Maruniak J A, Desjardins C, Bronson F H
Am J Physiol. 1977 Dec;233(6):E495-9. doi: 10.1152/ajpendo.1977.233.6.E495.
This study tested the hypothesis that subordination in male mice is directly related to reduced levels of circulating testosterone. Several measures of aggressiveness and submissiveness were quantified during or after daily encounters between pairs of intact males, castrated males, or castrated males bearing testosterone implants that were designed to maintain plasma testosterone titers at levels slightly above those of intact males. Behavioral measures included the total amount of fighting that resulted from daily pairing, the tendency for subordinates to fight back, and the relative frequency of urine marking. In all these regards, pairs of testosterone-implanted, castrated males formed dominant-subordinate relationships that involved apparently normal submissive behavior (compared to intact control pairs). Thus we found no evidence that submissive behavior was directly related to a reduction in circulating testosterone titers.
雄性小鼠的从属地位与循环睾酮水平降低直接相关。在成对的完整雄性小鼠、去势雄性小鼠或植入睾酮的去势雄性小鼠（旨在将血浆睾酮水平维持在略高于完整雄性小鼠的水平）每日相遇期间或之后，对几种攻击性和顺从性指标进行了量化。行为指标包括每日配对引发的打斗总量、从属者反击的倾向以及尿液标记的相对频率。在所有这些方面，植入睾酮的去势雄性小鼠对形成了主导-从属关系，其中涉及明显正常的顺从行为（与完整对照对相比）。因此，我们没有发现证据表明顺从行为与循环睾酮水平降低直接相关。
