Balancing body ownership: Visual capture of proprioception and affectivity during vestibular stimulation

摘要: Abstract The experience of our body as own (i.e. ownership) involves integrating different sensory signals according to their contextual relevance multisensory integration). Until recently, most studies integration and ownership concerned only vision, touch proprioception; the role other modalities, such vestibular system interoception, has been neglected remains poorly understood. In particular, no study date directly explored combined effect interoceptive on ownership. Here, we investigated for first time how Galvanic Vestibular Stimulation (left, right, sham), tactile affectivity (a reclassified modality manipulated by applying at C-tactile optimal versus non-optimal velocities), combination, influence proprioceptive subjective measures during a rubber hand illusion paradigm with healthy participants (N = 26). Our results show that stimulation (left GVS) significantly increased drift towards mere visual exposure hand. Moreover, it also enhanced participants’ manipulations synchronicity affective touch. These findings suggest influences integration, possibly re-weighting both two-way relationship between proprioception well three-way proprioception, vision We discuss these in relation current predictive coding models