(37)：袍泽之情—兄弟多少影响男孩性取向

（37）：袍泽之情—兄弟多少影响男孩性取向 沪江英语 | chenjilong 上一期 下一期

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Brothers in arms

袍泽之情（陈继龙 编译）

http://bulo.hjenglish.com/menu/337/

Jun 29th 2006 | TORONTO From The Economist print edition

RAY BLANCHARD, a researcher at Toronto's Centre for Addiction and Mental Health, was reviewing some data a few years ago when he noticed something odd :gay men seemed to have more older brothers than straight men.

几年前，多伦多毒瘾与心理健康中心研究员雷?布朗夏尔在回顾一些数据时注意到一个奇怪的现象——同性恋男子的哥哥似乎比异性恋男子多。

Intrigued—and sceptical—he decided to investigate. He recruited 302 gay men and the same number of heterosexual controls and inquired about their families. How many siblings[1] did they have, _______① what sex, and how had the births been spaced? How old had their parents been when they had had them? Dr Blanchard found that only one detail seemed to predict sexual orientation :the more elder brothers a man had, the more likely he was to be gay. （1）Neither elder sisters nor younger siblings of either sex had any effect, but each additional elder brother increased his chance of being gay by about 33% from the population average of one man in 50.

由于对此感到好奇和怀疑，他决定做个调查。他招募了302名同性恋男子和一样多的异性恋男子，并问及一些与家庭有关的问题 :有几个兄弟，几个姐妹，前后出生间隔多长时间？出生时父母多大年龄？布朗夏尔博士发现，预示性取向的似乎只有一个细节 :哥哥越多，成为同性恋的可能性就越大。姐姐以及弟妹的数量对某人的性取向没有任何影响。一般而

言，平均50个男人中就有1人可能成为同性恋，每多一位哥哥，此人成为同性恋的可能性就增加33％左右。（译者注 :这句有些费解，我的理解是 :from the population average of one man in 50中的“from”与前面的“increase”相对应，也就是在此基础上增加了33%。这个基础就是指“平均每50个男人中就有一个人可能成为同性恋”，这是一般而言的，如果这“一个”人多一位哥哥，他成为同性恋的可能性就增加33％，也就是这个“50分之一”发生的可能性增加33%。有点乱，仅供参考。）

It was a rather perplexing discovery. It implied either that being brought _______② with a lot of elder brothers affects a boy's sexual orientation, or that a mother's body is somehow able to keep count of how many sons she has conceived, and that this count affects the orientation of future children. （2）Hard as it was to explain, though, the finding was replicated again and again,