Hand-to-Hand: An Intermanual Illusion of Movement
In this paper, we explore intermanual apparent tactile motion without any object between them.
November 13, 2017
ACM International Conference on Multimodal Interaction (ICMI) 2017
Dario Pittera (Disney Research/University of Sussex)
Marianna Obrist (University of Sussex)
Ali Israr (Disney Research)
Hand-to-Hand: an intermanual illusion of movement
Apparent tactile motion has been shown to occur across many contiguous part of the body, such as fingers, forearms, and back. A recent study demonstrated the possibility of eliciting the illusion of movement from one hand to the other when interconnected by a tablet. In this paper, we explore intermanual apparent tactile motion without any object between them. In a series of psychophysical experiments, we determine the control space for generating smooth and consistent motion, using two vibrating handles which we refer to as the Hand-to-Hand vibrotactile device. In a first experiment we investigated the occurrence of the phenomenon (i.e., movement illusion) and the generation of a perceptive model. In a second experiment, based on those results, we investigated the effect of hand postures on the illusion. Finally, in a third experiment, we explored two visuo-tactile matching tasks in a multimodal VR setting. Our results can be applied in VR applications with intermanual tactile interactions.