James W H
MRC Mammalian Development Unit, University College London.
Br J Med Psychol. 1992 Mar;65(1):73-6; discussion 77-80. doi: 10.1111/j.2044-8341.1992.tb01686.x.
Grant (1990) reported significantly higher dominance scores during pregnancy of mothers who later bore sons than mothers who later bore daughters. Such findings have been reported in other species, and evidence is adduced here to suggest that this difference is not wholly a temporary effect of the pregnancy but probably pre- and post-dates the pregnancy.
格兰特（1990年）报告称，与后来生女儿的母亲相比，后来生儿子的母亲在孕期的支配分数显著更高。其他物种也有此类发现，本文提供的证据表明，这种差异并非完全是孕期的暂时影响，可能在孕期之前和之后就已存在。
