Alcohol's Acute Effect on Food Intake Is Mediated by Inhibitory Control Impairments
Alcohol's Acute Effect on Food Intake Is Mediated by Inhibitory Control Impairments
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DOI：
10.1037/hea0000320
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发表时间：
2016-05-01
影响因子：
4.2
通讯作者：
Hardman, Charlotte A.
中科院分区：
文献类型：
--
作者：
Christiansen, Paul;Rose, Abigail;Hardman, Charlotte A.
目的：酒精滥用与超重之间有很强的相关性。虽然酒精热量很高，可能直接导致体重增加，但它也可能对体重产生间接影响。事实上，在实验性的味觉测试中，人们已经发现酒精质数可以刺激食欲，增加能量摄入。目前的研究调查了酒精对能量摄入的影响是否是抑制性控制损害的结果，以及这种影响是否被饮食限制的个体差异所缓和。方法：对60名大学生女性进行饮食限制问卷和食物渴求状态问卷(FCQS)的测试。在此之后，他们被给予优质酒精(每公斤体重0.6克酒精)或一种经过操纵以闻到和尝到酒精的安慰剂饮料。然后，参与者完成了另一个FCQS和一个颜色冲突Stroop来测量抑制性控制。最后，参与者被要求品尝饼干15分钟。结果：酒精条件下的参与者在Stroop上的表现(d=.61)比安慰剂条件下的参与者更差(d=.61)，并且摄入了更多的饼干卡路里(d=.61)。值得注意的是，实验条件对饼干消耗量的影响受Stroop性能的影响(K-2=0.08)，尽管这种影响在高水平的约束下并不明显。实验条件对渴求的任何维度都没有影响。结论：目前的研究表明，饮酒后能量摄入增加可能是抑制性控制损害的产物。然而，最有节制的进食者能够控制自己的饮食行为。
Objective: There is a strong association between alcohol misuse and excess weight. Although alcohol is highly calorific and may directly contribute to weight gain, it is also likely to have indirect effects on weight. Indeed, alcohol primes have been found to stimulate appetite and increase energy intake in experimental taste tests. The current study investigated whether the effects of alcohol on energy intake are the result of inhibitory control impairments and whether this effect is moderated by individual differences in dietary restraint. Method: Sixty undergraduate females completed measures of dietary restraint and the Food Craving Questionnaire-State (FCQS). Following this, they were given an alcohol prime (0.6 g of alcohol per kg of body weight) or a placebo drink manipulated to smell and taste alcoholic. Participants then completed another FCQS and a color conflict Stroop to measure inhibitory control. Finally, participants were asked to taste cookies for 15 minutes. Results: Participants in the alcohol condition performed worse on the Stroop (d = .61) and consumed more cookie calories (d = .61) than participants in the placebo condition. Notably, the effect of the experimental condition on the amount of cookies consumed was mediated by Stroop performance (K-2 = .08), although this effect was not evident under high levels of restraint. There was no effect of experimental condition on any subscale of craving. Conclusions: The current study suggests that increased energy intake after alcohol administration may be the product of inhibitory control impairments. However, the most restrained eaters are able to maintain control over their eating behavior.