Illusory Visual Completion of an Object’s Invisible Backside Can Make Your Finger Feel Shorter

@article{Ekroll2016IllusoryVC,
  title={Illusory Visual Completion of an Object’s Invisible Backside Can Make Your Finger Feel Shorter},
  author={Vebj\orn Ekroll and Bilge Sayim and Ruth Van der Hallen and Johan Wagemans},
  journal={Current Biology},
  year={2016},
  volume={26},
  pages={1029-1033}
}
In a well-known magic trick known as multiplying balls, conjurers fool their audience with the use of a semi-spherical shell, which the audience perceives as a complete ball [1]. Here, we report that this illusion persists even when observers touch the inside of the shell with their own finger. Even more intriguingly, this also produces an illusion of bodily self-awareness in which the finger feels shorter, as if to make space for the purely illusory volume of the visually completed ball. This… CONTINUE READING
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