The Effect of Elastic Feedback on the Perceived User Experience and Presence of Travel Methods in Immersive Environments

摘要

Mid-air interaction achieved through handtracking or controller in Virtual Reality (VR) is performed without an explicit spatial reference. One solution for creating such a reference is elastic feedback, which we realized via tension springs attached to a tracked VR-controller. Thereby, directional force is exerted and perceived by the user. A study was conducted to investigate the effects of elastic feedback on users in virtual travel tasks. Therefore, the elastic mode of the input device was compared to an isotonic mode, without any perceivable force. Also, two virtual travelling methods, a driving mode and a flight mode, were investigated in the study. The main goal of the study was to analyze, how elastic feedback influences user experience and presence perception. Statistical analysis with ANOVA of data from 24 subjects revealed significant main effects for the elastic mode on both, the User Experience Questionnaire (UEQ) and the Igroup Presence Questionnaire (IPQ). In addition, the subjects missed fewer target objects on average during the travel task. However, analysis of task completion times indicated no relevant differences. Although not all individual scales of UEQ and IPQ showed significant outcomes, the result indicates that immersive travel interfaces could benefit from the use of elastic feedback.