Why Do Most Restrained Eaters Fail in Losing Weight?: Evidence from an fMRI Study

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ID: 275267
2019
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Abstract
Yanhua Su,1 Taiyong Bi,1 Gaolang Gong,2,3 Qiu Jiang,4,5 Hong Chen4,5 1Center for Mental Health Research in School of Management, Zunyi Medical University, Zunyi 563000, People’s Republic of China; 2State Key Laboratory of Cognitive Neuroscience and Learning, IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, People’s Republic of China; 3Beijing Key Laboratory of Brain Imaging and Connectomics, Beijing Normal University, Beijing, People’s Republic of China; 4Key Laboratory of Cognition and Personality (SWU), Ministry of Education, Chongqing 400715, People’s Republic of China; 5School of Psychology, Southwest University, Chongqing 400715, People’s Republic of ChinaCorrespondence: Hong ChenSchool of Psychology, Southwest University, Beibei, Chongqing 400715, People’s Republic of ChinaEmail chenhg@swu.edu.cnQiu JiangDepartment of Psychology, Southwest University, Chongqing 400715, People’s Republic of ChinaEmail qiuj318@swu.edu.cnBackground: Restraint dieting is a key step in the avoidance of obesity and other eating problems, but why some restraint eaters (REs) succeed and some fail in dieting is unknown. The difference between successful REs (S-REs) and unsuccessful REs (US-REs) is still unknown. This is the first study to compare the fMRI reactivity among US-REs, S-REs and unrestrained eaters (UREs) in a food-related Go/NoGo paradigm.Methods: Functional magnetic resonance imaging (fMRI) was used to examine the neural responses corresponding to the success of dieting in REs. Eighteen S-REs, 17 US-REs and 17 UREs were asked to perform a Go/No-Go task after being shown pictures of either high-caloric or low-caloric food.Results: fMRI results revealed stronger activations for high-caloric food in areas associated with executive function and inhibition (i.e., middle frontal gyrus and cerebellum) among S-REs than among US-REs. In contrast, both US-REs and UREs showed stronger activations for low-caloric food in reward areas (i.e., orbitofrontal cortex (OFC)) than S-REs.Conclusion: Our results provide evidence that food temptations may trigger processes of successful inhibition control in S-REs, whereas US-REs may fail in resisting the attraction to high-caloric food, thereby showing a high probability of overeating.Keywords: successful and unsuccessful restrained eaters, measurement of restrained eating, inhibition control, fMRI
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y2019whypsychology Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Y, Su;T, Bi;G, Gong;Q, Jiang;H, Chen;
Journal Psychology research and behavior management
Year 2019
DOI
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URL
https://www.dovepress.com/why-do-most-restrained-eaters-fail-in-losing-weight-evidence-from-an-f-peer-reviewed-article-PRBM
Keywords
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