Behind the opaque curtain: A 20-year longitudinal study of dissociative and first-rank symptoms in schizophrenia-spectrum psychoses, other psychoses and non-psychotic disorders

SCHIZOPHRENIA RESEARCH

卷:223

Article

Humpston, Clara¹  Harrow, Martin²  Rosen, Cherise² 

[1] Univ Birmingham, Coll Life & Environm Sci, Sch Psychol, Inst Mental Hlth, Birmingham, W Midlands, England

[2] Univ Illinois, Dept Psychiat, Chicago, IL 60612 USA

关键词: Schizophrenia;    Psychosis;    Dissociation;    Depersonalization;    Derealization;    First-rank symptoms;   

DOI  :  10.1016/j.schres.2020.07.019

来源: Elsevier

【 摘 要 】

Background: Depersonalization and derealization are currently considered diagnostically distinct from first-rank symptoms (FRS) seen in schizophrenia-spectrum psychoses. Nevertheless, the lived experiences of these symptoms can be very similar phenomenologically. Aims: To investigate the interrelationships between depersonalization, derealization and FRS in individuals with different types of psychotic and non-psychotic diagnoses. Methods: The Chicago Follow-up Study was a prospective longitudinal research program designed to study psychopathology and recovery in psychiatric disorders consisting of 555 participants, who were recruited at index hospitalization and studied over six follow-up timepoints at approximately 2, 4.5, 7.5, 10, 15, and 20 years later. The primary clinical indices were depersonalization, derealization and Schneiderian FRS that were measured at index hospitalization and at each subsequent follow-up. Results: 62.8% of participants had at least four follow-ups. There were significant differences in the course and chronicity of depersonalization, derealization and first-rank symptoms across the three diagnostic groups. For the whole sample, derealization was significantly associated with FRS at 2-, 4.5- and 7.5-year follow-up timepoints whereas depersonalization was related to FRS from 10-year follow-up to 20-year follow-up. In participants with schizophrenia, overall depersonalization was more often associated with passivity phenomena whereas derealization was more often associated with overall delusions. There was also a significant effect of time on the associations between depersonalization, derealization and FRS across follow-ups. Conclusions: Depersonalization and derealization should be viewed as transdiagnostic phenomena that are associated with FRS psychopathology along a continuum, although they are more closely associated with schizophrenia-spectrum psychoses. (C) 2020 Elsevier B.V. All rights reserved.

【 授权许可】

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