Psychotic Experiences Questionnaire. Part 2

BACKGROUND: On the basis of the concept of psychotic and psychotic-like experiences, delusions and auditory hallucinations presented in Part 1 of this article, the structure of the links between psychotic experiences and social anxiety and its components and psychological parameters is analyzed. A mediator model of the relationship between social anxiety and the phase of psychotic alienation — "experiencing external control" — is discussed. AIM: To investigate the parameters and stages of development of psychotic and psychotic-like experiences registered with the Psychotic Experiences Questionnaire in the context of analyzing the structure of relationships with psychological variables (social anxiety, metacognitive and cognitive phenomena). Тo construct a mediator model of the indirect effect of social anxiety components on the “experience of being controlled externally” mediated by thought suppression (“polar bear effect”). MATERIALS AND METHODS: The sample — 122 respondents, includes non-clinical and two clinical groups — with symptoms of the affective spectrum and with symptoms of the psychotic spectrum. The author's ‘Psychotic Experiences Questionnaire’ was used to assess the severity of psychotic experiences, the scales of which represent the phases of the unfolding of the experiences. Social anxiety and its components (author's “Social Anxiety and Social Anxiety Disorder Questionnaire”), cognitive (“Cognitive Flexibility Questionnaire”, “Behavioural Self-Regulation Style — SSPM 2020” questionnaire) and metacognitive (Thought Suppression Scale, author's “Self-Focused Attention Questionnaire”) strategies were determined. RESULTS: Pearson correlation analysis showed significant ‘direct’ associations of early and moderate psychotic and psychotic-like experiences with social anxiety and its components, metacognitive (self-focused attention and thought suppression) parameters, and ‘inverse’ links with cognitive parameters (cognitive component of conscious self-regulation and cognitive flexibility). Correlations with psychological parameters become insignificant in intense psychotic experiences. Using mediator analysis, the full indirect effects of the social anxiety components influence on the enhancement of “experiencing being controlled externally” as a phase of psychotic experiences maximum intensity were measured (mediator — thought suppression). CONCLUSION: Metacognitive strategies, social anxiety, disturbed self-regulation and flexibility play an important role in the genesis and maintenance of psychotic experiences. Significant correlations of the parameters with psychotic experience are shown, but at the height of alienation the significant correlations weaken. At the height of psychotic experience in the absence of direct effects it is possible to explicate the indirect influence of the predictor — social anxiety on the experience of controllability from the outside, mediated by thought suppression. This article is a continuation of the article by Sagalakova OA, Truevtsev DV, Zhirnova OV. Psychotic Experiences Questionnaire. Part 1. Neurology Bulletin. 2024;56(1):23–36. DOI: https://doi.org/10.17816/nb623959