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We discuss issues relating to presence arising from the recent evolution of tangible interaction techniques as an alternative interaction paradigm to the familiar WIMP-based Graphical User Interfaces (GUIs). The intersection of sensory, cognitive and also emotional aspects in such interfaces takes us a significant step further than GUI techniques. We introduce our concept of Tangible Presence in Blended Reality Space, and its study as an emerging weaving of HCI and presence research. An experimental study is then described, which examined the influence of three key factors in the way blended realities may be implemented: tangibility, viewpoint and avatar identity. The study examined the effect of manipulations of these factors on rated presence and self-presence. Our findings emphasize the importance of tangibility for presence, but suggest that presence and self-presence are unrelated phenomena. Finally, as critical concerns in future work to design and implement blended reality spaces for a variety of purposes, context sensitivity and usability issues are discussed.

This book explores how our lives and social interactions have become split between two intertwined, but not integrated, realities: the physical and the digital. Our sense of presence in the here and now has become fragmented, and yet earlier design approaches reinforced the problem, rather than leading to improvements. The authors address these issues by laying out a new human computer interaction (HCI) design approach – human-experiential design – rooted in a return to first principles of how people understand the world, both consciously and unconsciously. The application of this approach to the design of blended reality spaces is described in detail. Examples and scenarios of designing them to overcome the problems inherent in a variety of mixed reality settings are provided. Human-Experiential Design of Presence in Everyday Blended Reality will appeal to undergraduate and graduate students and researchers in interaction design, psychology, HCI and computer application studies, as well as practicing interaction designers and computer professionals. It will also be of interest to communication, media and urban design students, and to all readers with an interest in the technology-mediated future.

Blended Reality Space is our term for an interactive mixed-reality environment where the physical and the virtual are intimately combined in the service of interaction goals and communication environments aimed at health support and rehabilitation. The present study examines the effect on rated presence and self-presence of three key factors in the way blended realities may be implemented for these purposes. Our findings emphasize the importance of tangibility for presence, but suggest that presence and self-presence are unrelated phenomena. These findings will be incorporated into design principles for our planned work to develop free movement-based interactions for motor rehabilitation as well as blended-reality spaces for collaboration between hospitals, care organizations, and the home.