The dark side of cognitive illusions: when an illusory belief interferes with the acquisition of evidence-based knowledge

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dc.contributor.authorYarritu Corrales, Ion
dc.contributor.authorMatute, Helena
dc.contributor.authorLuque Ruiz, David
dc.date.accessioned2026-02-13T10:49:56Z
dc.date.available2026-02-13T10:49:56Z
dc.date.issued2015-10-10
dc.date.updated2026-02-13T10:49:56Z
dc.description.abstractCognitive illusions are often associated with mental health and well-being. However, they are not without risk. This research shows they can interfere with the acquisition of evidence-based knowledge. During the first phase of the experiment, one group of participants was induced to develop a strong illusion that a placebo medicine was effective to treat a fictitious disease, whereas another group was induced to develop a weak illusion. Then, in Phase 2, both groups observed fictitious patients who always took the bogus treatment simultaneously with a second treatment which was effective. Our results showed that the group who developed the strong illusion about the effectiveness of the bogus treatment during Phase 1 had more difficulties in learning during Phase 2 that the added treatment was effective.en
dc.description.sponsorshipFunding support for this research was provided by Grant PSI2011-26965 from Dirección General de Investigación of the Spanish Government and Grant IT363-10 from Departamento de Educación, Universidades e Investigación of the Basque Government, both granted to Helena Matuteen
dc.identifier.citationYarritu, I., Matute, H., & Luque, D. (2015). The dark side of cognitive illusions: when an illusory belief interferes with the acquisition of evidence-based knowledge. British Journal of Psychology, 106(4), 597-608. https://doi.org/10.1111/BJOP.12119
dc.identifier.doi10.1111/BJOP.12119
dc.identifier.eissn2044-8295
dc.identifier.issn0007-1269
dc.identifier.urihttps://hdl.handle.net/20.500.14454/5109
dc.language.isoeng
dc.publisherJohn Wiley and Sons Ltd
dc.titleThe dark side of cognitive illusions: when an illusory belief interferes with the acquisition of evidence-based knowledgeen
dc.typejournal article
dcterms.accessRightsopen access
oaire.citation.endPage608
oaire.citation.issue4
oaire.citation.startPage597
oaire.citation.titleBritish Journal of Psychology
oaire.citation.volume106
oaire.licenseConditionhttps://creativecommons.org/licenses/by-nc-nd/4.0/
oaire.versionVoR
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