A human voice, but not human visual image makes people perceive food to taste better and to eat more: “Social” facilitation of eating in a digital media
A human voice, but not human visual image makes people perceive food to taste better and to eat more: “Social” facilitation of eating in a digital media
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人类的声音，而不是人类的视觉图像，可以让人们感觉食物味道更好，吃得更多：数字媒体中饮食的“社交”便利化
作者：
Kawai;N.;Guo;Z.;& Naktata;R.
与单独吃饭相比，与他人一起吃饭的食物味道更好，人们吃得更多。虽然先前的研究表明，看电视有助于饮食，但有关视频内容的影响因素尚不清楚。在实验1中，我们比较了一个人说话的视频与只有物体（食物和手机）的视频，以及实验2中四人一组的视频。这些视频中有一半呈现人类的声音（包括仅对象的视频），而另一半则没有音频。结果显示，在实验1中，参与者认为爆米花的味道更好，并且在听别人说话时独自进食时消耗更多，无论该人是否存在于视频中。在实验2中发现了类似的结果，无论视频中说话的人数增加。在实验3中，我们评估了人类的声音在多大程度上有助于增加食物的摄入量和食物的感知味道的正弦波语音（SWS）替代实验1中使用的人类的声音，发现感知的食物的味道和食物的摄入量没有促进参与者观看视频与SWS。本研究表明，当人们在看电视时独自吃饭时，人声对食物的味道和消费量的感知起着至关重要的作用。建议，以提高食物的享受时，单独用餐进行了讨论。
Food tastes better and people eat more when eating with others compared to eating alone. Although previous research has shown that watching television facilitates eating, the influencing factors regarding video content are unclear. We compared videos of a person speaking with those of only objects (food and a cell phone) in Experiment 1, and videos of groups of four people talking in Experiment 2. Half of these videos presented human voices (including the objects-only video), while the other half had no audio. Results showed participants rated the popcorn as tasting better and consumed more when eating alone while listening to someone talking, irrespective of whether the person was present or absent in the video in Experiment 1. A similar result was found in Experiment 2, irrespective of the increased number of people talking in the video. In Experiment 3, we assessed to what extent human voices contributed to an increase in food intake and the perceived taste of food by substituting sine-wave speech (SWS) for human voices used in Experiment 1 and found that the perceived taste of food and food intake were not facilitated when participants watched videos with SWS. The present study indicates that the human voice plays a crucial role in the perceived taste of food and consumption amount when people eat alone while watching television. Suggestions to improve food enjoyment when dining alone are discussed.