Abstract
Research on the impact of adding scent to modern immersive Virtual Reality (VR) technology to enhance its benefits is still in its infancy. While scent diffusers for Virtual Reality have not yet reached the mass market, there have been different approaches developing such diffusers in the research context. However, adding olfactory scents to VR experiences is still controversial due to mixed results as well as practical obstacles to its implementation. In this paper, the conceptualization and development of the Scent Box, a low-cost system for choreographed scent diffusion for VR experiences, are described, which enables users to explore different scents automatically while in a VR application. Subsequently, lessons learned as well as a practitioners’ guide are stated. We describe the functionality of the Scent Box and evaluate its chances and challenges for future VR settings based on our experiences during a feasibility test with N = 22. Hence, the aim of this paper is twofold: a) to describe the development and functionality of a prototype that enables users to explore multiple scents in a VR experience, and b) to provide insights into key lessons learned regarding usability and application of the Scent Box from an experimenter’s perspective with instructions and suggestions for further usage.
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Acknowledgments
We thank the Technical University Berlin and the Chair of Human-Machine Systems for funding the experiment and providing the facilities and opportunity to conduct this research.
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Appendix A
Appendix A
German sub-scale regarding the perception of tested multisensory enhancements (German version).
Question/Item | Answer |
---|---|
Ich habe den Blätterhut wahrgenommen | ja/nein |
Falls ja, inwiefern stimmen Sie den folgenden Aussage zu? (0 = überhaupt nicht bis 10 = sehr stark). Während der VR Erfahrung hat der Blätterhut dazu beigetragen, dass ich mich als Baum gefühlt habe | 0 = überhaupt nicht bis 10 = sehr stark |
Ich habe die Duftstoffe wahrgenommen: | ja/nein |
Falls ja, inwiefern stimmen Sie der folgenden Aussage zu? Während der VR Erfahrung haben die Duftstoffe dazu beigetragen, dass ich mich als Baum gefühlt habe | 0 = überhaupt nicht bis 10 = sehr stark |
Ich habe die Controller-Rinde wahrgenommen | ja/nein |
Falls ja, inwiefern stimmen Sie der folgenden Aussage zu?. Während der VR Erfahrung hat die Controller-Rinde dazu beigetragen, dass ich mich als Baum gefühlt habe | 0 = überhaupt nicht bis 10 = sehr stark |
Ich habe die Bandage wahrgenommen | ja/nein |
Falls ja, inwiefern stimmen Sie den folgenden Aussage zu? (0 = überhaupt nicht bis 10 = sehr stark). Während der VR Erfahrung hat die Bandage dazu beigetragen, dass ich mich als Baum gefühlt habe | 0 = überhaupt nicht bis 10 = sehr stark |
Ich habe die Gewichte wahrgenommen | ja/nein |
Falls ja, inwiefern stimmen Sie den folgenden Aussage zu? Während der VR Erfahrung haben die Gewichte dazu beigetragen, dass ich mich als Baum gefühlt habe | 0 = überhaupt nicht bis 10 = sehr stark |
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Spangenberger, P., Sanchez-Holguin, K., Freytag, SC. (2025). Scent Box: Prototyping and Instructions for Olfactory Enhancement of VR-Experiences. In: Krüger, J.M., et al. Immersive Learning Research Network. iLRN 2024. Communications in Computer and Information Science, vol 2271. Springer, Cham. https://doi.org/10.1007/978-3-031-80475-5_2
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