It's Not Just Lunch: Extra-Pair Commensality Can Trigger Sexual Jealousy

作者:Kniffin Kevin M*; Wansink Brian
来源:PLos One, 2012, 7(7): e40445.
DOI:10.1371/journal.pone.0040445

摘要

Do people believe that sharing food might involve sharing more than just food? To investigate this, participants were asked to rate how jealous they (Study 1) - or their best friend (Study 2) - would be if their current romantic partner were contacted by an ex-romantic partner and subsequently engaged in an array of food- and drink-based activities. We consistently find - across both men and women - that meals elicit more jealousy than face-to-face interactions that do not involve eating, such as having coffee. These findings suggest that people generally presume that sharing a meal enhances cooperation. In the context of romantic pairs, we find that participants are attuned to relationship risks that extra-pair commensality can present. For romantic partners left out of a meal, we find a common view that lunch, for example, is not "just lunch."

  • 出版日期2012-7-11