It’s a common piece of advice not to go grocery shopping on an empty stomach. New research from the University of Otago and Ōtākou Whakaihu Waka might offer a potential explanation for this, demonstrating how our perception of food shifts based on whether we’re hungry or full. This change isn’t just about our desire to eat, but also about the vividness with which we can imagine it.
Research conducted by Maggie HaMES revealed that imagining food is simpler, quicker, and more vivid when individuals are hungry. This insight could shed light on food cravings and eating habits.
Co-author May Peng, from the University of Otago’s sensory neuroscience and nutrition laboratory, stated that this finding confirms our thoughts about food aren’t random or purely psychological; they are deeply connected to our physical state.
“When the body is in certain states, such as hunger, the imagined sensory experience of food can become more intense and pleasurable, making food seem exceptionally appealing,” she explained. “This has implications for understanding food preferences, dieting behaviors, and healthy eating guidelines in our daily lives.”
According to Peng, succumbing to food cravings can significantly increase energy intake. Therefore, comprehending the interplay between our brain and body during these moments could empower us to better manage our eating patterns.
The study, with findings published in the journal Appetite, involved approximately 60 participants.
Participants in the experiment were asked to visualize the smell, taste, and texture of food both when hungry and when satiated. The goal was to determine if these imagined sensory experiences varied depending on metabolic state.
“It might seem obvious that thoughts about food intensify when we’re hungry, but this study put that idea to the test experimentally,” the authors noted.
Peng was surprised to find that participants found it easier to imagine the texture of food than its taste.
“We often consider taste to be the central element of food reward, but our results suggest that texture might be particularly accessible for mental imagery,” she commented. “While hunger did alter taste perception, it didn’t affect texture perception to the same degree.”
“This difference is scientifically interesting because it suggests that various sensory aspects of food might be represented differently in our minds and play distinct roles in appetite, cravings, and food-related decision-making,” the study’s authors concluded.
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