Pomerantz S M, Roy M M, Goy R W
Wisconsin Regional Primate Research Center, Madison 53715.
Horm Behav. 1988 Jun;22(2):219-30. doi: 10.1016/0018-506x(88)90068-2.
We previously demonstrated that in a simple pair test situation the expression of adult male sexual behavior by rhesus monkeys depends on both prenatal (organizational) and adult (activational) androgen exposure. In the present study we used a more complex social situation (trio tests) to evaluate the behavior of males, females, and female pseudohermaphrodites. In these trio tests, the experimental subjects were tested with two estrogenized stimulus females simultaneously. Sex differences in behavior were made apparent by this complex testing situation that could not have emerged in the pair test. Gonadectomized males and female pseudohermaphrodites, but not ovariectomized females that were concurrently receiving TP, exhibited increased male sexual behavior in trio tests compared to pair tests. In trio tests, the males and pseudohermaphrodites showed evidence of partner preference by interacting almost exclusively with one of the two stimulus females. These "preferred females" in turn were responsible for the majority of the proceptive behavior exhibited in these tests. Ovariectomized females rarely displayed male sexual behavior in either test situation. These results further support the hypothesis that prenatal androgen exposure predisposes monkeys to exhibit masculine behavior traits when they reach adulthood and are exposed to the activational influences of androgens.
我们之前证明，在简单的配对测试情境中，恒河猴成年雄性性行为的表现取决于产前（组织化）和成年期（激活化）雄激素的暴露。在本研究中，我们使用了更复杂的社会情境（三重测试）来评估雄性、雌性和雌性假两性畸形个体的行为。在这些三重测试中，实验对象同时与两只经雌激素处理的刺激雌性进行测试。这种复杂的测试情境使行为上的性别差异变得明显，而在配对测试中则不会出现这种差异。与配对测试相比，去势雄性和雌性假两性畸形个体（但同时接受睾酮的去卵巢雌性除外）在三重测试中表现出更多的雄性性行为。在三重测试中，雄性和假两性畸形个体通过几乎只与两只刺激雌性中的一只互动，表现出对伴侣的偏好。反过来，这些“偏好的雌性”引发了这些测试中大部分的接受行为。去卵巢雌性在两种测试情境中都很少表现出雄性性行为。这些结果进一步支持了以下假设：产前雄激素暴露使猴子在成年并受到雄激素激活影响时倾向于表现出男性化行为特征。
