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Misattributing speech and jumping to conclusions: A longitudinal study in people at high risk of psychosis

Published online by Cambridge University Press:  15 April 2020

T.T. Winton-Brown ,
M.R. Broome ,
P. Allen ,
I. Valli ,
O. Howes ,
P.A. Garety ,
L.C. Johns  and
P. McGuire
T.T. Winton-Brown*
Affiliation:
Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, De Crespigny Park, PO Box 67, London SE5 8AF, United Kingdom
M.R. Broome
Affiliation:
Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, De Crespigny Park, PO Box 67, London SE5 8AF, United Kingdom Department of Psychiatry, University of Oxford, Oxford, United Kingdom
P. Allen
Affiliation:
Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, De Crespigny Park, PO Box 67, London SE5 8AF, United Kingdom
I. Valli
Affiliation:
Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, De Crespigny Park, PO Box 67, London SE5 8AF, United Kingdom
O. Howes
Affiliation:
Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, De Crespigny Park, PO Box 67, London SE5 8AF, United Kingdom
P.A. Garety
Affiliation:
Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
L.C. Johns
Affiliation:
Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
P. McGuire
Affiliation:
Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, De Crespigny Park, PO Box 67, London SE5 8AF, United Kingdom
*
*Corresponding author. Tel.: +44 20 7848 0970; fax: +44 20 7848 0976. E-mail address:[email protected] (T.T. Winton-Brown).
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Abstract

Biases in cognition such as Jumping to Conclusions (JTC) and Verbal Self-Monitoring (VSM) are thought to underlie the formation of psychotic symptoms. This prospective study in people with an At Risk Mental State (ARMS) for psychosis examined how these cognitive biases changed over time, and predicted clinical and functional outcomes. Twenty-three participants were assessed at clinical presentation and a mean of 31 months later. Performance on a JTC and VSM tasks were measured at both time points. Relationships to symptom severity, level of function and the incidence of psychotic disorder were then examined. The levels of symptoms, function and VSM all improved over time, while JTC was stable. Five participants (22%) developed a psychotic disorder during the follow-up period, but the risk of transition was not related to performance on either task at baseline, or to longitudinal changes in task performance. JTC performance correlated with symptom severity at baseline and follow-up. Similarly, performance on the two tasks was not related to the level of functioning at follow-up. Thus, while the ARMS is associated with both VSM and JTC biases, neither predict the onset of psychosis or the overall functional outcome.

Keywords

PsychosisCognitive biasesJumping to ConclusionsVerbal Self-MonitoringAt Risk Mental State
Type
Original article
Information
European Psychiatry , Volume 30 , Issue 1 , January 2015 , pp. 32 - 37
Copyright
Copyright © Elsevier Masson SAS 2015

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Footnotes

1

Dr Johns and Prof McGuire contributed equally to this work.

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