Food Catches the Eye: How Body Mass Index Affects Attention to Food
Author Information
Author(s): Lauri Nummenmaa, Jari K. Hietanen, Manuel G. Calvo, Jukka Hyönä
Primary Institution: Aalto University School of Science, Espoo, Finland
Hypothesis
Is the detection and selection of food targets modulated by individuals' energy consumption, as indexed by body mass?
Conclusion
The study found that individuals with lower BMI detected food items faster among nonfood items, indicating a bias in visual attention towards food.
Supporting Evidence
- Detection times were faster for food items compared to nonfood items.
- Lower BMI was associated with a greater detection advantage for food.
- Eye tracking showed that individuals with low BMI had a rapid eye capture by food items.
Takeaway
People who weigh less are better at spotting food in a crowd of other things, while those who weigh more have a harder time noticing food.
Methodology
Participants completed two visual search experiments where they looked for food items among nonfood items and their response times were measured.
Potential Biases
The study's findings may not apply to individuals with eating disorders, who may show different attentional biases.
Limitations
The study only used a narrow range of BMI scores from healthy university students, limiting generalizability to other populations.
Participant Demographics
Twenty-seven healthy university students (4 males) with a mean age of 25.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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