Television watching increases motivated responding for food and energy intake in children
Television watching increases motivated responding for food and energy intake in children
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DOI：
10.1093/ajcn/85.2.355
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发表时间：
2007-02-01
影响因子：
7.1
通讯作者：
Epstein, Leonard H.
中科院分区：
文献类型：
--
作者：
Temple, Jennifer L.;Giacomelli, April M.;Epstein, Leonard H.
背景资料：久坐不动的活动，如看电视，可能会破坏习惯的食物线索，从而增加吃的动机和能量intake.Objective：这些实验的目的是检查的效果看电视习惯的摄食行为在children.Design：在实验1中，所有的儿童工作的访问奶酪汉堡在试验1-7（习惯性刺激）。在试验8 - 10中，对照组的儿童继续为奶酪汉堡工作，没有任何令人厌恶的刺激，而其他组的儿童则接受了一种新的食物（炸薯条）或电视作为令人厌恶的刺激。测量对食物的反应和进食量。在实验2中，所有儿童都可以获得1000千卡的首选零食。一组观看连续的电视节目，而对照组要么不看电视，要么观看电视节目的重复片段，这控制了电视刺激，但需要减少注意力的分配。在实验1中，新食物组和看电视组都恢复了对食物的反应（P = 0.009），并增加了能量的收入（P = 0.018）高于对照组的水平。实验2中，连续看电视组比不看电视组和重复看电视组进食时间长（P < 0.0001），能量消耗多（P <0.007）。结论：本实验表明，看电视可使进食不习惯或破坏习惯的发展，这可能是看电视增加能量摄入的机制之一。
Background: Sedentary activities, such as watching television, may disrupt habituation to food cues, thereby increasing motivation to eat and energy intake.Objective: These experiments were designed to examine the effect of television watching on habituation of ingestive behavior in children.Design: In experiment 1, all children worked for access to cheeseburgers in trials 1-7 (habituating stimulus). In trials 8 -10, children in the control group continued to work for cheeseburgers without any dishabituating stimuli, whereas children in the other groups received either a novel food (French fries) or television as dishabituating stimuli. Responding for food and amount of food eaten were measured. In experiment 2, all children had access to 1000 kcal of a preferred snack food. One group watched a continuous television show, and the control groups either watched no television or watched a repeated segment of a television show, which controls for the television stimulus but requires reduced allocation of attention.Results: In experiment 1, both the novel food and the television watching groups reinstated responding for food (P = 0.009) and increased the amount of energy earned (P = 0.018) above the level of the control subjects. In experiment 2, the continuous television group spent more time eating (P < 0.0001) and consumed more energy than the no television and the repeated segment groups (P 0.007).Conclusion: These experiments show that television watching can dishabituate eating or disrupt the development of habituation, which may provide a mechanism for increased energy intake associated with watching television.