Brianza, G; Tajadura-Jiménez, A; Maggioni, E; Pittera, D; Bianchi-Berthouze, N; Obrist, M; (2019) As Light as Your Scent: Effects of Smell and Sound on Body Image Perception. In: Lamas, D and Loizides, F and Nacke, L and Petrie, H and Winckler, M and Zaphiris, P, (eds.) Human-Computer Interaction – INTERACT 2019: 17th IFIP TC 13 International Conference, Paphos, Cyprus, September 2–6, 2019, Proceedings, Part IV. (pp. pp. 179-202). Springer: Cham, Switzerland.

Text INTERACT_As_Light_As_Your_Scent-finalpublished.pdf - Accepted version Access restricted to UCL open access staff until 24 September 2020. Download (3MB)

Abstract

How people mentally represent their body appearance (i.e., body image perception - BIP) does not always match their actual body. BIP distortions can lead to a detriment in physical and emotional health. Recent works in HCI have shown that technology can be used to change people’s BIP through visual, tactile, proprioceptive, and auditory stimulation. This paper investigates, for the first time, the effect of olfactory stimuli, by looking at a possible enhancement of a known auditory effect on BIP. We present two studies building on emerging knowledge in the field of crossmodal correspondences. First, we explored the correspondences between scents and body shapes. Then, we investigated the impact of combined scents and sounds on one’s own BIP. Our results show that scent stimuli can be used to make participants feel lighter or heavier (i.e., using lemon or vanilla) and to enhance the effect of sound on perceived body lightness. We discuss how these findings can inform future research and design directions to overcome body misperception and create novel augmented and embodied experiences.

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