Synchronous stimulation in the rubber hand illusion task boosts the subsequent sense of ownership on the vicarious agency task

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Cioffi, Maria Cristina; Hackett, Joshua and Moore, James W.. 2020. Synchronous stimulation in the rubber hand illusion task boosts the subsequent sense of ownership on the vicarious agency task. Consciousness and Cognition, 80, 102904. ISSN 1053-8100 [Article]

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Abstract or Description

The relationship between sense of agency and sense of ownership remains unclear. Here we investigated this relationship by manipulating ownership using the rubber hand illusion and assessing the resulting impact on self-experiences during the vicarious agency illusion. We tested whether modulating ownership towards another limb using the rubber hand illusion would subsequently influence the illusory experience of ownership and agency towards a similar-looking limb in the vicarious agency task. Crucially, the vicarious agency measures both sense of agency and sense of ownership at the same time, while removing the confounding influence of motor signals. Our results replicated the well-established effects of both paradigms. We also found that manipulating the sense of ownership with the rubber hand illusion influenced the subsequent vicarious experience of ownership but not the vicarious experience of agency. This supports the idea that sense of agency and sense of ownership are, at least partially, independent experiences.

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Article

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https://doi.org/10.1016/j.concog.2020.102904