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

Humpston, Clara S. and Evans, Lisa H. and Teufel, Christoph and Ihssen, Niklas and Linden, David E. J. (2017) 'Evidence of absence : no relationship between behaviourally measured prediction error response and schizotypy.', Cognitive neuropsychiatry., 22 (5). pp. 373-390.

Abstract

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: One hundred and two 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
Full text:(VoR) Version of Record
First Live Deposit - 12 July 2017
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Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1080/13546805.2017.1348289
Publisher statement:© 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/ licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Record Created:12 Jul 2017 10:58
Last Modified:21 Sep 2017 16:53

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