One hand is occluded from sight and an artificial hand is lying in front of the participant. Synchronious paint brush strokes are applied to the same fingers of the occluded hand and the artificial hand. The participant rates the sense of ownership of the artificial hand on the Ownership Illusion Questionnaire or reports the felt position of his or her own hand against a ruler (proprioceptive drift).
Definition contributed by BNierula about nine months ago.