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进食抑制与对有价值食物奖励信号的注意力捕获减少有关。

Eating restraint is associated with reduced attentional capture by signals of valuable food reward.

机构信息

School of Psychology, UNSW, Sydney, Australia.

School of Psychology, UNSW, Sydney, Australia.

出版信息

Appetite. 2021 Apr 1;159:105050. doi: 10.1016/j.appet.2020.105050. Epub 2020 Nov 27.

Abstract

Previous paradigms used to examine attentional distraction by task-irrelevant food words and food images were not suited for the investigation of involuntary and automatic attentional capture. In the current experiments we adapted a well-established visual-search paradigm (with eye tracking) to investigate involuntary attentional capture by food and drink rewards. We first used a satiety procedure to manipulate relative preference for different food and drink outcomes (potato chips and water in Experiment 1 and popcorn and chocolate Smarties in Experiment 2). Participants then performed the visual-search task where a coloured distractor signalled on each trial which of the two food and drink rewards was available for successful identification of the target. The signalled reward was cancelled, however, if any eye gaze was registered on the distractor. Participants were therefore motivated to try and control the automatic orienting of attention towards cues signalling valuable outcomes, in order to earn those outcomes. In both experiments we found that attention was more often captured by the distractor signalling the valuable (non-sated) outcome, replicating previous studies using this paradigm with monetary rewards. We also found that those scoring high on eating restraint (as measured with the Dutch Eating Behavior Questionnaire) were better at controlling reflexive orienting of attention to desirable food rewards. This paradigm offers a novel approach for understanding how reflexive attention and control relate to conflicts in everyday life around distracting food cues, and the moderating role of dietary restraint.

摘要

先前用于检查与任务不相关的食物单词和食物图像引起注意力分散的范式并不适合研究无意识和自动注意力捕获。在当前的实验中,我们改编了一种成熟的视觉搜索范式(带有眼动追踪),以研究食物和饮料奖励引起的无意识注意力捕获。我们首先使用饱腹感程序来操纵对不同食物和饮料结果的相对偏好(实验 1 中的薯片和水,实验 2 中的爆米花和巧克力 Smarties)。然后,参与者执行视觉搜索任务,其中彩色干扰物在每次试验中指示两个食物和饮料奖励中的哪一个可用于成功识别目标。然而,如果有任何眼动注视在干扰物上,信号奖励将被取消。因此,参与者有动机尝试控制对提示有价值结果的自动注意定向,以获得这些结果。在这两个实验中,我们发现注意力更经常被信号有价值(未满足)结果的干扰物捕获,这与使用该范式进行货币奖励的先前研究结果一致。我们还发现,那些在饮食行为问卷中得分较高的人(衡量饮食行为的问卷)在控制对理想食物奖励的反射性注意定向方面表现更好。这种范式提供了一种新颖的方法来理解反射性注意力和控制如何与日常生活中分散注意力的食物线索相冲突,以及饮食克制的调节作用。

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