Do impulsive individuals benefit more from food go/no-go training? Testing the role of inhibition capacity in the no-go devaluation effect
Do impulsive individuals benefit more from food go/no-go training? Testing the role of inhibition capacity in the no-go devaluation effect
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DOI：
10.1016/j.appet.2017.04.024
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发表时间：
2018-05-01
期刊：
影响因子：
5.4
通讯作者：
Holland, Rob W.
中科院分区：
文献类型：
--
作者：
Chen, Zhang;Veling, Harm;Holland, Rob W.
在去/不去任务中对食物没有反应会导致这些食物贬值，这可能有助于人们调节他们的饮食行为。行为刺激相互作用（BSI）理论解释了这种贬值效应，假设抑制由食欲食物引发的冲动会产生负面影响，从而使食物贬值。BSI理论进一步预测，当食物更有食欲和个体的抑制能力较低时，贬值效应会更强。为了验证这些假设，我们操纵的食欲的食物项目和测量个人的抑制能力与停止信号任务。食物总是与去或不去的线索配对，所以参与者对去的东西做出反应，而不是对不去的东西。在进行/不进行训练之前和之后对这些项目进行评估。在两个预先注册的实验中，我们一致发现，与训练中使用的食物和未使用的食物相比，训练后不喜欢的食物较少。出乎意料的是，这种贬值效应发生在食欲和食欲不佳的食品上。探索性信号检测分析表明，后者的发现可能是解释增加学习的刺激反应意外事件的食欲较低的项目时，他们之间的食欲项目。此外，贬值的强度并不总是与个人的抑制能力，贝叶斯分析结合两个实验的数据提供了适度的支持零假设。本研究证明了go/no-go训练所引起的贬值效应，但未能获得BSI理论的进一步证据。由于贬值效应是在实验中可靠地获得的，因此这些结果确实强化了这样一种观点，即去/不去训练是一种有前途的工具，可以帮助人们调节他们的饮食行为。(C)2017爱思唯尔有限公司版权所有
Not responding to food items in a go/no-go task can lead to devaluation of these food items, which may help people regulate their eating behavior. The Behavior Stimulus Interaction (BSI) theory explains this devaluation effect by assuming that inhibiting impulses triggered by appetitive foods elicits negative affect, which in turn devalues the food items. BSI theory further predicts that the devaluation effect will be stronger when food items are more appetitive and when individuals have low inhibition capacity. To test these hypotheses, we manipulated the appetitiveness of food items and measured individual inhibition capacity with the stop-signal task. Food items were consistently paired with either go or no-go cues, so that participants responded to go items and not to no-go items. Evaluations of these items were measured before and after go/no-go training. Across two preregistered experiments, we consistently found no-go foods were liked less after the training compared to both go foods and foods not used in the training. Unexpectedly, this devaluation effect occurred for both appetitive and less appetitive food items. Exploratory signal detection analyses suggest this latter finding might be explained by increased learning of stimulus-response contingencies for the less appetitive items when they are presented among appetitive items. Furthermore, the strength of devaluation did not consistently correlate with individual inhibition capacity, and Bayesian analyses combining data from both experiments provided moderate support for the null hypothesis. The current project demonstrated the devaluation effect induced by the go/no-go training, but failed to obtain further evidence for BSI theory. Since the devaluation effect was reliably obtained across experiments, the results do reinforce the notion that the go/no-go training is a promising tool to help people regulate their eating behavior. (C) 2017 Elsevier Ltd. All rights reserved.