The role of neural impulse control mechanisms for dietary success in obesity

The role of neural impulse control mechanisms for dietary success in obesity
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神经冲动控制机制对肥胖饮食成功的作用

DOI:
10.1016/j.neuroimage.2013.07.028
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发表时间:
2013
期刊:
影响因子:
5.7
通讯作者:
Haynes JD
Haynes JD
中科院分区:
医学1区
文献类型:
--
作者:
Weygandt M;Dommes E;Leupelt V;Hackmack K;Kahnt T;Rothemund Y;Spranger J;Haynes JD

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冲动控制缺陷被认为是毒瘾和肥胖等全球主要健康问题的关键机制。例如,肥胖受试者在面对食物时难以控制暴饮暴食的冲动。在这里,我们研究了神经冲动控制机制对中年肥胖受试者饮食成功的作用。具体来说,我们使用特定食物的延迟满足范式和功能性磁共振成像来测量中年肥胖受试者在接受为期十二周的低热量饮食之前与饮食相关的冲动控制。正如预期的那样,我们发现行为冲动控制能力较高的受试者随后体重减轻更多。此外,节食前 VMPFC 和 DLPFC 中的大脑活动与随后的体重减轻相关。此外,连通性分析显示,这些区域之间更强的功能连通性与更好的饮食成功和冲动控制有关。因此,受试者控制饮食冲动的程度可能取决于控制区域(DLPFC)和食物奖励信号区域(VMPFC)之间的相互作用。这可能构成一种通用机制,也可以扩展到其他疾病,例如毒瘾或酗酒。
Deficits in impulse control are discussed as key mechanisms for major worldwide health problems such as drug addiction and obesity. For example, obese subjects have difficulty controlling their impulses to overeat when faced with food items. Here, we investigated the role of neural impulse control mechanisms for dietary success in middle-aged obese subjects. Specifically, we used a food-specific delayed gratification paradigm and functional magnetic resonance imaging to measure eating-related impulse-control in middle-aged obese subjects just before they underwent a twelve-week low calorie diet. As expected, we found that subjects with higher behavioral impulse control subsequently lost more weight. Furthermore, brain activity before the diet in VMPFC and DLPFC correlates with subsequent weight loss. Additionally, a connectivity analysis revealed that stronger functional connectivity between these regions is associated with better dietary success and impulse control. Thus, the degree to which subjects can control their eating impulses might depend on the interplay between control regions (DLPFC) and regions signaling the reward of food (VMPFC). This could potentially constitute a general mechanism that also extends to other disorders such as drug addiction or alcohol abuse.
DOI: 10.1901/jeab.2002.77-129
发表时间: 2002-03-01
影响因子: 2.7
作者:
Johnson, MW;Bickel, WK
通讯作者: Bickel, WK
DOI: 10.1073/pnas.0912838107
发表时间: 2010-03-30
影响因子: 11.1
作者:
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发表时间: 2004-12-01
期刊: OBESITY RESEARCH
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发表时间: 2000-08-01
期刊: ADDICTION
影响因子: 6
作者:
Drummond, DC
通讯作者: Drummond, DC
肥胖的心理特征。
DOI: --
发表时间: 1989
期刊: The Medical clinics of North America
影响因子: --
作者:
J. Rodin;D. Schank;R. Striegel
通讯作者: R. Striegel