title: Delusion proneness in nonclinical individuals and cognitive insight: the contributions of rumination and reflection.
abstract: Although previous research demonstrates that clinical individuals with delusions score low on one of the facets of cognitive insight, self-reflection, and high on the other facet, self-certainty, analogous studies of delusion proneness in nonclinical individuals have found that delusion proneness in nonclinical individuals associates with higher levels of both self-certainty and self-reflection. The present study sought to reconcile these inconsistent results by examining the contributions of different facets of self-reflection, rumination and reflection, to delusion proneness. One hundred fifty-two individuals completed three questionnaires: the Beck Cognitive Insight Scale (BCIS), the Peters et al. Delusions Inventory (PDI), and the Rumination-Reflection Questionnaire (RRQ). The results showed that the individuals scoring higher on delusion proneness demonstrated higher levels of both self-certainty and self-reflection on the BCIS as well as higher levels of rumination and reflection on the RRQ. As predicted, the strength of the relationship between BCIS self-reflection and delusion proneness was diminished when rumination was controlled for. These findings suggest that the previously observed positive relation between BCIS self-reflection and nonclinical delusion proneness might be driven, in part, by the ruminative aspect of self-reflection.
authors.affiliation: Department of Psychology, Macquarie University, Sydney, New South Wales, Australia. traci.anne.carse@hotmail.com
authors.forename: Traci
authors.initials: T
authors.lastname: Carse
authors.forename: Robyn
authors.initials: R
authors.lastname: Langdon
mesh_terms: D000293:Adolescent; D000328:Adult; D001364:Awareness / Q000502:physiology*; D003702:Delusions / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D012649:Self Concept; D012647:Self-Assessment; D011795:Surveys and Questionnaires; D055815:Young Adult