The evolution of personality disorders: A review of proposals

Personality disorders (PDs) are currently considered dysfunctions. However, personality differences are older than humanity and are ubiquitous in nature, from insects to higher primates. This suggests that a number of evolutionary mechanisms-other than dysfunctions-may be able to maintain stable behavioral variation in the gene pool. First of all, apparently maladaptive traits may actually improve fitness by enabling better survival or successful mating or reproduction, as exemplified by neuroticism, psychopathy, and narcissism. Furthermore, some PDs may harm important biological goals while facilitating others, or may be globally beneficial or detrimental depending on environmental circumstances or body condition. Alternatively, certain traits may form part of life history strategies: Coordinated suites of morphological, physiological and behavioral characters that optimize fitness through alternative routes and respond to selection as a whole. Still others may be vestigial adaptations that are no longer beneficial in present times. Finally, variation may be adaptative in and by itself, as it reduces competition for finite resources. These and other evolutionary mechanisms are reviewed and illustrated through human and non-human examples. Evolutionary theory is the best-substantiated explanatory framework across the life sciences, and may shed light on the question of why harmful personalities exist at all.

The impact of consumer positive personality on the purchase behavior of smart products

While the consumption of smart products is continuously increasing, it is essential to explore the trigger mechanism of consumer behavior in respect of smart product purchase. In this scenario, we aim to investigate the impact of consumers’ positive personality on the purchase behavior. We constructed a structural equation model based on the partial least square method and tested our hypotheses on the basis of data analysis. The data were collected by conducting a survey of 326 Chinese consumers. We found two affecting paths from consumers’ positive personality to smart product purchase. First, consumer knowledge promoted by positive personality raises purchase intention and, in turn, stimulates purchase behavior. Second, consumers’ positive personality improves perceived income, which determines actual purchase behavior. This study deepens our understanding of the trigger mechanism of smart product purchase behavior and enriches the consumer behavior theory.

Severity in the ICD-11 personality disorder model: Evaluation in a Spanish mixed sample

Severity is the main component of the ICD-11 personality disorder (PD) classification, but pertinent instruments have only recently been developed. We analyzed the psychometric properties of the ICD-11 Personality Disorder Severity scale (PDS-ICD-11) in a mixed sample of 726 community and clinical subjects. We also examined how the different components of the ICD-11 PD system -five trait domains, the borderline pattern specifier, and severity, all of them measured through self-reports- are interconnected and operate together. PDS-ICD-11 properties were adequate and similar to those of the original instrument. However, regressions and factor analyses showed a considerable overlap of severity with the five personality domains and the borderline specifier (72.6%). Bifactor modeling resulted in a general factor of PD (g-PD) that was not equivalent to severity nor improved criterion validity. The whole ICD-11 PD system, i.e., five personality domains, borderline, and severity, explained an average of 43.6% of variance of external measures of well-being, disability, and clinical problems, with severity contributing 4.8%. Suggestions to further improve the ICD-11 PD taxonomy include remodeling the present definition of severity to give more weight to the real-life consequences of traits.

Positive Self–regard and Claim to Leadership: Two Fundamental Forms of Self–evaluation

The present article examines the common factor structure of various self–evaluative personality constructs. Consistent with previous research, we found considerable redundancy between constructs. Two basic forms of self–evaluation could be distinguished: Positive Self–regard (PSR) reflects people's contentedness with themselves in comparison with their own standards. Constructs such as depression, self–esteem and neuroticism have very high loadings on this factor. In contrast, Claim to Leadership (CTL) reflects the subjective conviction that one is called to take charge and lead others. This conviction is often called ‘narcissism’. PSR mainly reflects an intra–personal kind of self–evaluation, whereas CTL reflects an inter–personal kind. Both forms of self–evaluation independently predict intellectual self–enhancement, but only one of them (PSR) also predicts self–reported mental health. Moreover, the two forms of self–evaluation are differentially associated with self–reported and peer–reported inter–personal traits (Dominance and Affiliation). Finally, the concepts of ‘Grandiosity’ and ‘Vulnerability’ from narcissism research may easily be reframed in terms of CTL and PSR. The two–dimensional framework may help overcome the conceptual confusion that exists around different forms of self–evaluation and streamline the field for future research. Copyright © 2013 European Association of Personality Psychology

Positive personality model: Which traits relate to complete mental health as conceived by the Dual Factor Model?

