TY - CHAP U1 - Konferenzveröffentlichung A1 - Kruijff, Ernst A1 - Riecke, Bernhard A1 - Trepkowski, Christina A1 - Kitson, Alexandra T1 - Upper Body Leaning can affect Forward Self-Motion Perception in Virtual Environments T2 - Banic, Suma et al. (Eds.): SUI '15. Proceedings of the 3rd ACM Symposium on Spatial User Interaction N2 - The study of locomotion in virtual environments is a diverse and rewarding research area. Yet, creating effective and intuitive locomotion techniques is challenging, especially when users cannot move around freely. While using handheld input devices for navigation may often be good enough, it does not match our natural experience of motion in the real world. Frequently, there are strong arguments for supporting body-centered self-motion cues as they may improve orientation and spatial judgments, and reduce motion sickness. Yet, how these cues can be introduced while the user is not moving around physically is not well understood. Actuated solutions such as motion platforms can be an option, but they are expensive and difficult to maintain. Alternatively, within this article we focus on the effect of upper-body tilt while users are seated, as previous work has indicated positive effects on self-motion perception. We report on two studies that investigated the effects of static and dynamic upper body leaning on perceived distances traveled and self-motion perception (vection). Static leaning (i.e., keeping a constant forward torso inclination) had a positive effect on self-motion, while dynamic torso leaning showed mixed results. We discuss these results and identify further steps necessary to design improved embodied locomotion control techniques that do not require actuated motion platforms. KW - navigation KW - virtual environments KW - leaning, self-motion perception KW - vection KW - body-centric cues KW - embodied interfaces KW - 3D user interface SN - 978-1-4503-3703-8 SB - 978-1-4503-3703-8 U6 - https://doi.org/10.1145/2788940.2788943 DO - https://doi.org/10.1145/2788940.2788943 SP - 103 EP - 112 PB - Association for Computing Machinery CY - New York, NY, United States ER -