BACKGROUND: Different psychological models of trauma-induced psychosis have been postulated, often based on the observation of "specific" associations between particular types of childhood trauma (CT) and particular psychotic symptoms or the co-occurrence of delusions and hallucinations. However, the actual specificity of these associations remains to be tested. METHODS: In 2 population-based studies with comparable methodology (Netherlands Mental Health Survey and Incidence Study-1 [NEMESIS-1] and NEMESIS-2, N = 13 722), trained interviewers assessed CT, psychotic symptoms, and other psychopathology. Specificity of associations was assessed with mixed-effects regression models with multiple outcomes, a statistical method suitable to examine specificity of associations in case of multiple correlated outcomes. RESULTS: Associations with CT were strong and significant across the entire range of psychotic symptoms, without evidence for specificity in the relationship between particular trauma variables and particular psychotic experiences (PEs). Abuse and neglect were both associated with PEs (OR abuse: 2.12, P < .001; OR neglect: 1.96, P < .001), with no large or significant difference in effect size. Intention-to-harm experiences showed stronger associations with psychosis than CT without intent (χ(2) = 58.62, P < .001). Most trauma variables increased the likelihood of co-occurrence of delusions and hallucinations rather than either symptom in isolation. DISCUSSION: Intention to harm is the key component linking childhood traumatic experiences to psychosis, most likely characterized by co-occurrence of hallucinations and delusions, indicating buildup of psychotic intensification, rather than specific psychotic symptoms in isolation. No evidence was found to support psychological theories regarding specific associations between particular types of CT and particular psychotic symptoms.
BACKGROUND: Different psychological models of trauma-induced psychosis have been postulated, often based on the observation of "specific" associations between particular types of childhood trauma (CT) and particular psychotic symptoms or the co-occurrence of delusions and hallucinations. However, the actual specificity of these associations remains to be tested. METHODS: In 2 population-based studies with comparable methodology (Netherlands Mental Health Survey and Incidence Study-1 [NEMESIS-1] and NEMESIS-2, N = 13 722), trained interviewers assessed CT, psychotic symptoms, and other psychopathology. Specificity of associations was assessed with mixed-effects regression models with multiple outcomes, a statistical method suitable to examine specificity of associations in case of multiple correlated outcomes. RESULTS: Associations with CT were strong and significant across the entire range of psychotic symptoms, without evidence for specificity in the relationship between particular trauma variables and particular psychotic experiences (PEs). Abuse and neglect were both associated with PEs (OR abuse: 2.12, P < .001; OR neglect: 1.96, P < .001), with no large or significant difference in effect size. Intention-to-harm experiences showed stronger associations with psychosis than CT without intent (χ(2) = 58.62, P < .001). Most trauma variables increased the likelihood of co-occurrence of delusions and hallucinations rather than either symptom in isolation. DISCUSSION: Intention to harm is the key component linking childhood traumatic experiences to psychosis, most likely characterized by co-occurrence of hallucinations and delusions, indicating buildup of psychotic intensification, rather than specific psychotic symptoms in isolation. No evidence was found to support psychological theories regarding specific associations between particular types of CT and particular psychotic symptoms.
Authors: I Janssen; L Krabbendam; M Bak; M Hanssen; W Vollebergh; R de Graaf; J van Os Journal: Acta Psychiatr Scand Date: 2004-01 Impact factor: 6.392
Authors: J Alonso; M C Angermeyer; S Bernert; R Bruffaerts; T S Brugha; H Bryson; G de Girolamo; R Graaf; K Demyttenaere; I Gasquet; J M Haro; S J Katz; R C Kessler; V Kovess; J P Lépine; J Ormel; G Polidori; L J Russo; G Vilagut; J Almansa; S Arbabzadeh-Bouchez; J Autonell; M Bernal; M A Buist-Bouwman; M Codony; A Domingo-Salvany; M Ferrer; S S Joo; M Martínez-Alonso; H Matschinger; F Mazzi; Z Morgan; P Morosini; C Palacín; B Romera; N Taub; W A M Vollebergh Journal: Acta Psychiatr Scand Suppl Date: 2004
Authors: Adela-Maria Isvoranu; Claudia D van Borkulo; Lindy-Lou Boyette; Johanna T W Wigman; Christiaan H Vinkers; Denny Borsboom Journal: Schizophr Bull Date: 2016-05-10 Impact factor: 9.306
Authors: Jordan E DeVylder; Courtney Cogburn; Hans Y Oh; Deidre Anglin; Melissa Edmondson Smith; Tanya Sharpe; Hyun-Jin Jun; Jason Schiffman; Ellen Lukens; Bruce Link Journal: Schizophr Bull Date: 2017-09-01 Impact factor: 9.306
Authors: Luis Alameda; Philippe Golay; Philipp S Baumann; Pierre Progin; Nadir Mebdouhi; Julien Elowe; Carina Ferrari; Kim Q Do; Philippe Conus Journal: Schizophr Bull Date: 2017-09-01 Impact factor: 9.306
Authors: Cassie Overstreet; Erin C Berenz; Kenneth S Kendler; Danielle M Dick; Ananda B Amstadter Journal: Psychiatry Res Date: 2016-10-25 Impact factor: 3.222