The contribution of stimulating multiple body parts simultaneously to the illusion of owning an entire artificial body

The full-body ownership illusion exploits multisensory perception to induce a feeling of an entire artificial body. Although previous research has shown that synchronous visuotactile stimulation single body part is sufficient for illusory the whole body, effect combining across multiple parts remains unknown. Therefore, 48 healthy adults participated in with conditions involving (illusion) or asynchronous (control) one, two, three simultaneously (2×3 design). We used questionnaires isolate five specific (left arm, right trunk, left leg, leg) from experience and sought test not only increased versus but also potentially varying degrees intensity related number stimulated. Illusory all body-part ratings were significantly higher following than ( p -values < .01). Since non-stimulated received stimulation, results are consistent engages Furthermore, we noted (which often always stimulated this experiment) never stimulated). Regarding stimulating on explicit ratings, there was no evidence significant main stimulations = .850) any interaction synchronicity .160), as assessed by linear mixed modelling. Instead, median indicated moderate affirmation (+1) sensation conditions, finding mirrored comparable onset times. In sum, appears be ‘all-or-nothing’ phenomenon depends upon irrespective parts.