@inproceedings{, author = {Nitsch, Verena; Passenberg, Carolina; Peer, Angelika; Buss, Martin; Färber, Berthold}, title = {Assistance Functions for Collaborative Haptic Interaction in Virtual Environments and their Effect on Performance and User Comfort}, editor = {}, booktitle = {Proceedings of the 1st International Conference on Applied Bionics and BiomechanicsInternational Conference on Applied Bionics and Biomechanics (1., 2010, Venedig)}, series = {}, journal = {}, address = {}, publisher = {}, edition = {}, year = {2010}, isbn = {}, volume = {}, number = {}, pages = {}, url = {https://www.researchgate.net/publication/229058639_Assistance_Functions_for_Collaborative_Haptic_Interaction_in_Virtual_Environments_and_their_Effect_on_Performance_and_User_Comfort}, doi = {}, keywords = {VR ; haptic feedback ; multi-user ; usability ; task performance ; experimental evaluation}, abstract = {In shared virtual environments, multiple users can perform complex manipulations collaboratively, while receiving haptic feedback from the environment and other users. In single-user systems, dynamic assistance functions were shown to improve task performance; however, little is known about their effect on user perception. In this paper, state-of-theart assistance functions presented for single-user systems are transferred to a multi-user system. Aiming to assess the effect of these assistance functions on objective and perceived task performance, as well as on user comfort, an experimental user study has been conducted with a typical collaborative haptic interaction task. The analysis of the results showed that some assistance functions significantly improved movement coordination compared to unassisted execution of the task. The results further indicate that the effects of an assistance function on subjective performance and comfort ratings depend on the level of movement control that the user is afforded. The results of this study provide useful information for the design of effective and comfortable assistance functions.}, note = {}, institution = {Universität der Bundeswehr München, Fakultät für Luft- und Raumfahrttechnik, LRT 11 - Institut für Arbeitswissenschaft, Professur: Nitsch, Verena; Färber, Berthold}, }