Evolution and Personality: What Should a Comprehensive Theory Address and How?

Personality is arguably the most integrative area of psychology; yet, it is an area about which evolutionary psychologists have had comparatively little to say. This is unfortunate because evolutionary theory holds great potential as a framework that can link together the disparate aspects that make up a person. We suggest that progress in evolutionary personality psychology will be helped by clarification of precisely what an evolutionary theory of personality would need to address. To this end, we first describe and assess some extant contributions by theorists attempting to understand personality from an evolutionary perspective. Next, we endorse a working definition of what personality entails and outline three types of personality differences – character traits, goals/motives, and selves/identities – that any comprehensive evolutionary theory of personality should address. Finally, we suggest an approach forward, one where evolved species‐typical motives orient people toward adaptive ends and result in the differentiation of individuals’ unique selves.     

Systèmes de personnalité au niveau de l'individu : vers une évaluation de l'architecture sociocognitive de la personnalité

This paper addresses conceptual strategies in the assessment of intra-individual personality architecture, including the assessment of those social-cognitive structures and dynamics that contribute to personality coherence. The paper also relates social-cognitive analyses of intra-individual personality architecture to trait-theoretic analyses of inter-individual differences in the population. An overarching theme is that these alternative research traditions should be understood as approaches to different scientific problems. Unlike, for example, the lexical Big Five tradition of personality research, social-cognitive theories are concerned fundamentally with mental structures and dynamics that causally contribute to personality functioning and coherence, and with understanding how these cognitive and affective systems develop and function in interaction with the social environment. As has been explained by Lamiell (2003) and others, inter-individual analyses cannot substitute for the study of intra-individual personality dynamics and dispositions.     

Prosociality and morality through the lens of personality psychology

Prosociality and morality are critical to the functioning and flourishing of society. There is, however, great variation in the degree to which individuals help or hinder one another, or adhere to ethical standards of “rightness.” One way to understand this variation is by drawing on theories and models within personality psychology, which may illuminate the basic individual characteristics that drive a wide range of other-regarding tendencies. In this review, we provide a snapshot of three research strands addressing these themes. The first concerns how personality traits map onto prosocial preferences for fairness and cooperation, as studied using classic social decision-making tasks called economic games. The second concerns the robust associations between personality traits and indicators of inter-group prejudice (e.g., authoritarian ideology). The third concerns the emerging concept of moral exceptionality, and the personality traits that may characterise individuals at the forefront of moral progress. These examples demonstrate the core role that personality psychology is playing in the study of prosocial and moral behaviour, as well as the critical mass emerging in the Australian context around these themes.     

Personality in multiple sclerosis (MS): impact on health,psychological well-being,coping, and overall quality of life

Personality has long been considered a factor that can account for differences in health, well-being, and overall quality of life (QOL). A ‘Distressed or Type D Personality’ has been studied in medical populations as a predictor of several outcomes. The purpose of the present investigation was to determine the presence of Type D Personality in multiple sclerosis (MS) and its role on disease symptoms, disease management, health-related behaviors, coping, psychological well-being, and overall QOL and functioning. Two hundred and thirty (230) individuals with MS completed a survey assessing personality, disease symptoms, disease management, coping, self-efficacy, locus of control (LOC), psychological well-being, and QOL. Thirty-seven (16%) individuals were found to be ‘Type D+.’ Such individuals reported greater fatigue, pain, depression, and anxiety and worse disease management and adherence. They also reported engaging in maladaptive means of coping. Compared to ‘Type D?’ they reported lower self-efficacy, LOC, QOL and greater perceived stress. Finally, ‘Type D+’ individuals were more likely to be considering leaving the workforce. Findings suggest that ‘Type D’ Personality is associated with various negative outcomes in MS. Consideration of the routine assessment of personality in MS seems warranted and may better inform interventions and ward off poor outcomes.     

