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Application of hedonic dynamics using multiple-sip temporal-liking and facial expression for evaluation of a new beverage

机译：享乐动力学的多饮酒时间喜好和面部表情在评估新饮料中的应用

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Drinking and eating are not a matter of a single sip or bite. Dynamic data gathered from multiple sip or bite, seem to be more reliable than simple sip/bite evaluation. However, methodologies and analyses based on multiple sips/bites have received little attention until recently. The present study tested an innovative approach to measure the temporal changes in acceptance. It combines multiple-sip temporal-liking measurements (MSTL) with implicit taste reactivity using facial pattern expressions at different time points, for evaluation of a new beverage. Seventy-three consumers (35 females and 38 males) evaluated acceptance during 60 s, drinking three sips, with each sip every 20 s. The consumers' faces were filmed by a camera during the test session in order to analyze facial affective reactions. The results of the present paper show that MSTL modality allows seeing temporal changes in the acceptance of the beverage. Parameters analyzed maximum intensity (I-max) and area under the curve (AUC) in self reported response curves presented variation through successive sips. The self-rated liking increased from the first sip to the third. In the same way facial expressions also showed a change over time during successive sips. In this case, the basic emotion of disgust, unpleasantness-related Action Units (AUs; AU 26 and AU 15) and negative valence showed a decrease from the first sip to the third one. It was observed that negative facial reactions are greater than the positive facial reactions in intensity. (C) 2016 Elsevier Ltd. All rights reserved.
机译：喝酒和饮食都不是一口气。从多个饮或咬伤中收集的动态数据似乎比简单的/饮/咬伤评估更可靠。但是，直到最近，基于多个小口/口的方法和分析一直很少受到关注。本研究测试了一种创新的方法来衡量接受度的时间变化。它使用不同时间点的面部表情表达，将多饮酒时间喜好测量（MSTL）与隐式味觉反应性相结合，以评估新饮料。 73位消费者（35位女性和38位男性）在60 s内评估了接受程度，喝了3口酒，每20 s喝了一次。在测试过程中，用相机拍摄了消费者的面部，以分析面部情感反应。本文的结果表明，MSTL模式可以看到饮料接受度的时间变化。自我报告的响应曲线中分析的最大强度（I-max）和曲线下面积（AUC）的参数显示了连续饮入的变化。自我评价的喜好从第一口增加到第三口。同样，面部表情在连续的also饮中也显示出随时间的变化。在这种情况下，厌恶，与不愉快相关的行动单位（AUs; au26和au15）和负价的基本情绪从第一次饮酒下降到第三次饮酒。观察到，负面面部反应的强度大于正面面部反应的强度。 （C）2016 Elsevier Ltd.保留所有权利。

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