Misattributing the source of self-generated representations related to dissociative and psychotic symptoms

Chui De Chiu, Mei Chih Meg Tseng, Yi Ling Chien, Shih Cheng Liao, Chih Min Liu, Yei Yu Yeh, Hai Gwo Hwu

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Objective: An intertwined relationship has been found between dissociative and psychotic symptoms, as the two symptom clusters frequently co-occur, suggesting some shared risk factors. Using a source monitoring paradigm, previous studies have shown that patients with schizophrenia made more errors in source monitoring, suggesting that a weakened sense of individuality may be associated with psychotic symptoms. However, no studies have verified a relationship between sense of individuality and dissociation, and it is unclear whether an altered sense of individuality is a shared sociocognitive deficit underlying both dissociation and psychosis. Method: Data from 80 acute psychiatric patients with unspecified mental disorders were analyzed to test the hypothesis that an altered sense of individuality underlies dissociation and psychosis. Behavioral tasks, including tests of intelligence and source monitoring, as well as interview schedules and self-report measures of dissociative and psychotic symptoms, general psychopathology, and trauma history, were administered. Results: Significant correlations of medium effect sizes indicated an association between errors attributing the source of self-generated items and positive psychotic symptoms and the absorption and amnesia measures of dissociation. The associations with dissociative measures remained significant after the effects of intelligence, general psychopathology, and trauma history were excluded. Moreover, the relationships between source misattribution and dissociative measures remained marginally significant and significant after controlling for positive and negative psychotic symptoms, respectively. Limitations: Self-reported measures were collected from a small sample, and most of the participants were receiving medications when tested, which may have influenced their cognitive performance. Conclusions: A tendency to misidentify the source of self-generated items characterized both dissociation and psychosis. An altered sense of individuality embedded in self-referential representations appears to be a common sociocognitive deficit of dissociation and psychosis.

Original languageEnglish
Article number541
JournalFrontiers in Psychology
Volume7
Issue numberAPR
DOIs
Publication statusPublished - 2016

Keywords

  • Dissociation
  • Generation effect
  • Psychosis
  • Self
  • Source monitoring
  • Trauma

ASJC Scopus subject areas

  • Psychology(all)

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