The location of coping strategies within the Alternative Five Factor Model of personality

This study aimed to determine which personality dimension(s) as measured by the Zuckerman-Kuhlman Personality Questionnaire best explain a given coping strategy as measured by the COPE-48. Additionally, to clarify the location of these strategies in the broader framework of personality structure. Neuroticism-Anxiety contributed mostly to strategies focused on emotions, acceptance and denial, Activity to proactive and resolute strategies, and Sociability to obtaining emotional support and advice. Moreover, Impulsive Sensation-Seeking contributed to denial and substance use while Aggression-Hostility to focus on and venting of emotions, and inversely to restrain coping. Besides, we replicated the approach-avoidance axis and obtained an independent component grouping Religion and the inverse of Drugs, Humor and Impulsive Sensation-Seeking. Positioning coping strategies within the well-known, broader and multidimensional space of personality structure may help in a better understanding of its organization and a rethinking of its conceptualization including their underlying neurobiological basis, ultimate evolutionary nature and survival functions.     

Realistic affective forecasting: The role of personality

Affective forecasting often drives decision-making. Although affective forecasting research has often focused on identifying sources of error at the event level, the present investigation draws upon the “realistic paradigm” in seeking to identify factors that similarly influence predicted and actual emotions, explaining their concordance across individuals. We hypothesised that the personality traits neuroticism and extraversion would account for variation in both predicted and actual emotional reactions to a wide array of stimuli and events (football games, an election, Valentine's Day, birthdays, happy/sad film clips, and an intrusive interview). As hypothesised, individuals who were more introverted and neurotic anticipated, correctly, that they would experience relatively more unpleasant emotional reactions, and those who were more extraverted and less neurotic anticipated, correctly, that they would experience relatively more pleasant emotional reactions. Personality explained 30% of the concordance between predicted and actual emotional reactions. Findings suggest three purported personality processes implicated in affective forecasting, highlight the importance of individual-differences research in this domain, and call for more research on realistic affective forecasts.     

Personality Mediation of Genetic Effects on Attention-Deficit/Hyperactivity Disorder

Personality traits may be viable candidates for mediators of the relationship between genetic risk and ADHD. Participants were 578 children (331 boys; 320 children with ADHD) between the ages of six and 18. Parents and teachers completed a comprehensive, multi-stage diagnostic procedure to assess ADHD and comorbid disorders. Mother completed the California Q-Sort to assess child Big Five personality traits. Children provided buccal samples of DNA which were assayed for selected markers on DRD4, DAT1, and ADRA2A. An additive genetic risk composite was associated with ADHD symptoms and maladaptive personality traits; maladaptive personality traits were associated with ADHD symptoms. Low conscientiousness and high neuroticism partially mediated the relationship between genetic risk and ADHD symptoms. Mediation effects for conscientiousness were specific to inattentive symptoms; effects for neuroticism generalized to all disruptive behaviors. High neuroticism and low conscientiousness may be useful as early markers for children at risk for ADHD.     

Borderline personality disorder features and mate retention tactics

The purpose of the present study was to examine the association between features of borderline personality disorder (BPD) and mate retention tactics as a means of examining an evolutionary perspective on the association between BPD features and interpersonal problems and violence in romantic relationships. Two-hundred twenty-five college student participants completed the Personality Assessment Inventory for Borderlines (PAI-BOR; Morey, 1991) and the Mate Retention Inventory-Short Form (MRI-SF; Buss, Shackelford, & McKibbin, 2008) embedded within other measures. There was a strong association between BPD features and cost-inflicting mate retention tactics, including the specific tactics of vigilance, punishing mate's infidelity threat, intrasexual threats, and sexual inducements for both men and women. There were also gender-specific associations for additional tactics. These results contribute to our understanding of problems in romantic relationships among men and women with BPD features, including violence, and to our understanding of impulsive sexual behavior among individuals with BPD features by showing how these behaviors are used as extreme, maladaptive attempts at mate retention.     

