Measuring the sense of presence and its relations to fear of heights in virtual environments

This article describes a study in which a genuine effect of presence-the development of fear of virtual stimuli-was provoked. Using a self-report questionnaire, the sense of presence within this situation was measured. It was shown that :Fear increased with higher presence. The method, which involved 37 test participants, was tested and validated with user tests at the Bauhaus University. A, growing body of research in human-computer interface design for virtual environments (VE) concentrates on the problem of how to involve the user in the VE. This effect, usually called immersion or the sense of presence, has been the subject of much research activity. This research focuses on the influence of technical and technological parameters on the sense of presence. However, little work has been done on the effects of experienced sense of presence. One field in which a sense of presence is necessary for the successful application of VEs is the treatment of acrophobic patients. Our goals are to (a) create a theory-based self-report measurement for presence and (b) measure presence independently from specific effects to validate the measurement. The anxiety resulting from the confrontation with a virtual cliff is used to validate the measurement of presence.