{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,2]],"date-time":"2026-04-02T02:27:36Z","timestamp":1775096856090,"version":"3.50.1"},"reference-count":78,"publisher":"Cambridge University Press (CUP)","issue":"5","license":[{"start":{"date-parts":[[2021,9,14]],"date-time":"2021-09-14T00:00:00Z","timestamp":1631577600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Psychol. Med."],"published-print":{"date-parts":[[2023,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S0033291721003524_sec_a1\"><jats:title>Background<\/jats:title><jats:p>Difficulties in the ability to adapt beliefs in the face of new information are associated with psychosis and its central symptom \u2013 paranoia. As cognitive processes and psychotic symptoms are both known to be sensitive to stress, the present study investigated the exact associations between stress, adapting of beliefs [reversal learning (RL), bias against disconfirmatory evidence (BADE), and jumping to conclusions (JTC)] and paranoia. We hypothesized that paranoia would increase under stress and that difficulties in adapting of beliefs would mediate or moderate the link between stress and paranoia. Furthermore, we hypothesized that the investigated effects would be strongest in the group of individuals diagnosed with a psychotic disorder.<\/jats:p><\/jats:sec><jats:sec id=\"S0033291721003524_sec_a2\" sec-type=\"methods\"><jats:title>Methods<\/jats:title><jats:p>We exposed 155 participants (38 diagnosed with a psychotic disorder, 40 individuals with attenuated psychotic symptoms, 39 clinical controls diagnosed with an obsessive-compulsive disorder, and 38 healthy controls) to a control condition and a stress condition, in which we assessed their levels of paranoia and their ability to adapt beliefs. We applied multilevel models to analyze the data.<\/jats:p><\/jats:sec><jats:sec id=\"S0033291721003524_sec_a3\" sec-type=\"results\"><jats:title>Results<\/jats:title><jats:p>Paranoia was higher in the stress condition than in the control condition, <jats:italic>b<\/jats:italic> = 1.142, <jats:sc>s.e.<\/jats:sc> = 0.338, <jats:italic>t<\/jats:italic>(150) = 3.381, <jats:italic>p<\/jats:italic> &lt; 0.001. RL, BADE, and JTC did not differ between conditions and did not mediate or moderate the association between stress and paranoia (all <jats:italic>p<jats:sub>s<\/jats:sub><\/jats:italic> &gt; 0.05).<\/jats:p><\/jats:sec><jats:sec id=\"S0033291721003524_sec_a4\" sec-type=\"conclusions\"><jats:title>Conclusions<\/jats:title><jats:p>The results support the assumption that stress triggers paranoia. However, the link between stress and paranoia does not seem to be affected by the ability to adapt beliefs.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s0033291721003524","type":"journal-article","created":{"date-parts":[[2021,9,14]],"date-time":"2021-09-14T06:21:05Z","timestamp":1631600465000},"page":"1881-1890","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":5,"title":["Aberrant adapting of beliefs under stress: a mechanism relevant to the formation of paranoia?"],"prefix":"10.1017","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1961-9810","authenticated-orcid":false,"given":"Katarina","family":"Krkovic","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ulrike","family":"Nowak","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mathias 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