Investigation of sex differences in delusion-associated cognitive biases

Chloé de Vos, Letizia Leanza, Amatya Mackintosh, Thies Lüdtke, Ryan Balzan, Steffen Moritz, Christina Andreou

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2 Citations (Scopus)

Abstract

In the past few decades, sex differences have been identified in a number of clinical, cognitive and functional outcomes in patients with schizophrenia spectrum disorders. However, to date, sex differences in higher-order cognitive biases have not been systematically studied. The present study aimed to examine sex differences in jumping-to-conclusions and evidence integration impairment based on data collected in two previous studies in patients with schizophrenia spectrum disorders and healthy controls. For this purpose, data from n = 58 patients and n = 60 healthy controls on the Fish Task (as a measure of jumping to conclusions) and bias against disconfirmatory evidence (BADE; as a measure of evidence integration) task were analyzed. Results indicated a lack of sex differences in jumping-to-conclusions and evidence integration impairment both in patients with schizophrenia spectrum disorders and healthy controls. Although the present study was adequately powered to detect sex differences of a low medium effect size, larger studies are warranted to exclude differences of a smaller magnitude between men and women regarding delusion-associated cognitive biases.

Original languageEnglish
Pages (from-to)515-520
Number of pages6
JournalPsychiatry Research
Volume272
DOIs
Publication statusPublished - Feb 2019

Keywords

  • cognitive biases
  • schizophrenia spectrum
  • sex differences

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    de Vos, C., Leanza, L., Mackintosh, A., Lüdtke, T., Balzan, R., Moritz, S., & Andreou, C. (2019). Investigation of sex differences in delusion-associated cognitive biases. Psychiatry Research, 272, 515-520. https://doi.org/10.1016/j.psychres.2018.12.121