Personality and anxiety variation before and after menstruation

Thirty women subjects were studied on E, N, P, L, state anxiety, and trait anxiety, in order to investigate personality variation during the premenstrual and postmentrual stages. Atypically, the t-ratio of correlated means revealed significant decreases in E and L at the postmenstrual stage, and the more commonly reported shifts in neuroticism, anxiety, and sometimes psychoticism were not evident.     

Prosocial and antisocial aspects of personality in women: a replication study

Several studies seem to favour the existence of a continuum between prosociality and antisociality. The aim of the present study was to replicate the functions found in men in a sample of women. Physical-risk taking activities can be classified along a continuum ranging from prosociality to antisociality, the risky sports being in an intermediate point of that hypothetical dimension. The sample consisted of 43 antisocial risk takers incarcerated for having committed armed robbery, 52 risk-taker sportswomen, 74 prosocial risk takers, and 58 women not engaged in any risky activity. Subjects were administered the Sensation Seeking scale, the Eysenck Personality Questionnaire, the Impulsiveness scale of the Impulsiveness–Venturesomeness–Empathy Questionnaire, the Socialization scale of the California Psychological Inventory, and the Susceptibility to Punishment and Reward scales. Discriminant analysis identified in females the same three different profiles of physical risk-taking personality found in males: (1) the Impulsive Unsocialized Sensation Seeker; (2) the Venturesomeness; and (3) the Seeker of Experiences by a nonconforming life style. Moreover, the results seem to support the validity and generalizability across gender of the model being considered. The four personality variables that best discriminate among the risk-taking types are: Socialization, Thrill and Adventure Seeking, Experience Seeking, and Neuroticism.     

Eyeblink startle responses in spider phobies before and after treatment: A pilot study

Before and after treatment, acoustic probes eliciting eyeblink startles were presented to 41 female spider phobies during a behavioral approach test (BAT). During this test, subjects pulled a glass jar containing a live spider as nearby as they normally would tolerate. In order to obtain baseline startles, the subjects also carried out a BAT with a basket containing attractive food items. Startle responses were found to be relatively larger during the spider BAT than during the food BAT. This difference in relative magnitude decreased as a result of one-session treatment. The startle response appeared to be relatively independent of other outcome measures (i.e., Spider Questionnaire, BAT, and heart rate). Taken together, the results sustain findings previously reported by Lang and co-workers.     

A genetic factor explains most of the variation in the psychopathic personality

The psychopathic personality can be conceptualized as three interrelated dimensions, (a) an interpersonal style of glibness, grandiosity, and manipulation; (b) an affective disposition of callousness, lack of empathy, and unemotionality; and (c) a behavioral/lifestyle dimension of impulsivity, need for stimulation, and irresponsibility, underpinning a higher order construct, psychopathic personality. The authors used a self-report questionnaire (The Youth Psychopathic Traits Inventory) to study the importance of genetic and environmental influences on psychopathic personality traits in a sample of 1,090 monozygotic and dizygotic twin pairs, aged 16-17 years. Results showed a strong genetic influence behind the higher order "psychopathic personality" factor, underpinned by the three psychopathic personality dimensions. Over and above the effects to the higher order factor, significant unique genetic influences were also found in the callous/unemotional and in the impulsive/irresponsible dimension, but not in the grandiose/manipulative dimension. The authors propose that this latent psychopathic personality factor is a meaningful target for future etiological research.     

Conceptual system and personality: A multivariate study of system stage and personality correlates

Conceptual system as a cognitive-developmental variable in personality has been assumed to relate to different cognitions of self and others and of interpersonal relations at each developmental stage. The assumed relationship between conceptual system and some personality variables was studied in a group of students (N = 85). The “This-I-Believe” test (TIB) [Harvey, O. J. System structure, adaptability and creativity. In O. J. Harvey (Ed.), Experience, structure, and adaptability. New York: Springer, 1966.] for assessing the developmental stage of the conceptual system was administered together with personality scales for traits assumed important in socialization. A modified TIB scoring procedure was used. Highly significant differences in personality were obtained by a MANOVA, using conceptual system for classification. One dimension accounted for discrimination. Measures assumed to relate to sensitivity for and conformity to a social environment contributed most to the discrimination.     

