Article (Scientific journals)
Source monitoring for actions in adolescents with 22q11.2 deletion syndrome (22q11DS)
Debbané, Martin; Van der Linden, Martial; Glaser, Bronwyn et al.
2008In Psychological Medicine, 38 (6), p. 811-820
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Keywords :
Memory; Schizophrenia; Self-monitoring; VCFS; Adolescent; Attention; Awareness; Chromosome Deletion; Chromosomes, Human, Pair 22; Cognition Disorders; Confusion; Culture; DiGeorge Syndrome; Female; Hallucinations; Humans; Imagination; Internal-External Control; Male; Mental Recall; Personal Construct Theory; Risk Factors; Schizophrenic Psychology
Abstract :
[en] Background. Source monitoring consists in identifying the origin of mental events. Recent research suggests that confusions over internally generated mental events may represent a cognitive marker for increased proneness to psychotic symptoms and disorders. We have examined source monitoring for actions in adolescents with the 22q11.2 deletion syndrome (22q11DS), a neurogenetic disease associated with high rates of schizophrenia during adulthood, and expected to observe source monitoring deficits in comparison to IQ-matched and typically developing controls. Method. Eighteen adolescents with 22q11DS, 17 adolescents matched for age and IQ, and also 17 adolescents matched for age participated in this study. Our adapted action monitoring paradigm asked subjects to visualize a series of actions in three different conditions: (1) visualize themselves performing the action; (2) visualize the experimenter performing the action; or (3) simply repeat the action statements without visualization of the action performer. Results. The adolescents with 22q11DS performed adequately in terms of recognition (hits), but in comparison to both control groups, they committed more source confusions on correctly recognized items. Further examination revealed that the adolescents were more likely to demonstrate confusions between exterior sources in which the self was not involved. Conclusions. Source monitoring deficits can be observed in adolescents with 22q11DS, a syndrome putting them at high risk for developing schizophrenia. These deficits are discussed in terms of early cognitive processes associated with genetic risk for schizophrenia. © 2007 Cambridge University Press.
Disciplines :
Neurosciences & behavior
Author, co-author :
Debbané, Martin;  Service Médico-Pédagogique Research Unit, Department of Psychiatry, University of Geneva School of Medicine, Switzerland, Faculty of Psychology, University of Geneva, Switzerland, Service Médico-Pédagogique, Department of Psychiatry, University of Geneva School of Medicine, 1618 Boulevard St-Georges, 1211 Geneva 8, Switzerland
Van der Linden, Martial ;  Université de Liège - ULiège > Département de Psychologie > Département de Psychologie
Glaser, Bronwyn;  Service Médico-Pédagogique Research Unit, Department of Psychiatry, University of Geneva School of Medicine, Switzerland, Faculty of Psychology, University of Geneva, Switzerland
Eliez, Stéphan;  Service Médico-Pédagogique Research Unit, Department of Psychiatry, University of Geneva School of Medicine, Switzerland, Department of Genetic Medicine and Development, University of Geneva School of Medicine, Switzerland
Language :
English
Title :
Source monitoring for actions in adolescents with 22q11.2 deletion syndrome (22q11DS)
Publication date :
2008
Journal title :
Psychological Medicine
ISSN :
0033-2917
eISSN :
1469-8978
Publisher :
Cambridge University Press, United Kingdom
Volume :
38
Issue :
6
Pages :
811-820
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 01 March 2020

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