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"Transition" to Schizophrenia or Fluctuations within the Same Disorder?

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  1. The Hoarding Phenomenon in Schizophrenia Spectrum Disorders

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  2. Associations between Self-Disorders and First-Rank Symptoms: An Empirical Study

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  3. Social Life in the Schizophrenia Spectrum: A Phenomenological Study of Five Patients

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  4. Arguments for a Phenomenologically Informed Clinical Approach to Autism Spectrum Disorder

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  5. Measuring Psychotic-Like Experiences in the General Population

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  1. The Self in the Spectrum: A Meta-analysis of the Evidence Linking Basic Self-Disorders and Schizophrenia

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  2. The Paradox of Help-Seeking Behaviour in Psychosis

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  3. Phenomenology, delusions, and belief - Authors' reply

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BACKGROUND: To prevent or delay the onset of psychotic disorders or ameliorate their course, prodromal research has strived to identify and treat individuals at risk of developing psychosis. While this approach is laudable, it is, however, not entirely unproblematic from clinical and conceptual perspectives. For example, it remains unclear how we are to understand the development from a nonpsychotic, distressing condition such as schizotypal disorder to a psychotic disorder such as schizophrenia? The current terminology on the subject implies either a nonlinear jump ("conversion") or a more linear progression ("transition") from one disorder to another. To enrich our understanding of such diagnostic shifts, we examined the psychopathological pictures of patients who "transitioned" from schizotypal disorder to schizophrenia.

METHODS: From a larger study on psychopathology, we examined 40 patients who were diagnosed with schizotypal disorder at baseline. At 5-year follow-up, 30 patients maintained the diagnosis of schizotypal disorder, while 10 were re-diagnosed with schizophrenia. We examined detailed descriptions of the 10 patients who progressed to schizophrenia, comparing psychopathology and level of functioning.

RESULTS: The level of functioning decreased slightly from baseline to follow-up in 9 out of 10 patients. Eight patients had previously had micro-psychotic or psychotic experiences. All patients had self-disorders at baseline, and several patients had perceptual disorders. Nine patients had formal thought disorders at baseline. The progression is illustrated by 2 cases.

CONCLUSION: In this small study, we did not find any striking changes in any of the patients, neither in terms of psychopathological manifestations nor in terms of their level of functioning. Thus, rather than witnessing a genuine "conversion" or "transition" from schizotypal disorder to schizophrenia, we observed dimensional fluctuations within the same condition.

Original languageEnglish
JournalPsychopathology
Volume54
Issue number5
Pages (from-to)253-261
Number of pages9
ISSN0254-4962
DOIs
Publication statusPublished - Sep 2021

    Research areas

  • Diagnosis, Psychopathology, Psychosis, Schizophrenia, Schizotypy, Subjectivity

ID: 67569227