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Somatoform Symptoms’ Influence on the Rubber Hand Illusion: Additional Analysis

Published online by Cambridge University Press:  23 March 2020

O. Perepelkina ,
G. Arina ,
M. Boboleva  and
V. Nikolaeva
G. Arina
Affiliation:
Lomonosov Moscow State University, Department of psychology, Moscow, Russia
M. Boboleva
Affiliation:
Lomonosov Moscow State University, Department of psychology, Moscow, Russia
V. Nikolaeva
Affiliation:
Lomonosov Moscow State University, Department of psychology, Moscow, Russia

Abstract

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Introduction

In the rubber hand illusion (RHI) [1], sense of body ownership is changed by synchronous touches to the hidden participant's hand and a visible rubber hand. It was previously shown [2] that medically unexplained symptoms were associated with the weaker RHI (n = 40).

Objectives

We used data from our previous research [3] and supplementary questionnaires to test the hypothesis that somatoform symptoms would be associated with the decreased response to RHI.

Methods

Subjects (n = 78) voluntarily undergo the following procedures: RHI experiment with measurement of proprioceptive drift and self-reports, Screening for Somatoform Disorders (SOMS-2) and Symptom Check List-90-Revised (the “somatization scale”).

Results

Robust regression was used to evaluate predictors influence: Drift/Self-reports∼SOMS-2 + somatization. SOMS-2 was a significant predictor for proprioceptive drift with positive coefficient (P < 0.05, adjusted), both predictors were insignificant for self-reports.

Conclusions

Thus, the results of [2] were not reproduced. We demonstrated on the larger sample, that the higher somatoform symptoms (scores of SOMS-2) predicted the stronger RHI. Since our research and [2] had been conducted on non-clinical groups, it is necessary to conduct the critical experiment on the clinical population.

The reported study was funded by RFBR according to the research project No.16-36-00394.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Type
e-poster walk: Consultation liaison psychiatry and psychosomatics–Part 1
Information
European Psychiatry , Volume 41 , Issue S1: Abstract of the 25th European Congress of Psychiatry , April 2017 , pp. S231
Copyright
Copyright © European Psychiatric Association 2017

References

Botvinick, M.Cohen, J.Rubber hands «feel» touch that eyes see. Nature 39166691998 10.1038/35784CrossRefGoogle ScholarPubMed
Miles, E.Poliakoff, E.Brown, R.J.Medically unexplained symptom reports are associated with a decreased response to the rubber hand illusion. Journal of Psychosomatic Research 2011;71 4:10.1016/j.jpsychores.2011.04.002CrossRefGoogle ScholarPubMed
Perepelkina, O.S.Rubber hand illusion psychosomatic pathology. IMRF2016 Abstract Book 2016Google Scholar
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