Presence has become a key concept in characterizing and evaluating Virtual Environments. Our contribution is to show that current measures of Presence, as a metric of users’ experience of Virtual Environments, are highly problematic: results from the literature cannot be repeated and it lacks a theoretical basis. We synthesize results from three experiments we conducted and in conclusion point ...

The role of VE content in the presence experience is controversial. Although a strong theoretical argument has been made that presence depends on the form of information presented and not the content, several relational studies have shown that content is strongly associated to presence. This paper presents an experiment which manipulated nondiegetic music played during exposure to a strongly th...

The concept of self-presence provides a framework for understanding how people connect to virtual self-representations on three distinct levels (body, emotions, and identity). The present study aims to build on previous support for the reliability and construct validity of this framework. Participants (N=81) who used avatars in a semester-long collaborative virtual group project were examined. ...

Many potential pervasive computing applications could use predictions of when a person will be at a certain place. Using a survey and GPS data from 34 participants in 11 households, we develop and test algorithms for predicting when a person will be at home or away. We show that our participants’ self-reported home/away schedules are not very accurate, and we introduce a probabilistic home/away...

In the example of the Venus statue there are the uncovered or so called original version and the covered or hidden version. Having the two objects, the visible and the covered, we have to acknowledge the fact that it is still an object, no matter of its presentation. These two different presentations of it are then divided into the known and the unknown. The statue covered with a veil raises mo...