Food-Related Attentional Bias in Individuals with Normal Weight and Overweight: A Study with a Flicker Task
Metadatos
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MDPI
Materia
Food-related attentional bias Normal weight Overweight Flicker task Change blindness
Fecha
2020-02-14Referencia bibliográfica
Favieri, F., Forte, G., Marotta, A., & Casagrande, M. (2020). Food-Related Attentional Bias in Individuals with Normal Weight and Overweight: A Study with a Flicker Task. Nutrients, 12(2), 492.
Resumen
The primary purpose of the present study was to investigate attentional biases for
food-related stimuli in individuals with overweight and normal weight using a flicker paradigm.
Specifically, it was tested whether attention allocation processes differ between individuals with
overweight and normal weight using transient changes of food-related and neutral pictures. Change
detection latencies in objects of central interest (CI) or objects of marginal interest (MI) were measured
as an index of attention allocation in a sample of fifty-three students with overweight/obesity and sixty
students with normal weight during a flicker paradigm with neutral, hypercaloric and hypocaloric
food pictures. Both groups of participants showed an attentional bias for food-related pictures
as compared to neutral pictures. However, the bias was larger in individuals with overweight
than in individuals with normal weight when changes were of marginal interest, suggesting a
stronger avoidance of the food-related picture. This study showed that food-related stimuli influence
attention allocation processes in both participants with overweight and normal weight. In particular,
as compared to individuals with normal weight, those with overweight seem to be characterised by
a stronger attentional avoidance of (or smaller attention maintenance on) food-related stimuli that
could be considered as a voluntary strategy to resist food consumption.