Impact of eating habits on neurocognitive processes and decision making during food choice tests in normal-weight young adults: A fMRI pilot study - Université de Rennes Accéder directement au contenu
Communication Dans Un Congrès Année : 2017

Impact of eating habits on neurocognitive processes and decision making during food choice tests in normal-weight young adults: A fMRI pilot study

Résumé

Introduction: Overweight and obesity are a global epidemic that affects 35% of adults in 2014 (WHO). It also affects 15% of the French population (OBEPI survey 2012). However, treatment is at risk for failure if it does not take into account the psychobehavioural factors involved in food intake. However, we do not yet know the extent to which chronic consumption of palatable foods, independently of weight gain and ED, can condition the emergence of neuronal plasticity. Issue: The aim of the study is to determine the impact of dietary habits on brain responses to food visual stimuli in normal-weight adults with contrasting eating habits, using fRMI imaging and cognitive test based on a food choice. Materials and methods: We constructed a database of food images. This protocol compared low-risk consumers (LRc, N=8) to high-risk consumers (HRc, N=8) in terms of eating habits (FFQ). Both groups were based on a validated food consumption frequency questionnaire (FCFQ). The volunteers then evaluated the energy density and the hedonic value of the food (Liking), using visual analogic scales (VAS). Finally, the volunteers participated in a cognitive test in fMRI (Wanting task). Results: From the FCFQ, we showed that meat and pork products were the most discriminating foods to highlight risky food behaviors. Based on the consumption of these foods, we established two distinct groups: low-risk consumers (LRc, N=9), versus high consumer (HRc, N=7). In fMRI (Wanting), the HRc group selected more the rich food items than the LRc group. In a preliminary fRMI analysis showed that cerebral responses were more important in SL compare to LD on the overall population in zones involved in internal conflict, vision, and reward anticipation. Conclusion: The results are still being analyzed and thus do not allow us to draw any conclusions from this study. However, this pilot study will have confirmed the method for the larger scale study.
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Dates et versions

hal-02865329 , version 1 (24-06-2020)

Identifiants

  • HAL Id : hal-02865329 , version 1

Citer

Y. Gautier, O Petitgas, N. Coquery, P. Meurice, E Banier, et al.. Impact of eating habits on neurocognitive processes and decision making during food choice tests in normal-weight young adults: A fMRI pilot study. International Conference on Obesity and Chronic Diseases (ICOCD 2017), Jul 2017, San Francisco, United States. ⟨hal-02865329⟩
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