Conspiracies and contagion: Two patterns of COVID-19 related beliefs associated with distinct mental symptomatology

The COVID-19 pandemic brought about unique challenges, leading to a simultaneous decline in global mental well-being and an increase in perceived social threats. The present study explores the interplay between COVID-19 beliefs and mental health symptoms in a multinational sample of 1523 individuals primarily from Canada, the US and Mexico. Between May 2020 and February 2021, participants completed an online survey assessing somatic symptoms, anxiety, depression, alexithymia, and psychotic-like symptoms, along with the newly developed COVID-19 beliefs questionnaire (CBQ). The CBQ consisted of a series of statements corresponding to different beliefs about the origins and consequences of the virus and it revealed two dimensions through Exploratory Factor Analysis: Fear of contagion of COVID-19 (FC) and COVID-19 denial/conspiratorial ideation (CI).

Correlation analyses and linear regressions revealed a negative correlation between these two belief patterns as well their distinct associations with mental health symptoms. Fear of contagion was positively predicted by somatic symptoms and anxiety. In contrast, COVID-19 denial/conspiratorial ideation was positively predicted by positive psychotic-like experiences, alexithymia, and depression, and negatively predicted by negative psychotic-like symptoms. Furthermore, the relationship between positive psychotic-like symptoms and CI was mediated negatively by negative psychotic-like symptoms, suggesting that individuals with higher self-reported delusional ideation and bizarre experiences but lower avolition during the pandemic were the most likely to endorse COVID-19 related conspiracy theories.

We provide an interpretation of these results according to which these two profiles represent distinct doxastic threat responses, shaped by the interaction between the non-specific pandemic distress response and individual proneness to mental health symptomatology.