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Dissociative and metacognitive factors in halluciantion-proneness when controlling for comorbid symptoms

Journal Article


Abstract


  • Introduction. Recent studies have linked hallucination-proneness to dysfunctional metacognitive beliefs, dissociation, and disrupted capacity to discriminate between internal and external cognitive events (reality discrimination). This study addressed a number of methodological limitations of previous research by investigating the relationship between hallucination-proneness and the aforementioned variables while controlling for comorbid symptoms. Method. A large sample of nonclinical participants was screened on measures of hallucination-proneness, cognitive intrusions, paranoid ideation, metacognitive beliefs, and dispositional mindfulness (including measures of dissociation-like experiences). In addition, a signal detection task was used to investigate reality discrimination in four subgroups of participants selected on the basis of their scores on hallucination-proneness and intrusions. Results. Regression analyses for the self-report data were conducted to investigate the predictors of hallucination-proneness and paranoia when controlling for comorbid symptoms. Also, between-group differences on the behavioural data were tested to determine whether perturbed reality discrimination is specifically associated with hallucination-proneness rather than cognitive intrusions. Results revealed that metacognitive beliefs are more strongly associated with intrusions and paranoia than hallucination-proneness, whereas hallucination-proneness is related to perturbed reality discrimination and dissociation. Conclusions. These results clarify previous research on metacognitive dysfunction in hallucination-proneness, and highlight the importance of controlling for the covariation among symptoms when investigating the cognitive processes underlying psychotic experiences.

Authors


  •   Verase, Filippo (external author)
  •   Barkus, Emma
  •   Bentall, Richard (external author)

Publication Date


  • 2011

Citation


  • Verase, F., Barkus, E. & Bentall, R. P. (2011). Dissociative and metacognitive factors in halluciantion-proneness when controlling for comorbid symptoms. Cognitive Neuropsychiatry, 16 (3), 193-217.

Scopus Eid


  • 2-s2.0-79955971182

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3474

Has Global Citation Frequency


Number Of Pages


  • 24

Start Page


  • 193

End Page


  • 217

Volume


  • 16

Issue


  • 3

Place Of Publication


  • United Kingdom

Abstract


  • Introduction. Recent studies have linked hallucination-proneness to dysfunctional metacognitive beliefs, dissociation, and disrupted capacity to discriminate between internal and external cognitive events (reality discrimination). This study addressed a number of methodological limitations of previous research by investigating the relationship between hallucination-proneness and the aforementioned variables while controlling for comorbid symptoms. Method. A large sample of nonclinical participants was screened on measures of hallucination-proneness, cognitive intrusions, paranoid ideation, metacognitive beliefs, and dispositional mindfulness (including measures of dissociation-like experiences). In addition, a signal detection task was used to investigate reality discrimination in four subgroups of participants selected on the basis of their scores on hallucination-proneness and intrusions. Results. Regression analyses for the self-report data were conducted to investigate the predictors of hallucination-proneness and paranoia when controlling for comorbid symptoms. Also, between-group differences on the behavioural data were tested to determine whether perturbed reality discrimination is specifically associated with hallucination-proneness rather than cognitive intrusions. Results revealed that metacognitive beliefs are more strongly associated with intrusions and paranoia than hallucination-proneness, whereas hallucination-proneness is related to perturbed reality discrimination and dissociation. Conclusions. These results clarify previous research on metacognitive dysfunction in hallucination-proneness, and highlight the importance of controlling for the covariation among symptoms when investigating the cognitive processes underlying psychotic experiences.

Authors


  •   Verase, Filippo (external author)
  •   Barkus, Emma
  •   Bentall, Richard (external author)

Publication Date


  • 2011

Citation


  • Verase, F., Barkus, E. & Bentall, R. P. (2011). Dissociative and metacognitive factors in halluciantion-proneness when controlling for comorbid symptoms. Cognitive Neuropsychiatry, 16 (3), 193-217.

Scopus Eid


  • 2-s2.0-79955971182

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/3474

Has Global Citation Frequency


Number Of Pages


  • 24

Start Page


  • 193

End Page


  • 217

Volume


  • 16

Issue


  • 3

Place Of Publication


  • United Kingdom