3D virtual hand pointing with EMS and vibration feedback

Pointing is one of the most basic interaction methods for 3D user interfaces. Previous work has shown that visual feedback improves such actions. Here we investigate if electrical muscle stimulation (EMS) and vibration is beneficial for 3D virtual hand pointing. In our experiment we used a 3D version of a Fitts' task to compare visual feedback, EMS, vibration, with no feedback. The results demonstrate that both EMS and vibration provide reasonable addition to visual feedback. We also found good user acceptance for both technologies.