Related Experiment Video
Updated: Nov 4, 2025

Studying Food Reward and Motivation in Humans
Published on: March 19, 2014
Watching a remote-video confederate eating facilitates perceived taste and consumption of food
Nobuyuki Kawai1, Zhuogen Guo2, Ryuzaburo Nakata2
1Department of Cognitive and Psychological Sciences, Nagoya University, JAPAN; Academy of Emerging Science, Chubu University, JAPAN.
Abstract:
People eat more when their eating confederates eat a lot. However, it was not clear whether participants' eating is changed by a remote-video confederate. We compared three types of silent videos: 1) a stranger eating potato chips, 2) the stranger calling on the phone, or 3) only objects (food and cellphone). Participants perceived popcorn to taste better only when they watched the video of others eating. Watching others eating induced the participants to eat more than when watching the other two videos. This study indicates that remote-video confederates enhance not only food intake but also the perceived taste of food.
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