BACKGROUND Previous studies of paranoia have assessed only limited numbers of paranoid thoughts, and have not considered the experience from a multidimensional perspective or examined the relationship between different suspicious thoughts. AIMS To assess a wide range of paranoid thoughts multidimensionally and examine their distribution, to identify the associated coping strategies and to exa...

This article describes the most frequent personality disorders related to pathological gambling. Participants included 50 pathological gamblers assessed with the IPDE, and 50 normative subjects from the general population with the same demographic features (age, sex, and socioeconomic level). Thirty-two percent of the clinical sample (vs. the 8% of the normative sample) showed at least one pers...

BACKGROUND The borderline personality disorder (BPD) population is notably heterogeneous, and this has potentially important implications for intervention. Identifying distinct subtypes of patients may represent a first step in identifying which treatments work best for which individuals. METHODS A cluster-analysis on dimensional personality disorder (PD) features, as assessed with the SCID-I...

CONTEXT Patterns of comorbidity among mental disorders are thought to reflect the natural organization of mental illness. Factor analysis can be used to investigate this structure and construct a quantitative classification system. Prior studies identified 3 dimensions of psychopathology: internalizing, externalizing, and thought disorder. However, research has largely relied on common disorder...

Platelet MAO activity was estimated in 60 male drug free schizophrenics and 26 controls matched for age. The paranoid group had significantly lower enzyme activity than the non-paranoid group and controls. Patients with premorbid schizoid personality had significantly lower enzyme activity than patients with non-schizoid premorbid personality and controls. A significant negative correlation bet...

Because humans need both autonomy and interdependence, persons with either an extreme collectivist orientation (allocentrics) or extreme individualist values (idiocentrics) may be at risk for possession of some features of psychopathology. Is an extreme personality style a risk factor primarily when it conflicts with the values of the surrounding society? Individualism-collectivism scenarios an...

BACKGROUND This study extends previous findings of the risks posed by childhood major depressive disorder and other psychopathological features for later personality disorder (PD) in a random sample of 551 youths. METHODS Self-reports and mother reports were used to evaluate DSM-III-R (Axes I and II) psychiatric disorders at mean ages of 12.7, 15.2, and 21.1 years. Logistic regression was use...

Anders Behring Breivik carried out a massacre in Norway on July 22, 2011, killing a total 77 persons and leaving 42 others severely wounded. He detonated a bomb in Oslo and then drove to the island of Utøya, where he shot and killed youngsters gathered at a youth camp. The authors performed an analysis of Breivik's writing style in his extensive manifesto which he published hours before the att...

The current study examines mechanisms of racial differences in symptoms of paranoid personality disorder (PPD) in a sample of adults ages 55-64 from the St. Louis, MO area. Socioeconomic status (SES) and childhood trauma were tested as intervening variables in the association between race and PPD symptoms using structural equation modeling. PPD symptoms were modeled as a latent variable compose...

Despite a consensus that psychosocial adversity plays a role in the onset of psychosis, the nature of this role in relation to persecutory paranoia remains unclear. This study examined the complex relationship between perceived ethnic discrimination and paranoid ideation in individuals at Ultra High Risk (UHR) for psychosis using a virtual reality paradigm to objectively measure paranoia. Data ...