Natural Interaction with Hand Gestures and Tactile Feedback for large, high-res Displays

Human beings perceive their surroundings based on sensory information from diverse channels. However, for humancomputer interaction we mostly restrict the user on visual perception. To investigate the effect of additional tactile feedback on pointing and selection tasks we conducted a comparative evaluation study based on ISO 9241-9. The 20 participants performed horizontal and vertical one-directional tapping tasks with hand gesture input with and without tactile feedback on a large, high resolution display. In contrast to previous research we cannot confirm a benefit of tactile feedback on user performance. Our results show no significant effect in terms of effective index of performance and even a significant higher error rate for horizontal target alignment when using tactile feedback. Furthermore we found a significant difference in favor of the horizontal target alignment compared to the vertical one in terms of the effective index of performance.