De Dreu Carsten K W, Greer Lindred L, Handgraaf Michel J J, Shalvi Shaul, Van Kleef Gerben A
Department of Psychology, University of Amsterdam, Amsterdam, The Netherlands.
Proc Biol Sci. 2012 Mar 22;279(1731):1150-4. doi: 10.1098/rspb.2011.1444. Epub 2011 Sep 14.
In intergroup competition and conflict, humans benefit from coalitions with strong partners who help them to protect their in-group and prevail over competing out-groups. Here, we link oxytocin, a neuropeptide produced in the hypothalamus, to ally selection in intergroup competition. In a double-blind placebo-controlled experiment, males self-administered oxytocin or placebo, and made selection decisions about six high-threat and six low-threat targets as potential allies in intergroup competition. Males given oxytocin rather than placebo viewed high-threat targets as more useful allies and more frequently selected them into their team than low-threat targets.
在群体间竞争与冲突中，人类受益于与强大伙伴结成的联盟，这些伙伴帮助他们保护自己的内群体并战胜竞争的外群体。在此，我们将下丘脑产生的一种神经肽——催产素，与群体间竞争中的盟友选择联系起来。在一项双盲安慰剂对照实验中，男性自行注射催产素或安慰剂，并就六个高威胁和六个低威胁目标做出选择决定，这些目标是群体间竞争中潜在的盟友。注射催产素而非安慰剂的男性认为高威胁目标是更有用的盟友，并且比低威胁目标更频繁地将它们选入自己的团队。