The aim of this research was to study the association between the Positive Personality Model (PPM) traits and the state of complete mental health as conceived by the Dual Factor Model (DFM). The sample was composed of 1502 Argentinean adults from the general population (age: M = 39.79, SD = 14.23; gender: 50.1% male, 49.9% female). A cluster analysis replicated the four-group classification of the DFM: complete mental health, symptomatic but content, troubled and vulnerable. The complete mental health cluster showed a significantly higher presence of sprightliness, serenity, moderation and integrity than the other groups. As for humanity, the complete mental health and the symptomatic but content groups had the highest scores. Sprightliness and serenity increased the odds of belonging to the complete mental health group while integrity and humanity decreased these odds. Implications for the Argentinean population are discussed.

Personality Dynamics, Motivation, and the Logic of Explanation

Dynamic personality approaches provide an important step forward for twenty-first century personality theories because they promise greater explanatory power compared with latent trait approaches. Nevertheless, whether dynamic personality theories satisfactorily address motivated action remains unclear. To address this, this article discusses the logic of explanation and problems with latent trait approaches in terms of circularity and reification. The article then assesses explanation within dynamic personality accounts and the putative role of motivation. While dynamic personality approaches avoid many of the problems associated with latent trait accounts, a satisfactory account of motivational systems and “human nature” is currently missing. Suggestions for addressing the dynamics of human nature in terms of criteria for motivational systems are discussed. Attachment theory is offered as one possible foundation for addressing the motivational dynamics of personality.

Substance and Evaluation in Personality Disorder Diagnoses

Like person judgments in everyday life, diagnoses of personality disorders (PDs) reflect at least two influences: first, the actual characteristics of the target person (substance), and second, the more positive or negative view that the perceiver has of the target person (evaluation). In this article, we present a systematic account of substance and evaluation in PD diagnoses, using a modified version of Brunswik's (1956) lens model. An empirical study shows that the items of the alternative DSM-5 model for personality disorders (AMPD) are in fact saturated with evaluation, that this evaluation is largely the same as "social desirability," and that the two mandatory components of the AMPD (criterion A and B) are not easily distinguishable from one another in that regard. We provide concrete recommendations as to how the conceptual clarity of PD diagnostics may be improved, by distinguishing people's personality dispositions from their (likely) long-term consequences.

The Positive Personality Model (PPM): Exploring a New Conceptual Framework for Personality Assessment

The aim of this paper is to explore a new framework for personality assessment that may function as sanity nosology of personality traits: the Positive Personality Model (PPM). The recent publication of DSM-5 created the opportunity to assess personality traits as dimensional constructs (American Psychiatric Association, 2013). In Section III, five maladaptive personality traits are proposed as the maladaptive versions of Five Factor Model (FFM) traits (Costa and McCrae, 1985). This approach draws on the existing idea of conceptualizing pathological and typical personality traits as part of a continuum. It places DSM-5′s maladaptive traits in a sickness pole and FFM’s traits in a “typical” pole. This spectrum, however, does not include a positive perspective that represents healthy behavior: a sanity nosology. The Positive Traits Inventory-5 (PTI-5; de la Iglesia and Castro Solano, 2018) is a measure designed to assess the positive reverse of the Personality Inventory for DSM-5-Adult (PID-5; Krueger et al., 2013). The 220 positive personality criteria were studied psychometrically using a sample of 1902 Argentinean adults from the general population (M_age = 39.10, SD = 13.81, Min = 18, and Max = 83; 50.1% females, 49.9% males). Exploratory and confirmatory factor analyses resulted in a five-factor solution. The dimensions were labeled Sprightliness, Integrity, Serenity, Moderation, and Humanity and subsumed under the denomination of PPM. Analyses of convergent validity provided some grounds for interpreting the five positive traits as positive versions of the pathological traits and the typical traits. When tested for its predictive capability on mental health, the PPM outperformed the variance explained by the FFM. It is concluded that the PPM may constitute a positive pole in the continuum of personality traits –possibly functioning as a sanity nosology– and that it is somewhat more related to optimal functioning than typical trait models. The PPM should be confirmed in other populations, its predictive capability ought to be tested with other relevant variables, and longitudinal studies should be done to analyze the stability of the traits over time.

