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Article Dans Une Revue PLoS ONE Année : 2012

Belief revision and delusions: how do patients with schizophrenia take advice?

Résumé

The dominant cognitive model that accounts for the persistence of delusional beliefs in schizophrenia postulates that patients suffer from a general deficit in belief revision. It is generally assumed that this deficit is a consequence of impaired reasoning skills. However, the possibility that such inflexibility affects the entire system of a patient's beliefs has rarely been empirically tested. Using delusion-neutral material in a well-documented advice-taking task, the present study reports that patients with schizophrenia: 1) revise their beliefs, 2) take into account socially provided information to do so, 3) are not overconfident about their judgments, and 4) show less egocentric advice-discounting than controls. This study thus shows that delusional patients' difficulty in revising beliefs is more selective than had been previously assumed. The specificities of the task and the implications for a theory of delusion formation are discussed.

Domaines

Neurosciences

Dates et versions

hal-00904089 , version 1 (13-11-2013)

Identifiants

Citer

Mariia Kaliuzhna, Valérian Chambon, Nicolas Franck, Bérangère Testud, Jean-Baptiste van Der Henst. Belief revision and delusions: how do patients with schizophrenia take advice?. PLoS ONE, 2012, 7 (4), pp.e34771. ⟨10.1371/journal.pone.0034771⟩. ⟨hal-00904089⟩
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