This is a demo of illusion that is called Full Body Illusion. It is created while a person sees self (through a video or as a model here) from third perspective, i.e. from behind. An experimenter strokes the person on shoulder or back and at the same time person sees that the figure in front is stroked in the same way.
More information at [ Ссылка ]
![](https://i.ytimg.com/vi/rJ964LRrx1Y/maxresdefault.jpg)