Sensorimotor induction of auditory misattribution in early psychosis

Roy Salomon, Pierre Progin, Alessandra Griffa, Giulio Rognini, Kim Q. Do, Philippe Conus, Silvia Marchesotti, Fosco Bernasconi, Patric Hagmann, Andrea Serino, Olaf Blanke

Research output: Contribution to journalArticlepeer-review


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 auditoryverbal 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.

Original languageEnglish
Pages (from-to)947-954
Number of pages8
JournalSchizophrenia Bulletin
Issue number4
StatePublished - 8 Jul 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Author(s) 2020.


  • Early psychosis
  • Predictive processing
  • Sense of agency
  • Sensorimotor conflict
  • Source monitoring

ASJC Scopus subject areas

  • Psychiatry and Mental health


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