Childhood exposure to interpersonal violence is associated with greater transdiagnostic integration of psychiatric symptoms

Analysis of Protective Factors in Schoolchildren in England Using the Dual-factor Model of Mental Health

The dual-factor approach to mental health was employed to explore levels and interrelations of protective factors associated with resilience in a dataset of 30,841 schoolchildren aged 11-14 in England. ANOVA was used to contrast levels of protective factors between groups (combinations of higher/lower psychopathology and higher/lower wellbeing) and network analysis to explore protective factor interrelations. Levels of protective factors tended to be highest for those who had higher wellbeing and lower psychopathology (termed 'complete mental health'). Those with lower levels of protective factors were split between two subpopulations: having lower wellbeing and higher psychopathology (termed 'troubled'), and having lower wellbeing and lower psychopathology (termed 'vulnerable'). Analysis of the protective factor networks revealed that the four subpopulations of the model were distinguished by both their overall structure and individual node connectivity (the 'complete mental health' subpopulation demonstrated the greatest connectivity), though two were similar: those with higher wellbeing and higher psychopathology (termed 'symptomatic but content') and lower wellbeing and higher psychopathology ('troubled'). The results indicate that while 'vulnerable' and 'symptomatic but content' may be hard to discriminate conceptually, the former may reflect a lower capacity to cope during periods of adversity (i.e., show resilience). Overall, the results encourage a holistic approach to mental health screening, particularly as children with lower wellbeing had lower levels of the protective factors, regardless of their level of psychopathology. Moreover, interventions to improve protective factors associated with positive development in stressed environments may therefore have a greater impact on improving wellbeing than decreasing symptoms of psychopathology.

Disentangling heterogeneity of psychosis expression in the general population: sex-specific moderation effects of environmental risk factors on symptom networks

BACKGROUND

Psychosis expression in the general population may reflect a behavioral manifestation of the risk for psychotic disorder. It can be conceptualized as an interconnected system of psychotic and affective experiences; a so-called 'symptom network'. Differences in demographics, as well as exposure to adversities and risk factors, may produce substantial heterogeneity in symptom networks, highlighting potential etiological divergence in psychosis risk.

METHODS

To explore this idea in a data-driven way, we employed a novel recursive partitioning approach in the 2007 English National Survey of Psychiatric Morbidity (N = 7242). We sought to identify 'network phenotypes' by explaining heterogeneity in symptom networks through potential moderators, including age, sex, ethnicity, deprivation, childhood abuse, separation from parents, bullying, domestic violence, cannabis use, and alcohol.

RESULTS

Sex was the primary source of heterogeneity in symptom networks. Additional heterogeneity was explained by interpersonal trauma (childhood abuse and domestic violence) in women and domestic violence, cannabis use, ethnicity in men. Among women, especially those exposed to early interpersonal trauma, an affective loading within psychosis may have distinct relevance. Men, particularly those from minority ethnic groups, demonstrated a strong network connection between hallucinatory experiences and persecutory ideation.

CONCLUSION

Symptom networks of psychosis expression in the general population are highly heterogeneous. The structure of symptom networks seems to reflect distinct sex-related adversities, etiologies, and mechanisms of symptom-expression. Disentangling the complex interplay of sex, minority ethnic group status, and other risk factors may help optimize early intervention and prevention strategies in psychosis.

Developmental trauma: Conceptual framework, associated risks and comorbidities, and evaluation and treatment

Children exposed to adverse childhood experiences (ACEs) and pervasive interpersonal traumas may go on to develop PTSD and, in most cases, will further undergo a significant shift in their developmental trajectory. This paper examines contemporary research on Developmental Trauma (DT), which is inextricably linked to disruptions in social cognition, physiological and behavioral regulation, and parent-child attachments. Developmental trauma associated with early experiences of abuse or neglect leads to multi-faceted and longstanding consequences and underscores critical periods of development, complex stress-mediated adaptations, and multilevel, trans-theoretical influences in the diagnostic formulation and treatment of traumatized children, adolescents, and adults. Psychological and medical correlates of Developmental Trauma Disorder are considered, and directions for future research are discussed.