FIGURE 6.

Survey question responses indicate the level of embodiment in the four experimental conditions (n = 10). Figure shows the median (bold red line), interquartile range (blue box), 1.5 times the interquartile range (black whiskers) and one outlier (green +). The motor-only, sensory-only, and closed-loop test conditions each exhibited a significantly higher response on the test questions compared with the control questions (U-test; p < 0.0001 for each of these three conditions), whereas no such difference was found for the visual fixation control condition (U-test; p = 0.09). Each of the three test conditions (open-loop motor control, open-loop sensory feedback and closed-loop control) showed a greater level of embodiment compared with the visual fixation control condition (multiple comparisons; p < 0.005, p < 0.0001, and p < 0.0005, respectively). The open-loop sensory feedback condition also showed a significantly higher level of embodiment relative to the open-loop motor control condition (multiple comparisons; p < 0.05).