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dc.contributor.authorPfuhl, Gerit
dc.date.accessioned2017-03-30T10:03:13Z
dc.date.available2017-03-30T10:03:13Z
dc.date.issued2016-08
dc.description.abstractBackground and objectives:<br>There are a range of mechanistic explanations on the formation and maintenance of delusions. Within the Bayesian brain hypothesis, particularly within the framework of predictive coding models, delusions are seen as an aberrant inference process characterized by either a failure in sensory attenuation or an aberrant weighting of prior experience. Testing of these Bayesian decision theories requires measuring of both the patients' confidence in their beliefs and the confidence they assign new, incoming information. In the Bayesian framework we apply here, the former is referred to as the prior while the latter is usually called the data or likelihood.<br> Methods and results:<br>This narrative review will commence by giving an introduction to the basic concept underlying the Bayesian decision theory approach to delusion. A consequence of crucial importance of this sketch is that it provides a measure for the persistence of a belief. Experimental tasks measuring these parameters are presented. Further, a modification of two standard reasoning tasks, the beads task and the evidence integration task, is proposed that permits testing the parameters from Bayesian decision theory.<br> Limitations:<br>Patients differ from controls by the distress the delusions causes to them. The Bayesian Decision theory framework has no explicit parameter for distress.<br> Conclusions:<br>A more detailed reporting of differences between patients with delusions is warranted.en_US
dc.descriptionManuscript. Published version available in <a href=http://dx.doi.org/10.1016/j.jbtep.2016.08.006>Journal of Behavior Therapy & Experimental Psychiatry (2016), doi 10.1016/j.jbtep.2016.08.006</a>en_US
dc.identifier.citationPfuhl G. A Bayesian perspective on delusions: Suggestions for modifying two reasoning tasks. Journal of Behavior Therapy and Experimental Psychiatry. 2016en_US
dc.identifier.cristinIDFRIDAID 1377061
dc.identifier.doi10.1016/j.jbtep.2016.08.006
dc.identifier.issn0005-7916
dc.identifier.issn1873-7943
dc.identifier.urihttps://hdl.handle.net/10037/10904
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalJournal of Behavior Therapy and Experimental Psychiatry
dc.rights.accessRightsopenAccessen_US
dc.subject.en_US
dc.subjectVDP::Samfunnsvitenskap: 200::Psykologi: 260en_US
dc.subjectVDP::Social science: 200::Psychology: 260en_US
dc.subjectVDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Psykiatri, barnepsykiatri: 757en_US
dc.subjectVDP::Medical disciplines: 700::Clinical medical disciplines: 750::Psychiatry, child psychiatry: 757en_US
dc.titleA Bayesian perspective on delusions: Suggestions for modifying two reasoning tasksen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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