GustoGear: A Cross-Modal Interface Emphasizing Tactile and Flavor Communication for Extended Reality

This study introduces a cross-modal, tongue-involved interface designed to enrich taste and touch perception within Mixed Reality (MR) environments. It features a novel gear-like mechanism loaded with various flavored conductive jellies, forming a cross-modal platform. This interface enables the gear to present different flavor units to the user's tongue, activated by specific virtual events. This setup fosters mutual communication and a playful experience between the physical and virtual worlds, leveraging the synesthesia of taste and tactile perceptions.