Serotonin (5-HT) brain architecture appears to be implicated in normal personality traits as supported by genetic associations and studies using molecular brain imaging. However, so far, no studies have addressed potential contributions to variation in normal personality traits from in vivo serotonin 4 receptor (5-HT4R) brain availability, which has recently become possible to image with Positr...

This study draws on the cultural fit hypothesis to examine interactive effects of host country context and four (Multicultural Personality Questionnaire) expatriate personality traits – Cultural Empathy, Social Initiative, Emotional Stability, and Open Mindedness – on job satisfaction. The cultural fit hypothesis maintains that it is not only the expatriate personality traits per se, but the cu...

drug abuse has high co-morbidity with mental disorders, thus, controlling and treating it requires multimodal treatment intervention. this cross sectional study evaluates personality traits of 67 ïv heroin abusers in kashan prison. the utilized instruments included two parts: a demographic questionnaire and mmpï. the data obtained from the questionnaires were statistically analyzed by using fis...

The ability of personality traits to predict important life outcomes has traditionally been questioned because of the putative small effects of personality. In this article, we compare the predictive validity of personality traits with that of socioeconomic status (SES) and cognitive ability to test the relative contribution of personality traits to predictions of three critical outcomes: morta...

Personality is at the forefront of current behavioral ecological research. Most research concerns boldness, aggressiveness, activity, exploratory tendency, and sociability. However, many species may exhibit consistent variation in other traits, which the current research problematically misses. Exclusive adherence to the five traits ignores the possibility that other traits may be more conseque...

Stability represents a fundamental concept in developmental theory and research. In this article we give an overview of recent work on personality traits and their stability in adulthood. First, we define personality traits and stability. Second, we present empirical evidence supporting change and stability of personality traits across the adult years with respect to conceptually and statistica...

In the current climate of migration and globalization, personality characteristics of individuals from different countries have received a growing interest. Previous research has established reliable differences in personality traits across countries. The present study extends this research by examining 30 personality traits in 22 countries, based on an online survey in English with large natio...

Two issues pertinent to the Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM-5) proposal for personality pathology, the recovery of DSM-IV personality disorders (PDs) by proposed DSM-5 traits and the validity of the proposed DSM-5 hybrid model, which incorporates both personality pathology symptoms and maladaptive traits, were evaluated in a large undergraduate sample (N = 80...

The present study examined the genetic and environmental etiology underlying the Big Five personality traits and perceived stress, concurrently and longitudinally. In study 1, we used the twin sample from the National Longitudinal Study of Adolescent to Adult Health (Add Health IV) data. The results indicated that about 70% of the association between the Big Five personality traits and perceive...

Background Investigation of specific personality traits is still in focus of modern psychiatry for years. The target usually pursues identification of those personality traits, described as a predisposition of addiction. But the question of fowl and egg is still open: are these traits are predispositions or they are consequences of Heroin personality change. Based on “mathematical” admission th...