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research article

Sensorimotor Induction of Auditory Misattribution in Early Psychosis

Salomon, Roy  
•
Progin, Pierre
•
Griffa, Alessandra
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February 11, 2020
Schizophrenia Bulletin

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.

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Type
research article
DOI
10.1093/schbul/sbz136
Author(s)
Salomon, Roy  
Progin, Pierre
Griffa, Alessandra
Rognini, Giulio  
Do, Kim Q
Conus, Philippe
Marchesotti, Silvia  
Bernasconi, Fosco  
Hagmann, Patric
Serino, Andrea  
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Date Issued

2020-02-11

Published in
Schizophrenia Bulletin
Volume

46

Issue

4

Start page

947

End page

954

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LNCO  
CNP  
Available on Infoscience
February 20, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/166406
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