Non-intromissive mating stimuli are sufficient to enhance sexual behaviors in ovariectomized female rats.
Non-intromissive mating stimuli are sufficient to enhance sexual behaviors in ovariectomized female rats.
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DOI：
10.1016/j.yhbeh.2008.12.008
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发表时间：
2009-03
影响因子：
3.5
通讯作者：
Mohan G
中科院分区：
文献类型：
--
作者：
Blaustein JD;Farrell S;Ghavami G;Laroche J;Mohan G
当切除卵巢/肾上腺切除的雌性大鼠注射阈下剂量的雌二醇时，雄性大鼠每隔半小时给予交配刺激，前凸水平在几个小时内逐渐增加。我们测试了这样的假设：副交配行为（在坐骑之前和坐骑之间重复发生的行为）通常也被认为严重依赖黄体酮，这种刺激也会增强。我们之前曾报道过，交配行为的增强在很大程度上取决于雄性的侵入性刺激。在本研究中，交配刺激诱发了高水平的副交配行为以及脊柱前凸。然而，令人惊讶的是，与之前的发现相反，这种增加不仅出现在接受侵入性刺激的大鼠中，而且也出现在接受非侵入性刺激的大鼠中。此外，侵入性刺激会诱发高水平的排斥行为。在随后的实验中，实验者诱导的机械刺激仅增加了排斥行为，而没有增加交配行为。结果共同证明，在这些实验中使用的条件下，非侵入性刺激足以诱导雌二醇引发的大鼠的交配和副交配行为。然而，在这些研究中使用的条件下，侵入性刺激会增加排斥行为。
When ovariectomized/adrenalectomized female rats, injected with subthreshold doses of estradiol are given copulatory stimulation by a male rat at half hour intervals, the level of lordosis gradually increases over the course of a few hours. We tested the hypothesis that paracopulatory behaviors (behaviors that occur repetitively prior to and between mounts), also generally considered to be heavily dependent on progesterone, are enhanced by this stimulation as well. We have reported previously that the enhancement of copulatory behavior is dependent to a large extent on intromissive stimulation by the male. In the present study, mating stimulation induced high levels of paracopulatory behaviors, as well as lordosis. Surprisingly, though, and in contrast to previous findings, this increase was seen not only in rats receiving intromissive stimulation, but in those receiving non-intromissive stimulation as well. Furthermore, intromissive stimulation induced high levels of rejection behavior. In a subsequent experiment, experimenter-induced, mechanical stimulation increased only rejection behaviors, not copulatory behavior. The results collectively demonstrate that, under the conditions used in these experiments, non-intromissive stimulation is sufficient for inducing both copulatory and paracopulatory behaviors in estradiol-primed rats. However, under the conditions used in these studies, intromissive stimulation increases rejection behaviors.
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影响因子：
3.5
作者：
CARTER, CS;MICHAEL, SJ;MORRIS, AH
通讯作者：
MORRIS, AH
影响因子：
3.6
作者：
CARTER, CS;GETZ, LL;ARNOLD, P
通讯作者：
ARNOLD, P
影响因子：
3.5
作者：
Bennett, AL;Blasberg, ME;Blaustein, JD
通讯作者：
Blaustein, JD
影响因子：
56.9
作者：
BERMANT, G
通讯作者：
BERMANT, G
影响因子：
3.6
作者：
DECATANZARO, D;KNIPPING, RP;GORZALKA, BB
通讯作者：
GORZALKA, BB