期刊
EVOLUTION AND HUMAN BEHAVIOR
卷 38, 期 3, 页码 283-292出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.evolhumbehav.2016.10.006
关键词
Extended sexuality; Hormonal contraception; Sociosexuality; Luteal phase
资金
- National Science Foundation [DGE-1418062]
Women's mating adaptations may vary between fertile and luteal phases, given different costs and benefits of sexual activity during each phase. Women's non-conceptive (extended) sexuality might function in the context of pair-bonding. The current studies examined associations between women's loyalty and faithfulness to their relationships and frequency of sexual intercourse in women using hormonal contraception. As predicted, in study 1 estimated levels (adjusted for potency) of both synthetic estrogen and progestin delivered to women moderated the association between women's loyalty/faithfulness to their partner and frequency of intercourse: as estradiol levels diminished, and progestin levels increased, women's loyalty/faithfulness became more positively associated with frequency of intercourse. Study 2 replicated' these findings in a sample of women studied over a 12 week period. Results further support claims for a possible function of extended sexuality, and speak to hormonal mechanisms affecting it They also have important methodological and applied implications. (C) 2016 Elsevier Inc. All rights reserved.
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