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Laurin A, Ramoz N, Ameller A, Dereux A, Zajac J, Bonjour M, Tebeka S, Le Strat Y, Dubertret C. Self-consciousness impairments in schizophrenia with and without first rank symptoms using the moving rubber hand illusion. Conscious Cogn 2021; 93:103154. [PMID: 34052640 DOI: 10.1016/j.concog.2021.103154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 04/18/2021] [Accepted: 05/17/2021] [Indexed: 11/17/2022]
Abstract
INTRODUCTION The moving rubber hand illusion allows the evaluation both the sense of body ownership and agency using visuo-motor stimulations. METHODS We used the moving rubber hand illusion in anatomic congruence with explicit measures to compare active asynchronous and passive synchronous movements in patients diagnosed with schizophrenia with first rank symptoms (FRS) (n = 31) versus without FRS (n = 25). RESULTS Patients with FRS are characterized by a lack of agency in active asynchronous condition. The two groups had no sense of ownership in synchronous passive condition. Using a multivariate regression model, we found an association between agency and body ownership measures in the active asynchronous condition in two groups (OR: 1.825, p < 0.001). In the passive condition, this association was only present in the group with first rank symptoms (OR: 2.04, p < 0.001). CONCLUSION Temporal proximity and sensorimotor information are essential in the understanding of self-consciousness disorders in schizophrenia.
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Affiliation(s)
- Andrew Laurin
- AP-HP, Centre Hospitalier Universitaire de Colombes, Hôpital Louis Mourier, Colombes, France; INSERM UMRS1266, Institute of Psychiatry and Neurosciences of Paris, Paris, France.
| | - Nicolas Ramoz
- INSERM UMRS1266, Institute of Psychiatry and Neurosciences of Paris, Paris, France
| | - Aurély Ameller
- INSERM UMRS1266, Institute of Psychiatry and Neurosciences of Paris, Paris, France
| | - Antoine Dereux
- INSERM UMRS1266, Institute of Psychiatry and Neurosciences of Paris, Paris, France
| | - Julie Zajac
- AP-HP, Centre Hospitalier Universitaire de Colombes, Hôpital Louis Mourier, Colombes, France
| | - Maxime Bonjour
- Hospices Civils de Lyon, Service de Biostatistique, Lyon, France; Université Claude Bernard Lyon 1, Faculté de Médecine Lyon Est, Lyon, France
| | - Sarah Tebeka
- AP-HP, Centre Hospitalier Universitaire de Colombes, Hôpital Louis Mourier, Colombes, France; INSERM UMRS1266, Institute of Psychiatry and Neurosciences of Paris, Paris, France
| | - Yann Le Strat
- AP-HP, Centre Hospitalier Universitaire de Colombes, Hôpital Louis Mourier, Colombes, France; INSERM UMRS1266, Institute of Psychiatry and Neurosciences of Paris, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Faculté de Médecine Bichat-Lariboisière, France
| | - Caroline Dubertret
- AP-HP, Centre Hospitalier Universitaire de Colombes, Hôpital Louis Mourier, Colombes, France; INSERM UMRS1266, Institute of Psychiatry and Neurosciences of Paris, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, Faculté de Médecine Bichat-Lariboisière, France
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Ameller A, Gorwood P. Poids de la comorbidité addictive dans le risque d’observance partielle au traitement médicamenteux et de rechute dans la schizophrénie. Encephale 2015; 41:174-83. [DOI: 10.1016/j.encep.2015.02.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Accepted: 02/03/2015] [Indexed: 11/26/2022]
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Jardri R, Pins D, Lafargue G, Very E, Ameller A, Delmaire C, Thomas P. Increased overlap between the brain areas involved in self-other distinction in schizophrenia. PLoS One 2011; 6:e17500. [PMID: 21408008 PMCID: PMC3052363 DOI: 10.1371/journal.pone.0017500] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Accepted: 02/07/2011] [Indexed: 12/03/2022] Open
Abstract
Self-awareness impairments are frequently mentioned as being responsible for the positive symptoms of schizophrenia spectrum disorders. However, the neural correlates of self-other distinction in this pathology are still poorly understood. In the present study, we developed an fMRI procedure in order to examine self-other distinction during speech exchange situations. Fifteen subjects with schizophrenia were compared to 15 matched controls. The results revealed an increased overlap between the self and non-self cortical maps in schizophrenia, in the medial frontal and medial parietal cortices, as well as in the right middle temporal cortex and the right inferior parietal lobule. Moreover, these neural structures showed less BOLD amplitude differences between the self and non-self conditions in the patients. These activation patterns were judged to be independent of mirror-like properties, familiarity or body-ownership processing. Significantly, the increase in the right IPL signal was found to correlate positively with the severity of first-rank symptoms, and thus could be considered a “state-marker” of schizophrenia, whereas temporal and medial parieto-frontal differences appear to be “trait-markers” of the disease. Such an increased overlap between self and non-self cortical maps might be considered a neuro-physiological signature of the well established self-awareness impairment in people suffering from schizophrenia.
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Affiliation(s)
- Renaud Jardri
- Laboratoire de Neurosciences Fonctionnelles et Pathologies, EA-4559, Université Lille Nord de France, Lille, France.
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Wilquin H, Delevoye-Turrell Y, Ameller A, Wing AM, Thomas P. Production de rythmes dans la schizophrénie : un déficit de l’alternance de temps. L’Année psychologique 2010. [DOI: 10.3917/anpsy.104.0517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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