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  4. Rethinking Body Ownership in Schizophrenia: Experimental and Meta-analytical Approaches Show no Evidence for Deficits
 
research article

Rethinking Body Ownership in Schizophrenia: Experimental and Meta-analytical Approaches Show no Evidence for Deficits

Shaqiri, Albulena  
•
Roinishvili, Maya
•
Kaliuzhna, Mariia  
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2018
Schizophrenia Bulletin

Schizophrenia is a severe psychiatric disorder, in which patients experience an abnormal sense of self. While deficits in sensorimotor self-representation (agency) are well docu- mented in schizophrenia, less is known about other aspects of bodily self-representation (body ownership). Here, we tested a large cohort (N = 59) of chronic schizophrenia patients and matched controls (N = 30) on a well-established body illusion paradigm, the Full Body Illusion (FBI). In this paradigm, changes in body ownership are induced through prolonged multisensory stimulation, in which participants are stroked on their back while seeing the stroking on the back of a vir- tual body. When the felt and seen stroking are synchronous, participants typically feel higher identification with the seen body as well as a drift in self-location towards it. However, when the stroking is asynchronous, no such changes occur. Our results show no evidence for abnormal body ownership in schizophrenia patients. A meta-analysis of previous work corroborates this result. Thus, while schizophrenia patients may be impaired in the sense of agency, their multisensory bodily self-representation, as tested here, seems to be unaf- fected by the illness.

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Type
research article
DOI
10.1093/schbul/sbx098
Author(s)
Shaqiri, Albulena  
Roinishvili, Maya
Kaliuzhna, Mariia  
Favrod, Ophélie
Chkonia, Eka
Herzog, Michael H.  
Blanke, Olaf  
Salomon, Roy  
Date Issued

2018

Publisher

Oxford University Press

Published in
Schizophrenia Bulletin
Volume

44

Issue

3

Start page

643

End page

652

Note

National Licences

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPSY  
CNP  
LNCO  
Available on Infoscience
August 3, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/139533
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