According to a new research, there is possibility that with illusion, people can be made to believe that they're invisible. With the help of clever camera angles, virtual goggles and physical caresses, researchers made people feel as if they had an invisible body.

It has been found by the researchers that feeling invisible decreased the anxiety brought on by standing in front of an audience. The study published in the journal Scientific Reports. In a previous study, Dr. Arvid Guterstam, a neuroscientist at the Karolinska Institute in Sweden and co-author of the study and his colleagues showed that it was possible to trick people into feeling that an invisible hand was their own.

In the latest study, they wanted to give people the illusion of a completely invisible body. The researchers decided to carry out eight different experiments and for this they recruited 125 healthy volunteers.

The volunteers were asked to wear head-mounted displays that gave real-time video from two cameras. The two cameras set up in the corner of a room at the participants' head level and were facing the floor so that when the participants looked down, their bodies would appear to be empty space.

After that the researchers made use of a paintbrush to stroke different parts of every participant's body and at the same time moving another paintbrush in the corresponding part of the camera's view in order to provide the illusion that the brush was stroking an invisible body. According to the researchers, the brush was applied to the stomach, the lower arms, the lower legs and the feet.

In one set of experiments, the researchers applied the brush strokes to every participant's body in and out of sync with stokes on the invisible body in order to find out whether it would affect the illusion.

After that the researchers pretended to threaten the invisible body with help of a knife. In another set of experiments, when the participants experienced one minute of the invisible body illusion, they were put in front of an audience of ‘serious-looking strangers’ mimicking what is normally regarded as a stressful social situation.

According to the researchers, the idea behind it was that if people were to see their own bodies as invisible, they could believe they were invisible to others also.