Hochschulbibliographie

Augmented Reality (AR) and Virtual Reality (VR) are pushing from the labs towards consumers, especially with social applications. These applications require visual representations of humans and intelligent entities. However, displaying and animating photo-realistic models comes with a high technical cost while low-fidelity representations may evoke eeriness and overall could degrade an experience. Thus, it is important to carefully select what kind of avatar to display. This article investigates the effects of rendering style and visible body parts in AR and VR by adopting a systematic literature review. We analyzed 72 papers that compare various avatar representations. Our analysis includes an outline of the research published between 2015 and 2022 on the topic of avatars and agents in AR and VR displayed using head-mounted displays, covering aspects like visible body parts (e.g., hands only, hands and head, full-body) and rendering style (e.g., abstract, cartoon, realistic); an overview of collected objective and subjective measures (e.g., task performance, presence, user experience, body ownership); and a classification of tasks where avatars and agents were used into task domains (physical activity, hand interaction, communication, game-like scenarios, and education/training). We discuss and synthesize our results within the context of today's AR and VR ecosystem, provide guidelines for practitioners, and finally identify and present promising research opportunities to encourage future research of avatars and agents in AR/VR environments.

This article focuses on how exposure to different media genres relates to two components of attitudes, Muslims as a group and Islam as a religion. It also highlights how these components mediate the relationship between media exposure and behavioral intention, namely voting intention towards banning veiling in public spaces. The analysis builds on an online survey conducted in Switzerland. We found that exposure to specific media genres is not equally associated with attitudes towards Muslims versus attitudes towards Islam. Contrary to our expectation, we did not find the association to be stronger when it came to influencing attitudes towards Muslims as compared to influencing attitudes towards Islam. However, our findings clearly showed that it matters whether people consume news via television or newspapers, especially mass-market (commercial television and tabloids) versus upmarket news (public television and quality newspapers). Attitudes towards Muslims living in Switzerland are more negative among those consuming mass-market news than those consuming upmarket news. Anti-Islam attitudes, however, were only associated with reading newspapers - both tabloids and quality newspapers. The findings provided only partial support for the mediating role of attitudes towards Muslims and Islam concerning the indirect relation between media exposure and voting intention towards banning veiling.