Title |
It’s Not Just Lunch: Extra-Pair Commensality Can Trigger Sexual Jealousy
|
---|---|
Published in |
PLOS ONE, July 2012
|
DOI | 10.1371/journal.pone.0040445 |
Pubmed ID | |
Authors |
Kevin M. Kniffin, Brian Wansink |
Abstract |
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." |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 16 | 33% |
Canada | 2 | 4% |
United Kingdom | 2 | 4% |
El Salvador | 1 | 2% |
South Africa | 1 | 2% |
Malaysia | 1 | 2% |
Indonesia | 1 | 2% |
Argentina | 1 | 2% |
Mexico | 1 | 2% |
Other | 2 | 4% |
Unknown | 20 | 42% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 35 | 73% |
Scientists | 7 | 15% |
Science communicators (journalists, bloggers, editors) | 4 | 8% |
Practitioners (doctors, other healthcare professionals) | 2 | 4% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 1 | 2% |
United States | 1 | 2% |
Singapore | 1 | 2% |
Luxembourg | 1 | 2% |
Unknown | 50 | 93% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Bachelor | 11 | 20% |
Student > Ph. D. Student | 8 | 15% |
Student > Master | 8 | 15% |
Researcher | 6 | 11% |
Other | 6 | 11% |
Other | 7 | 13% |
Unknown | 8 | 15% |
Readers by discipline | Count | As % |
---|---|---|
Psychology | 14 | 26% |
Agricultural and Biological Sciences | 8 | 15% |
Social Sciences | 5 | 9% |
Computer Science | 3 | 6% |
Business, Management and Accounting | 2 | 4% |
Other | 10 | 19% |
Unknown | 12 | 22% |