Toward a Shared Understanding of Important Consequences of Personality

The assumption that personality makes a difference in people's everyday lives is probably the main reason why investigating personality seems worthwhile at all. Although the number of empirical studies addressing the everyday consequences of personality is considerable, an overarching conceptual framework is missing. We present such a framework, using a version of the SORKC model from cognitive-behavioral therapy. Our version of the model incorporates a full account of how personality may influence the ways in which people perceive and respond to situations, which may ultimately have important consequences for them and others. However, not everything that formally qualifies as a consequence of personality is equally relevant. In choosing criterion variables for their own research, researchers interested in personality consequences seem to have strongly relied on implicit assumptions regarding a “good life.” We review a sample of recent studies from the personality literature, using our own conceptualization of important personality consequences to assess the current state of the field, and deduce recommendations for future research.

An Integrative Conceptual Framework for Assessing Personality and Personality Pathology

As a contribution to the ongoing debate over the Diagnostic and Statistical Manual of Mental Disorders (DSM)-5, we present a framework for jointly conceptualizing personality and personality pathology. The key element is an explicit distinction between personality description (which is the realm of basic personality psychology) and personality evaluation (which is the realm of clinical personality psychology). Previous diagnostic systems did not acknowledge this crucial distinction. We created a sample diagnostic system, to illustrate how a practical application of our conceptual framework may look like. The system comprises two ingredients: First, a list of personality dispositions that may become problematic. These are described at a “basic level” of abstraction (i.e., the level at which patients and clinicians intuitively communicate about personality problems). Second, a list of negative consequences that are used to evaluate the extent to which a patient's personality pattern is “problematic.” A sample of therapists used the system for describing actual patients and found it to be better than the International Classification of Diseases (ICD)-10 and DSM–IV. Based on our conceptual deliberations, we analyze the DSM-5 proposal for personality and personality disorders. The proposal contains three different sets of “higher-order concepts” (personality traits, personality types, and levels of personality functioning). Only the first of these is sufficiently supported by empirical evidence, including analyses of our own set of personality dispositions.

Moral Undertow and the Passions: Two Challenges for Contemporary Emotion Regulation

The history and philosophy of affective terms and concepts contains important challenges for contemporary scientific accounts of emotion regulation. First, there is the problem of moral undertow. This arises because stipulating the ends of emotion regulation requires normative assumptions that ultimately derive from values and morals. Some historical precedents are considered to help explain and address this problem. Second, there is the problem of organization. This arises because multiple emotions are often organized and oriented in very particular ways over the life of the individual in a manner that cannot be adequately explained using the concept of “emotion.” A modern variant of the traditional concept of passion is invoked to help address this problem.

Differentiating adaptive and maladaptive perfectionism on the MMPI-2 and MIPS revised

Although conceptualizations of perfectionism have emphasized adaptive as well as maladaptive expressions of the construct, how these different dimensions or types of perfectionists might be reflected in comprehensive personality assessment instruments is unknown. An initial sample of 267 university students completed the Minnesota Multiphasic Personality Inventory-2 (MMPI-2; Butcher, Dahlstrom, Graham, Tellegen, & Kaemmer, 2001), Millon Index of Personality Styles Revised (MIPS-R; Millon, 2004), and Almost Perfect Scale-Revised (Slaney, Mobley, Trippi, Ashby, & Johnson, 1996). Analyses indicated that dimensions and types of perfectionism were associated, in expected directions, with select scores on the MMPI-2 and MIPS-R.