A comparative study of personality in Ugandan and English subjects

Nine hundred and twenty-one males and 555 females in Uganda completed the Eysenck Personality Questionnaire. Indices of factor comparison indicated that the personality dimensions of P, E, N and L were virtually identical in Uganda and England. Some item changes were required to establish satisfactory reliabilities (alpha) for all factors. Sex differences revealed that males scored higher than females on E but lower on N, which is the usual finding. Strikingly, however, there was no sex difference for P and L, there being, in fact, a very slight tendency for females to score above males on P and below them on L. Cross-cultural comparisons, using only items both Ugandan and English scoring keys had in common, showed Ugandan Ss to score higher on L than their English counterparts, Ugandan males also scoring higher on E and N and Ugandan females scoring higher on P.     

The evolution of personality variation in humans and other animals

A comprehensive evolutionary framework for understanding the maintenance of heritable behavioral variation in humans is yet to be developed. Some evolutionary psychologists have argued that heritable variation will not be found in important, fitness-relevant characteristics because of the winnowing effect of natural selection. This article propounds the opposite view. Heritable variation is ubiquitous in all species, and there are a number of frameworks for understanding its persistence. The author argues that each of the Big Five dimensions of human personality can be seen as the result of a trade-off between different fitness costs and benefits. As there is no unconditionally optimal value of these trade-offs, it is to be expected that genetic diversity will be retained in the population.     

A study of temperament and personality in anorexia and bulimia nervosa

Although temperament and personality traits could influence the development and course of eating disorders, only a few studies examined the similarities and differences in personality between anorexia and bulimia nervosa. We compared 72 patients with DSM-IV eating disorders and 30 healthy controls. Dimensions of personality and personality disorders were evaluated with the Eysenck's EPQ, Cloninger's TCI, and the SCID-II questionnaires. The rates of impulsivity and clinical features were evaluated using specific rating scales. A comorbid personality disorder was found in 61.8% of patients with eating disorder. Avoidant personality disorder appeared was relatively common in anorexia nervosa restricting type; borderline personality disorder was most frequent in bulimia nervosa and the binge eating-purging type of anorexia nervosa. From a dimensional perspective, anorexic patients presented high scores in the dimension of persistence. Higher harm avoidance and impulsivity was found in bulimic patients. The overall eating disorders group presented high scores in neuroticism and low scores in self-directedness. Eating disorder patients have heterogeneous features of temperament and personality traits. Cluster C personality disorders seem more common in anorexia nervosa restricting type and impulsive personality features are associated with bulimic symptoms. Impulsivity seems to be a key aspect of temperament of bulimic patients, whereas anorexic symptoms are linked to persistent temperament traits.     

A taxometric study of borderline personality disorder

Taxometric methodology was used to determine whether borderline personality disorder (BPD) represents a taxon that is categorically distinct from normal personality or whether it falls on a dimensional continuum with normality. Two taxometric procedures were used with a sample of 1,389 outpatients assessed for BPD symptoms by semistructured interview. The procedures indicated that BPD does not represent a latent category. Implications are drawn for the conceptualization and etiology of BPD, and for the categorical versus dimensional status of personality disorders in general.     

A longitudinal study of personality change in young adulthood

The present research examined personality continuity and change in a sample of young men and women assessed at the beginning and end of college. Two-hundred seventy students completed measures of the Big Five personality traits when they first entered college and then 4 years later. Analyses indicate small- to medium-sized normative (i.e., mean-level) changes, large rank-order stability correlations, high levels of stability in personality structure, and moderate levels of ipsative (i.e. profile) stability. Overall, the findings are consistent with the perspective that personality traits exhibit considerable continuity over time, yet can change in systematic ways.