Is short-term mating the maladaptive result of insecure attachment? A test of competing evolutionary perspectives

Different evolutionary perspectives offer competing views on short-term mating and attachment. Some theories argue that short-term mating results from insecure attachment, particularly the maladaptive attachment features of low self-esteem, interpersonal distrust, social avoidance, and emotional instability. Other theories posit that short-term mating is adaptive, having evolved as an ecologically contingent reproductive strategy. In this view, short-term mating has multiple origins-developmental, heritable, and situational-and may not be associated with the maladaptive traits of insecure attachment. Across several different cultures, short-term mating was moderately associated with insecure attachment, and insecure attachment was strongly related to maladaptive personality. However, short-term mating was largely independent of maladaptive personality. In some cases, especially among young men, short-term mating was associated with adaptive personality traits, especially higher self-esteem. It is argued that although insecure romantic attachment is somewhat associated with short-term mating, the causal links between early parent-child attachment and short-term mating are rather limited.     

The Dynamics of Personality Approach (DPA): 20 Tenets for Uncovering the Causal Mechanisms of Personality

Over the last few decades, most personality psychology research has been focused on assessing personality via scores on a few broad traits and investigating how these scores predict various behaviours and outcomes. This approach does not seek to explain the causal mechanisms underlying human personality and thus falls short of explaining the proximal sources of traits as well as the variation of individuals' behaviour over time and across situations. On the basis of the commonalities shared by influential process-oriented personality theories and models, we describe a general dynamics of personality approach (DPA). The DPA relies heavily on theoretical principles applicable to complex adaptive systems that self-regulate via feedback mechanisms, and it parses the sources of personality in terms of various psychological functions relevant in different phases of self-regulation. Thus, we consider personality to be rooted in individual differences in various cognitive, emotional–motivational, and volitional functions, as well as their causal interactions. In this article, we lay out 20 tenets for the DPA that may serve as a guideline for integrative research in personality science. © 2020 The Authors. European Journal of Personality published by John Wiley & Sons Ltd on behalf of European Association of Personality Psychology     

Personality integration: A synthesis of the parts and wholes of individuality theory

Individuality theory views the total psychological system or personality as an organized complexity which is partitioned into six major systems—sensory, motor, cognition, affect, value, and style. Each of these systems is, in turn, describable in terms of its subsystems and their components. Individuality is captured via the concept of multivariate personality type, which includes both profile and temporal characteristics. Organism-environment interactions are handled via the basic system circuit. This circuit involves an information input from the environment, a norm against which inputs are compared, and outputs which feed back into the external environment. Normative match refers to the degree of alignment between a specifiable norm (i.e., a psychological construction such as a goal or a purpose) and the environmental input. We refer to norm-input matches as assimilation. In the case of mismatches, accommodation is required via feedback mechanisms. Whereas normative matching is focused on external interactions between the organism and the environment, template matching is focused on internal processes of the psychological suprasystem. Thus, template matching refers to the degree of alignment between the profile and temporal aspects of a specifiable situation and personality type. Template matching involves specifying the details of central processing—the integrative role of the style and value systems, the transformation processing of the cognitive and affective systems, and the coding role of the sensory and motor systems. Suprasystem functioning involves both internal (i.e., template matching) and external (i.e., normative matching) processing simultaneously. Thus, molar psychological constructions, such as worldview and life-style, are the products or outcomes of the integrative processing of the style-cognitive and value-affective systems respectively. When suprasystem norms are functioning assimilatively we are describing periods of personality stability. When suprasystem norms are functioning accommodatively we are describing periods of personality change. The most encompassing indicator of personality integration at a given moment     

The relationship between personality organization and sexual life in a community sample of men

Contemporary object-relation theory of personality postulates that the level of severity of personality organization parallels the nature and extent of problems in the patient’s sexual life. The study aims at exploring the relationship between dimensions of Borderline Personality Organization (BPO) (as assessed according to Otto Kernberg’s model), sexual functioning, quality of sexual life and paraphilias in a community sample of men. One-hundred and thirty-six healthy men were asked to complete a set of questionnaires including the Inventory of Personality Organization (IPO), the International Index of Erectile Function, the Sexual Quality of Life Questionnaire, and a checklist to assess the prevalence of paraphilias. High scores on IPO subscales were significantly associated with low overall satisfaction in sexual functioning, low quality of sexual life, and the presence of paraphilias. Results expand previous findings on the relationship between features of BPO and core components of sexual life and support the need for an assessment of personality functioning in subjects reporting sexual problems.     

