The Effect of Food Images on Mood and Arousal Depends on Dietary Histories and the Fat and Sugar Content of Foods DepictedReportar como inadecuado




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Background: While brain imaging studies show that reward regions in the humanbrain that regulate reward-guided behavior and integrate sensory modalities ofsmell, taste, and texture respond preferentially to high calorie foods, fewstudies account for dietary histories or account for recent behavioral evidenceshowing preferential responding for fruits a low calorie food that tastes sweet.To address these concerns, the present study tested the hypothesis that imagesof high-low fat and sugar foods, even sugary foods that are low calorie i.e., fruits, will enhance emotionalresponsiveness and that these changes may be related to dietary histories withfat and sugar intake. Method: Participantswere shown 4 sets of 15 food images with each food image automatically timedevery 9 s to transition to a new food image; participant pre-post moodand arousal was measured. The 4 sets of food images were high fat-high sugarHFHS; desserts, high fat-low sugar HFLS; fried foods, low fat-high sugarLFHS; fruits, or low fat-low sugar LFLS; vegetables foods. To account fordietary histories, participants also completed estimated daily intake scalesEDIS for sugar and fat. Results: Mood and arousal significantly increased in all groups, except Group LFLS, andeven in a group that was low calorie but shown foods that taste sweet, i.e., Group LFHS. Interestingly, changesin arousal, but not mood, were dependent on participant histories with sugarand fat intake. Conclusion: Changesin emotional responsiveness to food images were nutrient-specific, which can bea more detailed level of analysis for assessing responsiveness to food images. Also,participant histories with sugar and fat should be taken into account as thesehistories can explain the changes in arousal observed here.

KEYWORDS

Fat; Sugar; Mood; Arousal; Dietary History

Cite this paper

G. Privitera, D. Antonelli and H. Creary -The Effect of Food Images on Mood and Arousal Depends on Dietary Histories and the Fat and Sugar Content of Foods Depicted,- Journal of Behavioral and Brain Science, Vol. 3 No. 1, 2013, pp. 1-6. doi: 10.4236-jbbs.2013.31001.





Autor: Gregory J. Privitera, Danielle E. Antonelli, Heather E. Creary

Fuente: http://www.scirp.org/



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