Department of Psychology, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada.
Arch Sex Behav. 2013 Apr;42(3):353-9. doi: 10.1007/s10508-012-0015-7. Epub 2012 Oct 6.
Androphilia refers to sexual attraction to adult males whereas gynephilia refers to sexual attraction to adult females. In Western populations, androphilia in males is familial, but the precise nature of this phenomenon is unclear. Some studies show that androphilic males have preponderances of androphilic male relatives in the maternal, but not paternal, line. In contrast, other studies show that male androphilia clusters in both the maternal and paternal lines. Low fertility populations are susceptible to producing anomalous patterns with respect to biodemographic correlates of male sexual orientation, which may account for discrepancies in the familial patterning of male androphilia across Western studies. We focused on a high fertility population to determine which pattern, if any, prevailed. The prevalence of androphilic male relatives was compared for Samoan gynephilic and androphilic male probands. Samoan androphilic males are known locally as fa'afafine. Compared to Samoan gynephilic males, fa'afafine had significantly more fa'afafine relatives in their maternal and paternal lines. The prevalence of fa'afafine relatives was not significantly different between the paternal and maternal lines for fa'afafine or gynephilic male probands. These findings indicate that male androphilia is familial in Samoa and that it clusters in both the paternal and maternal lines in high fertility populations. We consider our findings in the context of possible explanations for the familial clustering of male androphilia. In addition, we detail how the data presented here illuminate the prevalence of male androphilia in the Samoan population.
男性性欲指向成年男性，而女性性欲指向成年女性。在西方人群中，男性的性欲是家族性的，但这种现象的确切性质尚不清楚。一些研究表明，有性取向的男性在母系而非父系中具有较多的有性取向的男性亲属。相比之下，其他研究表明，男性的性欲在母系和父系中都存在聚类现象。在涉及男性性取向的生物人口学相关因素方面，低生育率人群容易产生异常模式，这可能解释了西方研究中男性性欲家族模式的差异。我们专注于一个高生育率的人群，以确定哪种模式存在或占主导地位。我们比较了萨摩亚有性取向的女性和有性取向的男性先证者的有性取向的男性亲属的患病率。萨摩亚有性取向的男性在当地被称为 fa'afafine。与萨摩亚有性取向的女性相比，fa'afafine 在母系和父系中都有明显更多的 fa'afafine 亲属。fa'afafine 或有性取向的女性先证者的父系和母系中 fa'afafine 亲属的患病率没有显著差异。这些发现表明，男性性欲在萨摩亚是家族性的，并且在高生育率人群中存在于父系和母系中。我们在可能解释男性性欲家族聚类的背景下考虑我们的发现。此外，我们详细说明了这里提出的数据如何阐明萨摩亚男性性欲的流行率。
