TY - JOUR
PY - 2023//
TI - Linking childhood trauma and dissociation to psychotic symptoms in major depressive disorder, bipolar disorders, and schizophrenia: a transdiagnostic examination using patient and clinician ratings
JO - Psychological trauma: theory, research, practice, and policy
A1 - Chiu, Chui-De
A1 - Li, Dian-Jeng
A1 - Hsieh, Yung-Chi
A1 - Chou, Li-Shiu
A1 - Au, Josephine Sheron
A1 - Chen, Yi-Lung
A1 - Lin, Ching-Hua
SP - ePub
EP - ePub
VL - ePub
IS - ePub
N2 - OBJECTIVE: Symptomatic overlap between dissociation and psychosis is well documented; however, the pathogenesis of these two phenomena might be distinct. Few studies have analyzed the relation of dissociative and psychotic symptoms transdiagnostically. The current study examines an emerging trauma-dissociation theoretical model that accounts for psychotic symptoms across affective disorders and schizophrenia (SCZ).
METHOD: Psychiatric inpatients with DSM-5 major depressive disorder (MDD), bipolar disorders (BD) currently in a major depressive episode, and SCZ, and healthy controls (HC) were recruited. Potentially traumatizing events in childhood, dissociative symptoms, and psychotic symptoms were assessed. In addition to participant's self-report, dissociative and psychotic symptoms were rated by psychiatrists blind to the hypothesis. Path analysis was conducted.
RESULTS: Dissociation was commonly experienced by clinical participants, particularly for those with MDD or BD. For the SCZ group, ratings of dissociation differed between patient and clinician; specifically, patient-reported dissociation scores, but not clinician-rated scores, were higher than that of the HC group. Importantly, the links between childhood trauma, dissociation, and psychotic symptoms were not homogenous across the diagnostic groups. Dissociation mediated the relationship between childhood trauma and psychotic symptoms in the MDD and BD groups, but not the SCZ group.
CONCLUSION: Depending on the psychiatric condition, dissociation and psychosis have different clinical implications. Childhood trauma and dissociation provide an account for psychotic symptoms in patients diagnosed with MDD and BD, but not with SCZ. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
Language: en
LA - en SN - 1942-9681 UR - http://dx.doi.org/10.1037/tra0001584 ID - ref1 ER -