Researchers from RMIT University found that confined environments, like the International Space Station, alter people’s perception of food aromas. Using virtual reality to simulate space conditions, participants reported stronger smells for most aromas except lemongrass, compared to a microgravity posture.
In this study, 44 people’s emotional responses and perception of eight food aromas were tested in two environmental scenarios: sitting in reclined chairs that mimic astronauts’ posture in microgravity, and then in the confined setting of the International Space Station (ISS), simulated with virtual reality goggles. The team tested vanilla, almond, lemon, lemon myrtle, eucalyptus, peppermint, vinegar, and lemongrass.
The results show that most food aromas were perceived more intensely in the VR simulation compared to the microgravity posture, except for lemongrass. Positive emotions heightened aroma perception, while mild stress reduced it, suggesting emotional states influence taste experiences in isolation.
This research could help personalize diets for astronauts and isolated individuals, improving well-being in confined settings. The findings may guide tailored meal plans for astronauts on long missions, as well as nursing home residents living alone. Future studies will combine microgravity posture with VR experience to better simulate the astronaut experience and design food plans for longer missions.
The study’s lead authors emphasize the critical role of environment on taste and smell, highlighting its potential to explore variations in eating when stressed. This research opens possibilities for personalized meal planning and improving well-being in confined environments.
Source: https://neurosciencenews.com/confined-spaces-taste-olfaction-28072