Abstract

AbstractThe current food production system is unsustainable, necessitating a shift towards plant-based diets. Nutritious options fulfill basic needs but may not satisfy hedonic ones. Our novel approach is to promote healthier eating habits without compromising on the pleasantness of eating by using extended reality technologies and multimodal interaction. We present a multisensory augmentation system integrating augmentations in olfaction, touch, and vision. We studied the experience of eating plant-based balls and meatballs. In an experiment with 40 participants, haptic and visual augmentations were found to have significant effects: augmented meatballs and plant-based balls were perceived as bigger and heavier compared to non-augmented versions. However, olfactory augmentation did not produce a similar effect: participants did not notice a stronger aroma with augmented balls compared to non-augmented balls, and the augmented plant-based version had a less appealing scent than its non-augmented counterpart. Moreover, the findings of the study indicate that our multisensory augmentation system had no significant effect on taste perception.

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