Yang L Y, Clemens L G
Neuroscience Program, Michigan State University, East Lansing 48824, USA.
Physiol Behav. 1996 Dec;60(6):1505-11. doi: 10.1016/s0031-9384(96)00314-9.
The objectives of this study were to investigate the temporal aspects of female sexual behavior during single and multiple ejaculatory tests. Females were tested in a two-compartment chamber where they could escape from the male following sexual contacts. In Experiment 1, correlation analysis showed that the number of intromissions received by the female over 3 ejaculatory series was positively correlated with the female's postejaculatory refractory period (PER). In Experiment 2, females receiving 2-4 intromissions before ejaculation had a PER that did not differ from those receiving 5-15 (average 10) intromissions preceding ejaculation. However, if the male ejaculated on the first or second intromission, the female's PER was significantly shorter than the other groups and did not differ from her return latency after an intromission without ejaculation. Females receiving 24-31 intromissions preceding ejaculation exhibited the longest PER. Analysis revealed that the number of intromissions received by females before ejaculation was positively correlated with the female's PER. We concluded that the male's ejaculatory reflex, seminal emission, and postejaculatory behavior alone without at least 2 preceding intromissions were not sufficient to induce a female's PER comparable to that seen after an ejaculation during normal copulation. In addition, the number of intromissions received by the female preceding ejaculation was positively correlated with the female's PER if the range of intromission frequency was large enough.
本研究的目的是调查在单次和多次射精测试期间雌性性行为的时间方面。雌性在一个两室的实验箱中接受测试，在性接触后它们可以逃离雄性。在实验1中，相关性分析表明，雌性在3个射精系列中接受的插入次数与雌性的射精后不应期（PER）呈正相关。在实验2中，射精前接受2 - 4次插入的雌性的PER与射精前接受5 - 15次（平均10次）插入的雌性没有差异。然而，如果雄性在第一次或第二次插入时射精，雌性的PER明显短于其他组，并且与无射精插入后的返回潜伏期没有差异。射精前接受24 - 31次插入的雌性表现出最长的PER。分析表明，雌性射精前接受的插入次数与雌性的PER呈正相关。我们得出结论，雄性的射精反射、射精和射精后行为，若没有至少2次之前的插入，不足以诱导出与正常交配射精后相当的雌性PER。此外，如果插入频率范围足够大，雌性射精前接受的插入次数与雌性的PER呈正相关。
