ISSN 2043-8087
Journal of Experimental Psychopathology
 Volume 3, Issue 4, 673-687, 2012
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Investigating the Corrective Effect of Forewarning On Memory and Meta-Memory Deficits in Schizophrenia Patients

Authors
Maarten J.V. Peters (a), Maike Engel, Marit Hauschildt (b), Steffen Moritz (b), Lena Jelinek (b), Henry Otgaar (a)
(a) Department of Clinical Psychological Science, Faculty of Psychology and Neuroscience, Maastricht University
(b) University Medical Center Hamburg-Eppendorf, Department of Psychiatry and Psychotherapy, Martinistrasse 52, 20246 Hamburg, Germany

Volume 3, Issue 4, 2012, Pages 673-687
DOI: http://dx.doi.org/10.5127/jep.022011

Abstract
A number of recent studies investigating (meta-)memory have detected that memory accuracy is decreased in schizophrenia and that at the same time patients hold false information with strong conviction. The aim of the present study was to test whether increasing meta-memory awareness (i.e., forewarning) could attenuate this pattern of results. Forty-seven schizophrenia patients and 47 healthy controls were administered two pictures of a visual false memory paradigm, one with forewarning and the second without. After both pictures, a recognition task required participants to make old-new discriminations along with confidence ratings. Results showed that, although the standard memory and meta-memory response patterns were replicated in this study, in which schizophrenia patients show decreased memory accuracy and knowledge corruption, the initial forewarning did not influence the robustness of these meta-memory deficits within schizophrenia patients.

Table of Contents
Introduction
Method
Participants
Materials and procedure
Visual false memory paradigm with forewarning
Statistical analyses
Results
Socio-demographic and background variables
Memory accuracy and bias
Meta-memory
Knowledge corruption index
Forewarning, memory accuracy and bias
Forewarning and meta-memory
Valence and arousal
Relationship with psychopathology
Discussion
Acknowledgements
References

Correspondence to
Maarten J.V. Peters, Maastricht University, Faculty of Psychology and Neuroscience, Department of Clinical Psychological Science, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.

Keywords
schizophrenia, memory, false memory, meta-memory, confidence, forewarning

Dates
Received 19 Oct 2010; Revised 3 Aug 2011; Accepted 4 Oct 2011; In Press 23 Apr 2012







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