Title
Embodiment and copresence in collaborative interfaces
Abstract
As collaborative computer systems are evolving, the use of spatial, three-dimensional interfaces for multiplayer games, groupware systems, and multi-user chat systems, for example, is increasing rapidly. This paper provides a theoretical underpinning for understanding the relevance of user embodiments and copresence within such three-dimensional collaborative computer interfaces. Firstly, the issue of embodiment is traced back through its origins in philosophy and psychology literature, and theories are identified, potentially helpful in understanding key issues concerning user embodiments in collaborative virtual environments. A hybrid avatar/agent model to achieve permanent user embodiments in such environments is discussed. Since copresence of other users within such environments has been shown to be an important factor for the experience of presence, a prototype embodied conversational agent has been designed to simulate copresence. A series of controlled experiments involving the prototype agent is discussed, highlighting the effects of simulated copresence on users' experience of presence. Results suggest that, despite its shortcomings, the prototype agent does seem to have increased participants' experience of presence. Evidence was found that even limited copresence as provided by the current prototype agent is sufficient to help users feel presence in the environment. The results seem to confirm that copresence simulated by agents can complement avatar technology and therefore that a hybrid avatar/ agent model can potentially achieve permanent virtual presence of all participants.
Year
DOI
Venue
2004
10.1016/j.ijhcs.2003.12.014
Int. J. Hum.-Comput. Stud.
Keywords
Field
DocType
hybrid avatar,collaborative interface,limited copresence,prototype agent,permanent virtual presence,agent model,avatar technology,conversational agent,simulated copresence,current prototype agent,user embodiment,three dimensional
Collaborative software,Computer science,Embodied cognition,Virtual presence,Human–computer interaction,Dialog system,Philosophy of psychology,Avatar
Journal
Volume
Issue
ISSN
61
4
1071-5819
Citations 
PageRank 
References 
43
3.86
7
Authors
3
Name
Order
Citations
PageRank
Michael Gerhard1433.86
David Moore21149.93
Dave Hobbs312914.01