Verifying Sensorimotoric Coordination of Augmented Reality Selection under Hyper- and Microgravity


Future user interface technologies will shift away from conventional displays, mice and keyboards and will claim the joint use of our physical world. Augmented Reality bridges this gap by enhancing the real world with virtual information that can lead to an improved perception of our daily work life or complex tasks. At altered gravitational conditions, working in space station denotes an increased workload of astronauts’ performances of on-board activities. The use of Augmented Reality will support the space crew at handling intra-vehicular displays and control items in a natural manner. We present an experiment that has investigated the impact of hyper- and microgravity while performing selection tasks in a head-mounted Augmented Reality environment. We were interested in the correlation between the human body frame of reference and haptic feedback by precise pointing movements towards a target. To evaluate sensorimotoric coordination and workload we performed a comparative user study under parabolic flight conditions. In a within-subject design we evaluated different placement configurations of a virtual keyboard. The objective measures showed a significant requirement of haptic feedback.