Since vestibular sensations are related to the sensation of presence, the motion chair is considered a key technique for providing highly realistic experiences in virtual reality (VR). However, motion chairs are extremely expensive and heavy. Galvanic Vestibular Stimulation (GVS), which induces virtual acceleration (or virtual head motion) by applying current to electrodes on the bilateral mastoids, is a promising alternative that can present highly realistic experiences, but it cannot induce only lateral and anteroposterior directional acceleration.
GVS RIDE induces tri-directional acceleration and enhances virtual acceleration (lateral, anteroposterior, and yaw rotation) to deliver realistic experience using four-pole GVS and a head-mounted display (HMD) in synchronization. The demonstration presents two sequences:
• Watching video without GVS, in which users experience a conventional VR experience as a stable field of view is moved though the vestibular sensation.
• Watching video with GVS, in which users perceive a higher sensation of presence. Since the GVS circuit is lightweight, reasonable, small, and easy to use, it can be easily adapted to conventional VR systems.