The rubber hand illusion is influenced by self-recognition

•We examine how visual self-recognition influences the Rubber Hand illusion (RHI).•The onset of the RHI is slower for a self-recognition than non-recognition group.•Proprioceptive drift is smaller for the self-recognition than non-recognition group.•The subjective experience of the RHI does not diff...

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Veröffentlicht in:Neuroscience letters 2020-02, Vol.720, p.134756-134756, Article 134756
Hauptverfasser: O’Dowd, A., Newell, F.N.
Format: Artikel
Sprache:eng
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Zusammenfassung:•We examine how visual self-recognition influences the Rubber Hand illusion (RHI).•The onset of the RHI is slower for a self-recognition than non-recognition group.•Proprioceptive drift is smaller for the self-recognition than non-recognition group.•The subjective experience of the RHI does not differ between groups.•Visual self-recognition influences body plasticity. Susceptibility to the Rubber Hand Illusion (RHI) demonstrates that body ownership can be modulated by visuotactile inputs. In contrast to body-like images, other objects cannot be embodied suggesting that crossmodal interactions on body ownership are based on a ‘goodness-of-fit’ mechanism relative to one’s own body. However, it is not clear whether visual self-recognition influences susceptibility to the RHI, although evidence for individual differences in the perceptual body image on the RHI suggests that this may be the case. We investigated the role of self-recognition on the subjective experience of the RHI and measured proprioceptive drift and onset time of the RHI between two groups, one with the ability to identify an image of their own hand and the other without this ability. A typical RHI response was found overall with no group difference in the subjective experience of the RHI. However, a larger proprioceptive drift and an earlier onset time for the RHI was found for the non-recognisers than the self-recognition group. Our findings provide evidence for a link between a visual representation of one’s own body in long-term memory and plasticity of the body representation.
ISSN:0304-3940
1872-7972
DOI:10.1016/j.neulet.2020.134756