Reconsideration of Ouija board motion in terms of Haptics illusions

Abstract

Bodily movements caused involuntarily, for example while using a Ouija board, are called ideomotor actions. Our goal is to clarify the conditions under which Ouija board motion occurs, comparing visual, force, and vibrotactile cues and using a novel pseudo haptic illusion. In this study, we used a fingertip-type tactile display to find the conditions of occurrence of ideomotor action with the Ouija board. Results showed that vibrotactile cues lead to the occurrence of Ouija board motion, and that visual cues reinforce the displacement of motion.