Personality and Dutch Emigrants' Reactions to Acculturation Strategies

This experimental questionnaire study examined individual differences in affective and normative reactions to acculturation strategies. A sample of 265 Dutch emigrants with a dual cultural background read scenarios describing the experiences of an emigrant. Eight (4 × 2) different scenario versions were developed, each referring to 1 of 4 acculturation strategies ( Berry, 1997 ) and representing either the Frisian or the Dutch native culture. Participants reacted most positively to the integration strategy. There were no differences in reactions to Frisian or Dutch original culture. With respect to the influence of personality, as measured with the Multicultural Personality Questionnaire ( van der Zee & van Oudenhoven, 2000 ), individuals high in flexibility responded more positively to the assimilation strategy than did individuals who scored low on this dimension.     

The longitudinal relationship of personality traits and disorders

Personality disorders are presumed to be stable because of underlying stable and maladaptive personality traits, but while previous research has demonstrated a link between personality traits and personality disorders cross-sectionally, personality disorders and personality traits have not been linked longitudinally. This study explores the extent to which relevant personality traits are stable in individuals diagnosed with 4 personality disorders (schizotypal, borderline, avoidant, and obsessive-compulsive personality disorders) and examines the assumption that these personality disorders are stable by virtue of stable personality traits. This assumption was tested via the estimation of a series of latent longitudinal models that evaluated whether changes in relevant personality traits lead to subsequent changes in personality disorders. In addition to offering large consistency estimates for personality traits and personality disorders, the results demonstrate significant cross-lagged relationships between trait change and later disorder change for 3 of the 4 personality disorders studied.     

心理虐待对儿童认知情绪调节策略的影响：人格特质的中介作用

采用儿童认知情绪调节问卷、儿童版艾森克人格问卷、儿童心理虐待量表对405名8～12岁儿童进行研究,考察人格特质在心理虐待对认知情绪调节策略关系中的中介作用。结果发现：(1)儿童心理虐待与不适应性认知情绪调节策略呈显著正相关;儿童神经质与不适应性认知情绪调节策略呈显著正相关儿童内外倾与适应性认知情绪调节策略呈显著正相关(2)儿童神经质在心理虐待与儿童不适应性认知情绪调节策略关系间起到完全中介作用（3）该中介模型具有性别和年龄的测量等值性。研究结果显示,儿童心理虐待可以通过神经质的中介作用影响不适应性认知情绪调节策略。     

人格差异性的进化心理学解释

进化心理学一直热衷于人格共同性的探讨,但一些研究者也认为应该关注人格差异性,因为共同性和差异性是人格必不可分的两面。对人格差异性的进化解释比较成熟的有三种：生活历史理论、基因多样性理论和代价信号理论。生活历史理论认为是不同的环境(稳定和不稳定),造成了不同的生活历史策略(K策略和R策略),人格特质差异是这些策略的进化产物。基因多样性理论主要从基因突变和平衡选择的角度来解释人格差异性。前者强调突变基因的不可避免性引发了个性差异的存在和发展;后者强调概率的调节作用,解释了不同人格特质之所以能够并行存在的原因。代价信号理论则认为是个体拥有的先天禀赋或者资源差距导致其传递信号的能力差异,从而选择了不同的行为策略。未来研究需要加大遗传学、神经科学等方面的力度,以及研究范式的创新。     

Ideology,Affect, Semiotics: Towards a Non-personal Theory of Personality

Personality theories, as Giordano (2014) argues, often treat Western versions of the self as having universal import. Eastern notions of self, however, offer a dramatically different basis for thinking about what personality might be. This paper, nonetheless, seeks to offer a general framework for theorizing about the epiphenomenon of personality in any culture, asserting that it is an effect of specific histories of ideological practices, semiotic networks and systems, and affect, which engage each other in dialogic and dialectical ways. The interactions of these factors, guided by ideology, regularize behavior and affective dynamics, largely in non-personal ways. Subjects are produced and reproduced from these complex interactions, which are situationally specific and simultaneously transpersonal. The subjects formed through these interactions are the basis for the folk psychology of personality, which treats the transient, varying effects of these interactions as more or less reified qualities that form a basis for the construction of selfhood, however conceived.