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Impaired self-recognition in individuals with no full-blown psychotic symptoms represented across the continuum of psychosis: a meta-analysis

Published online by Cambridge University Press:  29 May 2020

Layla Lavallé ,
Clément Dondé ,
Łukasz Gawęda ,
Jérome Brunelin Open the ORCID record for Jérome Brunelin [Opens in a new window]  and
Marine Mondino
Layla Lavallé
Affiliation:
Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, PSYR2 Team, Lyon, F-69000, France Lyon University, F-69000, France Centre Hospitalier le Vinatier, Batiment 416, 95 Bd Pinel, 69678Bron, France
Clément Dondé
Affiliation:
Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, PSYR2 Team, Lyon, F-69000, France Lyon University, F-69000, France Centre Hospitalier le Vinatier, Batiment 416, 95 Bd Pinel, 69678Bron, France
Łukasz Gawęda
Affiliation:
Experimental Psychopathology Lab, Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland
Jérome Brunelin*
Affiliation:
Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, PSYR2 Team, Lyon, F-69000, France Lyon University, F-69000, France Centre Hospitalier le Vinatier, Batiment 416, 95 Bd Pinel, 69678Bron, France
Marine Mondino
Affiliation:
Lyon Neuroscience Research Center, INSERM U1028, CNRS UMR5292, PSYR2 Team, Lyon, F-69000, France Lyon University, F-69000, France Experimental Psychopathology Lab, Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland
*
Author for correspondence: Jérome Brunelin, E-mail: [email protected]
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Abstract

Background

Impairments in self-recognition (i.e. recognition of own thoughts and actions) have been repeatedly shown in individuals with schizophrenia. According to classical clinical characterizations, schizophrenia is included in a continuum encompassing a large range of genetic statuses, psychotic states and symptoms. The current meta-analysis aims to determine whether self-recognition is affected by individuals within the psychosis continuum.

Method

Three populations were considered: people with an at-risk mental state for psychosis (ARMS), hallucination-prone individuals and unaffected relatives of patients with schizophrenia. Eleven studies contrasted self-recognition between these three populations (n = 386) and healthy controls (n = 315) and four studies used correlational analysis to estimate comparable effects (n = 629). Eligible studies used experimental paradigms including source-monitoring and self-monitoring.

Results

We observed significantly reduced self-recognition accuracy in these populations [g = −0.44 (−0.71 to −0.17), p = 0.002] compared to controls. No influence of the type of population, experimental paradigm or study design was observed.

Conclusion

The present analysis argues for self-recognition deficits in populations with no full-blown psychotic symptoms represented across the continuum of psychosis.

Keywords

At-risk mental stateclinical high-riskhallucination-pronemeta-analysisschizophreniaself-monitoringself-recognitionsource-monitoringunaffected relatives
Type
Original Article
Information
Psychological Medicine , Volume 51 , Issue 16 , December 2021 , pp. 2864 - 2874
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Copyright
Copyright © The Author(s) 2020. Published by Cambridge University Press

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