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Evidence of absence: no relationship between behaviourally measured prediction error response and schizotypy

Humpston, Clara ORCID:, Evans, Lisa ORCID:, Teufel, Christoph ORCID:, Niklas, Ihssen and Linden, David Edmund Johannes ORCID: 2017. Evidence of absence: no relationship between behaviourally measured prediction error response and schizotypy. Cognitive Neuropsychiatry 22 (5) , pp. 373-390. 10.1080/13546805.2017.1348289

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Introduction: The predictive processing framework has attracted much interest in the field of schizophrenia research in recent years, with an increasing number of studies also carried out in healthy individuals with nonclinical psychosis-like experiences. The current research adopted a continuum approach to psychosis and aimed to investigate different types of prediction error responses in relation to psychometrically defined schizotypy. Methods: 102 healthy volunteers underwent a battery of behavioural tasks including a) a force-matching task, b) a Kamin blocking task, and c) a reversal learning task together with three questionnaires measuring domains of schizotypy from different approaches. Results: Neither frequentist nor Bayesian statistical methods supported the notion that alterations in prediction error responses were related to schizotypal traits in any of the three tasks. Conclusions: These null results suggest that deficits in predictive processing associated with clinical states of psychosis are not always present in healthy individuals with schizotypal traits.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Cardiff University Brain Research Imaging Centre (CUBRIC)
Uncontrolled Keywords: Sensory prediction; Associative learning; Reversal learning; Prediction error; Psychosis continuum
Publisher: Taylor & Francis
ISSN: 1354-6805
Date of First Compliant Deposit: 4 July 2017
Date of Acceptance: 22 June 2017
Last Modified: 05 May 2023 21:39

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