Literature DB >> 32235881

The rubber hand illusion in hypnosis provides new insights into the sense of body ownership.

Mirta Fiorio1, Michele Modenese2, Paola Cesari2.   

Abstract

Body ownership can be experimentally investigated with the rubber hand illusion (RHI), in which watching a rubber hand stroked synchronously with one's own hidden hand induces a feeling of ownership over the rubber hand. The aim of this study was to investigate response to the RHI in high (N = 21) and low (N = 19) hypnotizable individuals in normal waking state and in hypnosis. Response to the RHI was measured via a question on the illusory feeling of ownership and with proprioceptive drift. The Highs expressed an overall feeling of more ownership over the rubber hand in both the normal waking state and hypnosis, although both groups gave higher ownership scores after synchronous than after asynchronous stroking and the difference between conditions was similar across groups. Conversely, the proprioceptive drift appeared to be differentially modulated by hypnosis and hypnotic suggestibility: it was increased in the Highs and decreased in the Lows after hypnosis induction. These findings hint at an interplay between hypnotic suggestibility and hypnosis in modulating response to the RHI. The selective breakdown of proprioceptive drift among the Lows suggests resistance to recalibrate one's own limb in hypnosis.

Year:  2020        PMID: 32235881     DOI: 10.1038/s41598-020-62745-x

Source DB:  PubMed          Journal:  Sci Rep        ISSN: 2045-2322            Impact factor:   4.379


  2 in total

1.  Tactile information counteracts the attenuation of rubber hand illusion attributable to increased visuo-proprioceptive divergence.

Authors:  Piotr Litwin; Beata Zybura; Paweł Motyka
Journal:  PLoS One       Date:  2020-12-30       Impact factor: 3.240

2.  Demand characteristics challenge effects in embodiment and presence.

Authors:  Pierre-Pascal Forster; Harun Karimpur; Katja Fiehler
Journal:  Sci Rep       Date:  2022-08-18       Impact factor: 4.996

  2 in total

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