Huck U W, Lisk R D, Parente E J
Biology Program, Sangamon State University, Springfield, Illinois 62794-4243.
J Comp Psychol. 1988 Dec;102(4):388-91. doi: 10.1037/0735-7036.102.4.388.
After 12-15 ejaculatory series, each consisting of several short intromissions (2- to 3-s vaginal penetration) and an ejaculation, male golden hamsters adopt an altered copulatory pattern consisting of long intromissions (5- to 25-s penetration with intravaginal thrusting). Receptivity declines and the tendency for the female to attack the male increases at about the time of this shift in copulatory pattern. Because the mean interintromission interval (III) between short intromissions is about 8 s compared to 100 s between long intromissions, it is possible that females detect this difference and adjust their mating accordingly. When the III between short intromissions from a rested male was experimentally increased to 100 s by use of a halter and lead device, the duration of lordosis was significantly less than that displayed by females paired with control males (8-s III) and virtually the same as that displayed by females paired with males that produced only long intromissions. This suggests that the female uses the temporal patterning of intravaginal stimulation as one criterion for terminating mating with a particular male.
经过12 - 15次射精序列后，每次射精序列由几次短暂插入（2至3秒的阴道插入）和一次射精组成，雄性金黄仓鼠会采用一种改变后的交配模式，即长时间插入（5至25秒的插入并伴有阴道内抽动）。在交配模式发生这种转变时，雌性的接受性下降，攻击雄性的倾向增加。由于短暂插入之间的平均插入间隔（III）约为8秒，而长时间插入之间为100秒，雌性有可能察觉到这种差异并相应地调整它们的交配行为。当通过使用缰绳和牵引装置将休息后的雄性的短暂插入之间的III实验性地增加到100秒时，脊柱前凸的持续时间明显短于与对照雄性配对的雌性所表现出的持续时间（III为8秒），并且实际上与与只产生长时间插入的雄性配对的雌性所表现出的持续时间相同。这表明雌性将阴道内刺激的时间模式作为终止与特定雄性交配的一个标准。
