N = 346 families) were used. At T1 (2004; Mage = 11 years), T2 (2007), and T3 (2009), mothers and fathers reported on their parenting and their child’s personality. At T4 (2018; Mage = 25 years), emerging adults retrospectively self-reported the occurrence and impact of 22 stressful life events and rated current behavior problems and subjective well-being. Latent profile analysis revealed three profiles: Competent (71%; low stress, low behavior problems, high subjective well-being), Vulnerable (21%; average stress, high behavior problems, low subjective well-being), and Resilient (9%; high stress, average behavior problems, average subjective well-being). Emerging adults in the Resilient profile had experienced higher levels of maternal positive parenting and were less emotionally stable and conscientious than those in the Competent profile. Furthermore, emerging adults in the Vulnerable profile were less emotionally stable than their peers in the Competent profile. These findings reveal new insights into the heterogeneous patterns of emerging adults’ adaptation following stressful life events.

Jaak Panksepp’s Affective Neuroscience Theory is of high relevance not only for a better understanding of affective brain disorders but also in personality research. To make Panksepp’s theory more accessible for psychologists and psychiatrists, Davis, Panksepp, and Normansell (2003) developed the Affective Neuroscience Personality Scales (ANPS). These scales assess the manifestation of the primary emotional traits in humans based on a personality trait approach. Given their putative foundation in old subcortical areas in the brain, these primary emotional traits (assessed via the ANPS) could represent the evolutionarily oldest manifestations of personality (but this notion is still a matter of a debate). However, the ANPS inventories were based on using contextual items (e.g., about specific attitudes, behaviors, and feelings in specific situations). Recently, an adjective-based ANPS (ANPS-Adjective Ratings or ANPS-AR) was developed for a less context-dependent and more efficient assessment of Panksepp’s primary emotional systems in humans for use by both individuals and independent observer raters. The present work introduces the first German version of the ANPS-AR. Moreover, the current work investigates the original and ANPS-AR versions of the ANPS and their associations with the Big Five personality traits in two independent English- and German-speaking samples. The results show that the ANPS measures are very similarly correlated with the Big Five personality traits across different samples and scales. This work replicates the previous findings in an English version, and demonstrates the reliability and validity of the adjective-based German ANPS-AR.