Attention! Can choices for low value food over high value food be trained?
Attention! Can choices for low value food over high value food be trained?
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DOI：
10.1016/j.appet.2017.06.010
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发表时间：
2017
期刊：
影响因子：
5.4
通讯作者：
R. Holland
中科院分区：
文献类型：
--
作者：
Michael Zoltak;H. Veling;Zhang Chen;R. Holland
人们选择高价值的食物而不是低价值的食物，因为食物的选择是通过对选择替代方案的价值进行比较来指导的。这种价值比较过程也受到人们对不同项目的关注程度的影响。最近的研究表明，通过训练对食物的注意力，可以增加对这些食物的选择，一种被称为线索-方法训练(CAT)的范式。然而，到目前为止，已有的研究只考察了CAT对两个等值物品选择的影响。目前还不清楚，当人们在低价值和高价值食物之间进行选择时，CAT是否会增加低价值食物的选择。为了解决这个问题，在当前的研究中，参与者被提示在CAT中对某些低价值和高价值项目做出快速反应。接下来，他们在低价值项目和高价值项目之间做出二元选择，我们系统地改变低价值项目和高价值项目是否被提示或不提示。在两个实验中，我们发现参与者总体上更喜欢高价值的食物而不是低价值的食物来真正消费。更重要的是，当在CAT中只提示低价值项目时，他们对低价值项目的选择比没有提示低价值项目和高价值项目时增加。探索性分析显示，对于低价值和高价值项目之间价值差异相对较小的参与者来说，这种影响更加明显。因此，本研究表明，只要价值差异不是太大，CAT可以通过加强对低价值物品的关注来促进这些物品的选择和消费。讨论了促进健康食品选择的意义。
People choose high value food items over low value food items, because food choices are guided by the comparison of values placed upon choice alternatives. This value comparison process is also influenced by the amount of attention people allocate to different items. Recent research shows that choices for food items can be increased by training attention toward these items, with a paradigm named cued-approach training (CAT). However, previous work till now has only examined the influence of CAT on choices between two equally valued items. It has remained unclear whether CAT can increase choices for low value items when people choose between a low and high value food item. To address this question in the current study participants were cued to make rapid responses in CAT to certain low and high value items. Next, they made binary choices between low and high value items, where we systematically varied whether the low and high value items were cued or uncued. In two experiments, we found that participants overall preferred high over low value food items for real consumption. More important, their choices for low value items increased when only the low value item had been cued in CAT compared to when both low and high value items had not been cued. Exploratory analyses revealed that this effect was more pronounced for participants with a relatively small value difference between low and high value items. The present research thus suggests that CAT may be used to boost the choice and consumption of low value items via enhanced attention toward these items, as long as the value difference is not too large. Implications for facilitating choices for healthy food are discussed.
影响因子：
25
作者：
Shimojo, S;Simion, C;Scheier, C
通讯作者：
Scheier, C