condition than in the control condition (n = 28, Z = 2.289, P&lt;0.05, Wilcoxon signed-rank test; see Figure 5D ). This finding, taken together with the results from Experiments 6 -- 9, provides very strong evidence that the size of the body we experience ownership of has a direct effect on the perception of object size and distance. We found two main results. First, we induced full body illusions where participants experienced ownership of abnormally large and small artificial bodies. We theorize that the size of the artificial body used in this type of illusion is potentially unlimited as long as all the parts of the artificial body are scaled (up or down) proportionally. This might explain why the present illusion works well with both large and small bodies, whereas earlier studies on illusionary ownership of small and large rubber hands have found asymmetrical results, with larger hands producing greater effects [24] , [25] . Unlike the present illusions, altering the size of one body part disproportionally could be interpreted as a change in distance with respect to the head and eyes. The illusion of owning a large hand can be explained by an illusion of a decreased distance between the hand and the eyes of the observer, but the reverse pattern is harder to obtain since an increase of the distance between the hand and the eye would be accompanied by an elongated neck or arm which would imply an incongruent body representation. Second, we found that the very