Abstract Thomas, van der Stelt, Prokop, Lawlor, and Schlich (2016) recently introduced the Alternated Temporal Drivers of Liking (A-TDL) method in which consumers did both Temporal Dominance of Sensations (TDS) and dynamic liking evaluations on a full portion of two oral nutritional supplements (ONS) in the same session. This new study reports further development of this research in which TDS and dynamic liking were still paired at the lab, but were conducted twice a day (morning and afternoon sessions) for each product. In addition, hunger and thirst status were monitored at the lab along the successive sips and also before and after lunch and dinner at home. The objective was to reproduce the full daily experience of an ONS. A total of 62 French older adults tested the two products over two days, a week apart (a single product per day). Ten small glasses of the product were given to each participant in both morning and afternoon sessions; each one was consumed in a single sip. The protocol consisted of a TDS evaluation during each sip, followed by liking-thirst-hunger scales appearing successively. This protocol was repeated over the ten glasses. Before and after lunch and dinner, thirst and hunger status were recorded online at home. Participants seemed to be able to perform these rather sophisticated tasks quite well. Their use of the hunger scale was quite narrow and ONS consumed at the lab reduced hunger very moderately, at least compared to a regular meal being taken at home. Both products increased thirst by an average of 2 scale points along the ten sips, confirming that drinking an ONS increased thirst during tasting. Interestingly, no difference in liking was observed in the first sip, but one of the two products was slightly more appreciated on average over multiple sips. Temporal drivers of liking of this preferred product may be due to longer lasting praline and coffee-milk flavours and shorter metallic flavor and dry sensations.

中文翻译：

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通过监测饥饿和口渴状态，全天喜欢老年人口服营养补充剂的时间驱动因素

摘要 Thomas、van der Stelt、Prokop、Lawlor 和 Schlich（2016 年）最近介绍了喜欢的交替时间驱动因素 (A-TDL) 方法，其中消费者对整个部分进行了时间支配性感觉 (TDS) 和动态喜欢评估在同一疗程中服用两种口服营养补充剂 (ONS)。这项新研究报告了这项研究的进一步发展，其中 TDS 和动态喜好仍然在实验室配对，但每天对每种产品进行两次（上午和下午的会议）。此外，饥饿和口渴状态在实验室连续小口以及在家中午餐和晚餐前后进行监测。目标是重现 ONS 的完整日常体验。共有 62 名法国老年人在相隔一周的两天内测试了这两种产品（每天一个产品）。在上午和下午的会议中，每位参与者都获得了十小杯该产品；每个人都喝了一口。该协议包括在每次啜饮期间进行 TDS 评估，然后依次出现喜欢-口渴-饥饿量表。该协议在十个眼镜上重复。在家中在线记录午餐和晚餐前后的口渴和饥饿状态。参与者似乎能够很好地完成这些相当复杂的任务。他们对饥饿量表的使用范围很窄，在实验室消耗的 ONS 非常温和地减少了饥饿，至少与在家吃的普通餐相比是这样。这两种产品在 10 口小口中平均增加了 2 个量表点的口渴感，这证实了在品尝过程中饮用 ONS 会增加口渴感。有趣的是，在第一口中没有观察到喜欢的差异，但平均而言，这两种产品中的一种比多次饮用时更受欢迎。喜欢这种首选产品的时间驱动因素可能是由于更持久的果仁糖和咖啡牛奶味以及更短的金属味和干燥感。