FIGURE 3.

Questionnaire results. The figure represents the average ipsatized ratings of the Virtual leg illusion questionnaire. Ownership: The ratings of the experienced illusory ownership were higher when the participants were seeing the virtual legs (Body similarity: p = 0.001), when the dummy legs or objects were seen from the first-person viewpoint (Visuo-spatial viewpoint: p = 0.008) and when the visuo-tactile stimulation was synchronous (Synchrony: p = 0.024). Illusory touch: The strength of the experienced illusory touch was stronger in the conditions where participants saw the virtual legs (Body similarity: p = 0.047), when the legs or objects were presented in the first-person viewpoint (Visuo-spatial viewpoint: p = 0.044), and when the visuo-tactile stimulation was synchronous (Synchrony: p < 0.001). Illusion of motor agency: The sense of motor agency was the strongest during the condition where the virtual legs were seen in the first-person viewpoint and stimulated in synchrony with participants’ real legs (three-way interaction: p = 0.027). Illusion of proprioceptive rotation: The illusory sense that legs have changed position was rated the strongest in the conditions where the visuo-tactile stimulation of virtual legs or objects was synchronous and they were presented in the third-person viewpoint (Visuo-spatial viewpoint × Synchrony: p = 0.001). The error bars depict the standard error of the mean. Sync, Synchronous; Async, Asynchronous; 1 POV, First-person viewpoint; 3 POV, Third-person viewpoint; LEGS, Dummy legs; OBJECT, Wooden objects. **p < 0.01.