Associations between the Five-Factor Model personality traits and psychotic experiences in patients with psychotic disorders, their siblings and controls

Stability of personality traits over a five-year period in Swedish patients with schizophrenia spectrum disorder and non-psychotic individuals: a study using the Swedish universities scales of personality

“…Given this fact and the relative stability of the personality traits over time this is anticipated. The results are also in agreement with the majority of previous studies using other personality instruments that indicate that facets of neuroticism are particularly prominent in patients with psychotic disorders [3,8,10,11,23,24].…”

“…This makes personality an important aspect of psychosis and schizophrenia. Several studies have investigated personality in schizophrenia [8][9][10][11]. However, there is a dearth of previous studies that have analysed stability of personality traits in patients with psychotic disorder.…”

Relevance of Five-Factor Model personality traits for obsessive–compulsive symptoms in patients with psychotic disorders and their un-affected siblings

“…Also, they showed a trend for lower Extraversion. Similarly, previous studies in un-affected family members, have demonstrated higher levels of Neuroticism with an increasing level of familial risk for OCD (Samuels et al, 2000) and for psychosis (Boyette et al, 2013). In the latter study, siblings also presented with lower Extraversion on a trend level.…”

“…Although only prospective investigations will allow to draw causal conclusions, the investigation of first-degree relatives, who display an increased familial risk for the co-occurrence of psychosis and OCD (Poyurovsky et al, 2005), but do not experience relevant symptoms seems to be a useful approach in this regard. Boyette et al recently investigated associations between personality traits and psychotic symptoms and suggested that the levels of Neuroticism increase with the level of familial risk for psychosis (Boyette et al, 2013). Based on these findings, we suggest that by including un-affected siblings more can be learned about potential associations between personality traits and a dimensional liability for the co-occurrence of psychotic disorders and obsessive-compulsive symptoms.…”

Psychometric properties of the big five inventory in a Mexican sample (Propiedades psicométricas del Inventario de los Cinco Grandes en una muestra mexicana)

“…Maybe one of the most thoroughly tested and studied correlations of the model is the association between neuroticism and psychopathology. The influence of this factor on mental health has been consistently reported and there is extensive research, specially on its correlation with depression and anxiety, [6][7][8][9][10][11][12][13][14] but also with schizophrenia and psychotic disorders, [15][16][17] substance abuse, 18,19 internet gaming disorder, 20 the frequency in engaging in different risk behaviors, 21 response to treatment 13,22 and even health 23 and psychopathology in general.…”