Personality and risk for serious mental illness

The role of schemas in the experience of distress, burden, and wellbeing in parents and siblings of people with serious mental health difficulties

BACKGROUND

Caregivers of people with serious mental health difficulties (SMHD), such as schizophrenia or bipolar disorder, face various psychological challenges. It is unclear if the mechanisms underlying these challenges differ between different groups of caregivers. This study examined whether the relationship between maladaptive schemas and distress, burden, and reduced wellbeing differed between parents and siblings of people with SMHD.

METHODS

70 parents and 40 siblings completed an online survey that included measures of schemas (Young Schema Questionnaire-Short Form), depressive symptoms (Patient Health Questionnaire-9), anxiety symptoms (Generalised Anxiety Disorder Assessment-7), burden (Experience of Caregiving Inventory), and wellbeing (Ryff Scales of Psychological Wellbeing). Multivariate linear regression models with interaction effects were tested for each outcome of interest.

RESULTS

Compared to parents, siblings reported significantly higher scores in each schema domain, greater distress and burden, and reduced wellbeing. Univariate analyses revealed that Disconnection (β=0.52 [0.17, 0.91], t(100)=2.90, p=.005) and the interaction between Caregiver Group and Disconnection (β=-1.17 [-2.27, -0.13], t(100) =-2.49, p=.014) significantly predicted depressive symptoms. Schema domains predicted anxiety symptoms, burden, and wellbeing; there were no significant interaction effects in these models.

CONCLUSION

Siblings seem to experience greater psychological challenges than parents. Maladaptive schemas were linked to greater psychological challenges in both groups and the relationship between schemas and distress, burden, and wellbeing was similar in parents and siblings. Further research is needed to determine if there are group differences at the individual schema level.

Metacognition-Associated Factors in Physical and Occupational Therapy Students: A Cross-Sectional Study

BACKGROUND/OBJECTIVES

Supporting the mental well-being of students through their educational journey is of vital importance. The objective of this study was to investigate the relationship between metacognition, personality traits, and various factors affecting mental health in a cohort of physical therapy (PT) and occupational therapy (OT) students.

METHODS

This cross-sectional observational study involved a self-administered questionnaire (distributed in October to November 2020) that gathered demographic information and included six scales measuring personality characteristics, health literacy, self-management skills, exercise habits (benefits and barriers), cognitive thinking, and cognitive deliberateness and impulsivity.

RESULTS

A cohort of 195 PT and OT students participated in the study. The findings revealed significant associations between metacognition and personality, particularly the association between low cognitive self-confidence and high emotional instability. This link suggests that students who struggle with cognitive self-confidence may also experience greater emotional instability, highlighting a need for targeted mental health support. Additionally, health literacy was negatively correlated with anxiety, while metacognition was positively correlated with perceived exercise benefits.

CONCLUSIONS

This study highlights the importance of individualized metacognitive approaches to support students' mental well-being. Interventions should focus on strengthening cognitive self-confidence through methods such as resilience training, cognitive restructuring, and mindfulness practices to help manage emotional instability. Furthermore, promoting physical activity, particularly among female students, and incorporating gender-specific strategies could enhance mental health outcomes.

Covariation of preadult environmental exposures, adult brain imaging phenotypes, and adult personality traits

Exposure to preadult environmental exposures may have long-lasting effects on mental health by affecting the maturation of the brain and personality, two traits that interact throughout the developmental process. However, environment-brain-personality covariation patterns and their mediation relationships remain unclear. In 4297 healthy participants (aged 18-30 years), we combined sparse multiple canonical correlation analysis with independent component analysis to identify the three-way covariation patterns of 59 preadult environmental exposures, 760 adult brain imaging phenotypes, and five personality traits, and found two robust environment-brain-personality covariation models with sex specificity. One model linked greater stress and less support to weaker functional connectivity and activity in the default mode network, stronger activity in subcortical nuclei, greater thickness and volume in the occipital, parietal and temporal cortices, and lower agreeableness, consciousness and extraversion as well as higher neuroticism. The other model linked higher urbanicity and better socioeconomic status to stronger functional connectivity and activity in the sensorimotor network, smaller volume and surface area and weaker functional connectivity and activity in the medial prefrontal cortex, lower white matter integrity, and higher openness to experience. We also conducted mediation analyses to explore the potential bidirectional mediation relationships between adult brain imaging phenotypes and personality traits with the influence of preadult environmental exposures and found both environment-brain-personality and environment-personality-brain pathways. We finally performed moderated mediation analyses to test the potential interactions between macro- and microenvironmental exposures and found that one category of exposure moderated the mediation pathways of another category of exposure. These results improve our understanding of the effects of preadult environmental exposures on the adult brain and personality traits and may facilitate the design of targeted interventions to improve mental health by reducing the impact of adverse environmental exposures.

Personality traits as mediators of the relationship between childhood trauma and depression severity in bipolar disorder: A structural equation model

BACKGROUND

Childhood trauma is negatively associated with depression severity in bipolar disorder; however, the underlying mechanisms remain unclear. We investigated whether personality traits (neuroticism, extraversion, openness, agreeableness, conscientiousness) mediate the relationship between childhood trauma and the severity of bipolar depression.

METHODS

Data from 209 individuals with bipolar disorder recruited for the Prechter Longitudinal Study of Bipolar Disorder were analysed. Using structural equation modelling, we examined the direct and indirect associations between childhood trauma (Childhood Trauma Questionnaire) and depression severity (Hamilton Depression Rating Scale) - with the personality traits (NEO Personality Inventory-Revised) as mediators.

RESULTS

The direct effect of childhood trauma on depression severity (standardised β = 0.32, 95% bootstrap confidence interval [CI] = 0.20-0.45, p < 0.001) and the indirect effect via neuroticism (standardised β = 0.03, 95% bootstrap CI [0.002, 0.07], p = 0.039) were significant; supporting a partial mediation model. The indirect effect accounted for 9% of the total effect of childhood trauma on depression severity (standardised β = 0.09, 95% bootstrap CI [0.002, 0.19], p = 0.046). The final model had a good fit with the data (comparative fit index = 0.96; root mean square error of approximation = 0.05, 90% CI = [0.02, 0.07]).

CONCLUSION

Personality traits may be relevant psychological mediators that link childhood trauma to a more severe clinical presentation of bipolar depression. Consequently, a person's personality structure may be a crucial operative factor to incorporate in therapeutic plans when treating individuals with bipolar disorder who report a history of childhood trauma.