Department of Psychology, Oakland University, 130 Pryale Hall, Rochester, MI, 48309, USA,
Hum Nat. 2013 Dec;24(4):476-85. doi: 10.1007/s12110-013-9181-0.
Men who spend a greater proportion of time apart from their female partner since the couple's last copulation are at greater "objective" sperm competition risk. We propose a novel cue to sperm competition risk: the time she spends with her male friends. Four hundred and twenty men in a committed, heterosexual, sexual relationship completed a questionnaire. The results indicate that men at greater objective sperm competition risk report less time desired until the couple's next copulation, greater interest in copulating with their partner, and greater anger, frustration, and upset in response to their partner's sexual rejection, but only among men whose partner spends more time with her male friends. These results remain after controlling statistically for the participant's age and their partner's age. We discuss limitations of the current research, and discuss how research in human sperm competition can inform social issues, including men's partner-directed sexual coercion.
男性与伴侣上次性行为后,如果与伴侣分开的时间比例越大,那么他们就处于更大的“客观”精子竞争风险中。我们提出了一个新的精子竞争风险线索:她与男性朋友在一起的时间。420 名处于稳定、异性恋、性关系中的男性完成了一份问卷。结果表明,处于更大客观精子竞争风险中的男性报告说,他们希望伴侣下一次性行为的时间更少,对与伴侣发生性关系的兴趣更大,并且对伴侣的性拒绝反应更愤怒、沮丧和不安,但这种情况仅发生在伴侣与男性朋友在一起时间较多的男性中。在统计控制参与者的年龄和他们伴侣的年龄后,这些结果仍然成立。我们讨论了当前研究的局限性,并讨论了人类精子竞争研究如何为包括男性伴侣导向的性胁迫在内的社会问题提供信息。