Stress and eating: the effects of ego-threat and cognitive demand on food intake in restrained and emotional eaters
Stress and eating: the effects of ego-threat and cognitive demand on food intake in restrained and emotional eaters
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DOI：
10.1016/j.appet.2004.02.001
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发表时间：
2004-08-01
期刊：
影响因子：
5.4
通讯作者：
Hetherington, MM
中科院分区：
文献类型：
--
作者：
Wallis, DJ;Hetherington, MM
克制和情绪化的进食者在压力下会吃得过多。为了比较认知需求和自我威胁压力源对随后巧克力摄入的不同影响，38名女性在三个不同的场合完成了一个中性（对照）、一个自我威胁和一个不一致的Stroop颜色命名任务。参与者根据荷兰饮食行为调查问卷中克制饮食和情绪化饮食的中位数分值被分为四组：高克制/高情绪、高克制/低情绪、低克制/高情绪和低克制/低情绪。在不一致任务中观察到更高的反应潜伏期，证实了其更大的认知（注意）需求。与对照组相比，自我威胁组的总摄入量增加了23%，不一致Stroop任务组的总摄入量增加了15%。在自我威胁和不一致任务后，克制与更多的摄入有关。相比之下，情绪性进食与自我威胁后摄入的更多食物有关。在所有条件下，高克制/低情绪进食者的反应时间与随后的摄入量之间的正相关为能力有限假说提供了支持。情绪化进食者的摄入量增加被认为与逃避自我意识有关。这些发现表明，在克制型和情绪化进食者中，威胁和要求对压力相关进食的影响是不同的。(C) 2004 Elsevier Ltd.版权所有。
Restrained and emotional eaters overeat in response to stress. To compare differential effects of cognitive demand and ego-threatening stressors on subsequent chocolate intake, 38 females completed a neutral (control), an ego threatening and an incongruent Stroop colour-naming task on three separate occasions. Participants were assigned to four groups based on median-split scores on the restrained and emotional eating scales of the Dutch Eating Behaviour Questionnaire-high restraint/high emotional, high restraint/low emotional, low restraint/high emotional and low restraint/low emotional. Higher response latencies were observed in the incongruent task, confirming its greater cognitive (attentional) demand. Overall intake was enhanced by 23% after ego-threat and 15% after the incongruent Stroop task relative to control. Restraint was associated with greater intake after both ego-threat and the incongruent task than in the control condition. In contrast, emotional eating was associated with greater intake after only the ego-threat, relative to control. A positive association between reaction time and subsequent intake in all conditions for high restraint/low emotional eaters provided support for the limited capacity hypothesis. Enhanced intake in emotional eaters is proposed to relate to escape from self-awareness. These findings demonstrate differential effects of threat and demand on stress-related eating in restrained and emotional eaters. (C) 2004 Elsevier Ltd. All rights reserved.