Lester G L, Gorzalka B B
Department of Psychology, University of British Columbia, Vancouver, Canada.
Behav Neural Biol. 1988 May;49(3):398-405. doi: 10.1016/s0163-1047(88)90418-9.
The lordosis duration of the female golden hamster (Mesocricetus auratus) in response to novel and familiar mating partners was examined. In Experiment 1, females mated to the point of sexual satiation with one male hamster, and following its removal, showed renewed receptivity in response to the introduction of a second male. Upon sexual satiation with the second male, females either received a novel third male or were reexposed to the original male. Total lordosis duration in the third bout in the group receiving a novel male was significantly greater than in the group reexposed to the original male. In Experiment 2, the insertion of a 1-h delay between the second and the third mating partner had no effect on the female's responsiveness, regardless of whether the third male was the original male or a novel male. In Experiment 3, removal of the ovaries followed by hormone replacement treatment (40 micrograms estradiol benzoate, 72 h prior to testing, and 500 micrograms progesterone, 4 h prior to testing) failed to alter the females' ability to discriminate between novel and familiar mating partners. These results demonstrate that females make clear discriminations among individual mating partners, that this can affect sexual receptivity and will continue to do so following a delay of at least 1 h, and that the effect is not mediated by the release of ovarian steroids.
研究了雌性金黄地鼠（Mesocricetus auratus）对陌生和熟悉交配伙伴的脊柱前凸持续时间。在实验1中，雌性与一只雄性仓鼠交配至性满足点，在该雄性被移走后，对引入的第二只雄性表现出重新的接受性。在与第二只雄性性满足后，雌性要么接受一只陌生的第三只雄性，要么再次接触原来的雄性。接受陌生雄性的组在第三次交配回合中的总脊柱前凸持续时间显著长于再次接触原来雄性的组。在实验2中，在第二和第三个交配伙伴之间插入1小时的延迟对雌性的反应性没有影响，无论第三只雄性是原来的雄性还是陌生的雄性。在实验3中，切除卵巢后进行激素替代治疗（测试前72小时注射40微克苯甲酸雌二醇，测试前4小时注射500微克孕酮）未能改变雌性区分陌生和熟悉交配伙伴的能力。这些结果表明，雌性能够明确区分个体交配伙伴，这会影响性接受性，并且在至少延迟1小时后仍会如此，而且这种影响不是由卵巢类固醇的释放介导的。
