How to nudge students toward healthier snacks? Consumer neuroscience insights on multisensory nudge interventions in university vending machines
Chiara Casiraghi, Simone Chiarelli, Giuseppina Gifuni, Alessandro Fici, Marco Bilucaglia, Alessandra Cecilia Jacomuzzi, Valeria Micheletto, Margherita Zito, Vincenzo Russo
TL;DR
This study explores how visual and smell-based nudges in vending machines can encourage students to choose healthier snacks, using neuroscience to understand their emotional and cognitive responses.
Contribution
The study introduces a consumer neuroscience approach to evaluate multisensory nudges in vending machines, revealing how emotional and attentional responses influence healthier snack choices.
Findings
Visual and olfactory nudges individually increased the likelihood of healthier snack choices.
Combined visual and olfactory nudges reduced motivational approach toward snacks.
Eye-level placement of healthy snacks increased attention, but nudge conditions also influenced this.
Abstract
Nudge has proven effective in promoting healthier eating, especially in academic environments. However, its application in vending machines has not been extensively studied yet, with existing studies focusing on choice and overlooking the emotional and cognitive responses to these interventions. Our research explored how visual and olfactory nudges (and a combination of both) can encourage healthier choices in university vending machines, and examined the related emotional and cognitive reactions, adopting a consumer neuroscience approach. It encompassed three distinct analysis levels: behavioral (snack choice), neurophysiological (emotional and cognitive reactions assessed through skin conductance and electroencephalography), and attentional (visual attention on snacks evaluated via eye-tracking). The findings revealed that while visual and olfactory nudges, when considered…
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Taxonomy
TopicsOlfactory and Sensory Function Studies · Color perception and design · Multisensory perception and integration