Sensorimotor Induction of Auditory Misattribution in Early Psychosis.

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Serval ID
serval:BIB_B30CFB1C3380
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Sensorimotor Induction of Auditory Misattribution in Early Psychosis.
Journal
Schizophrenia bulletin
Author(s)
Salomon R., Progin P., Griffa A., Rognini G., Do K.Q., Conus P., Marchesotti S., Bernasconi F., Hagmann P., Serino A., Blanke O.
ISSN
1745-1701 (Electronic)
ISSN-L
0586-7614
Publication state
Published
Issued date
08/07/2020
Peer-reviewed
Oui
Volume
46
Number
4
Pages
947-954
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
Dysfunction of sensorimotor predictive processing is thought to underlie abnormalities in self-monitoring producing passivity symptoms in psychosis. Experimentally induced sensorimotor conflict can produce a failure in bodily self-monitoring (presence hallucination [PH]), yet it is unclear how this is related to auditory self-monitoring and psychosis symptoms. Here we show that the induction of sensorimotor conflict in early psychosis patients induces PH and impacts auditory-verbal self-monitoring. Participants manipulated a haptic robotic system inducing a bodily sensorimotor conflict. In experiment 1, the PH was measured. In experiment 2, an auditory-verbal self-monitoring task was performed during the conflict. Fifty-one participants (31 early psychosis patients, 20 matched controls) participated in the experiments. The PH was present in all participants. Psychosis patients with passivity experiences (PE+) had reduced accuracy in auditory-verbal self-other discrimination during sensorimotor stimulation, but only when sensorimotor stimulation involved a spatiotemporal conflict (F(2, 44) = 6.68, P = .002). These results show a strong link between robotically controlled alterations in sensorimotor processing and auditory misattribution in psychosis and provide evidence for the role of sensorimotor processes in altered self-monitoring in psychosis.
Keywords
early psychosis, predictive processing, sense of agency, sensorimotor conflict, source monitoring
Pubmed
Web of science
Create date
14/02/2020 16:37
Last modification date
14/07/2023 5:54
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