Transdiagnostic symptom dimensions in individuals at ultra-high risk for psychosis: towards dimensional representations of pluripotent risk
Intro Research has shifted focus from categorical to dimensional conceptualisations of mental health conditions. This is supported by high overlap between disorders, particularly psychosis spectrum and affective disorders, which cuts across traditional diagnostic boundaries. While there is evidence...
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| Hauptverfasser: | , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
August 2025
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| In: |
Early intervention in psychiatry
Year: 2025, Jahrgang: 19, Heft: 8, Pages: 1-12 |
| ISSN: | 1751-7893 |
| DOI: | 10.1111/eip.70086 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1111/eip.70086 Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1111/eip.70086 
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| Verfasserangaben: | Julia C.C. Schulte-Strathaus, Christian Rauschenberg, Isabell Paetzold, Diego Quattrone, Jessica Hartmann, Paul Amminger, Hok Pan Yuen, Patrick D. McGorry, Barnaby Nelson, Ulrich Reininghaus |
MARC
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| 245 | 1 | 0 | |a Transdiagnostic symptom dimensions in individuals at ultra-high risk for psychosis |b towards dimensional representations of pluripotent risk |c Julia C.C. Schulte-Strathaus, Christian Rauschenberg, Isabell Paetzold, Diego Quattrone, Jessica Hartmann, Paul Amminger, Hok Pan Yuen, Patrick D. McGorry, Barnaby Nelson, Ulrich Reininghaus |
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| 520 | |a Intro Research has shifted focus from categorical to dimensional conceptualisations of mental health conditions. This is supported by high overlap between disorders, particularly psychosis spectrum and affective disorders, which cuts across traditional diagnostic boundaries. While there is evidence for a general factor of psychopathology in individuals with schizophrenia, schizoaffective disorder, and psychotic bipolar I disorder, transdiagnostic dimensions of psychopathology have not been investigated in young individuals at ultra-high risk for psychosis, that is, youth with pluripotent symptom patterns preceding first-episode psychosis. The current study sought to investigate (1) whether there is a general dimension underlying psychopathological symptoms in individuals and (2) whether the formation of specific symptom dimensions (i.e., positive symptoms, negative symptoms, affect, and activation) is justified alongside a general dimension. Methods Item factor analyses were conducted on symptom ratings of the Brief Psychiatric Rating Scale at baseline in the Staged Treatment in Early Psychosis (STEP) trial. Results In total, 342 UHR participants were included. A bifactor model with one general symptom dimension and four specific factors (positive symptoms, negative symptoms, affect, and activation) yielded the best relative model fit and interpretability when compared to uni- and multidimensional models, albeit absolute model fit statistics provided no strong evidence to support this finding. However, model stability and interpretability tentatively suggest it can help tell apart pluripotent and domain-specific symptom patterns. Conclusion Findings cautiously suggest that the BPRS may index both a general dimension and several more specific dimensions, reflecting pluripotency underlying psychological features in the sample. A ‘common ground’ across the risk syndrome in this heterogeneous sample, with various comorbidities, would lend further evidence to support the notion of a transdiagnostic phenotype in youth. | ||
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