Rose R M, Bernstein I S, Gordon T P, Lindsley J G
Psychosom Med. 1978 Feb;40(1):60-70. doi: 10.1097/00006842-197802000-00007.
Five adolescent male rhesus were followed for 3 years, from age 2 through age 4, with the collection of monthly testosterone levels, along with observation of behavior. Testosterone levels showed initial rises by age 3, but did not show the adult male seasonal pattern until 4. Play behavior fell significantly from age 2 to age 3, while sex behavior showed seasonal increases in both Year 2 and Year prior to the rise in plasma testosterone. The number of adult males in the social group may influence the timing of the rise in testosterone during adolescence. Injury may also serve to delay the increase in testosterone in males during their third year of development.
对5只青春期雄性恒河猴进行了为期3年的跟踪研究，从2岁到4岁，每月采集睾酮水平，并观察其行为。睾酮水平在3岁时开始初步上升，但直到4岁才呈现成年雄性的季节性模式。从2岁到3岁，玩耍行为显著减少，而性行为在血浆睾酮升高之前的第2年和第3年都呈现季节性增加。社会群体中成年雄性的数量可能会影响青春期睾酮升高的时间。受伤也可能会延迟雄性在发育第三年睾酮的增加。
