Homosexuality, Birth Order, and Evolution: Toward an Equilibrium Reproductive Economics of Homosexuality

@article{Miller2000HomosexualityBO,
  title={Homosexuality, Birth Order, and Evolution: Toward an Equilibrium Reproductive Economics of Homosexuality},
  author={Edward M. Miller},
  journal={Archives of Sexual Behavior},
  year={2000},
  volume={29},
  pages={1-34}
}
  • E. Miller
  • Published 1 February 2000
  • Psychology, Medicine
  • Archives of Sexual Behavior
The survival of a human predisposition for homosexuality can be explained by sexual orientation being a polygenetic trait that is influenced by a number of genes. During development these shift male brain development in the female direction. Inheritance of several such alleles produces homosexuality. Single alleles make for greater sensitivity, empathy, tendermindedness, and kindness. These traits make heterosexual carriers of the genes better fathers and more attractive mates. There is a… Expand
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References

SHOWING 1-10 OF 156 REFERENCES
Neurohormonal functioning and sexual orientation: a theory of homosexuality-heterosexuality.
TLDR
Evidence indicating that the process of determining human sexual orientation is fundamentally the same in all mammals is reviewed, and a theory of how the entire spectrum of humanSexual orientation is determined is proposed. Expand
Correlates and accompaniments of promiscuous sex among male homosexuals.
TLDR
An empirical exploration of some accompaniments of one dimension of homosexual behavior--having sexual experiences with a large number of partners is undertaken, to differentiate them and understand to what extent the lives of men at the upper end of this continuum are intertwined with other, typically negatively regarded aspects of sexual life. Expand
A genetic study of male sexual orientation.
Homosexual male probands with monozygotic cotwins, dizygotic cotwins, or adoptive brothers were recruited using homophile publications. Sexual orientation of relatives was assessed either by askingExpand
Sperm competition and the persistence of genes for male homosexuality.
TLDR
Behavior and sperm competition suggest what this advantage to the heterozygote might be and why it persists, when common sense suggests that it should result in fewer offspring. Expand
Biodemographic comparisons of homosexual and heterosexual men in the kinsey interview data
TLDR
Results extended previous findings that, compared with heterosexual controls, homosexual men have a later birth order, an earlier onset of puberty, and a lower body weight. Expand
The relation of birth order to sexual orientation in men and women.
TLDR
Results are consistent with the hypothesis that the high birth order of homosexual men reflects the progressive immunization of certain mothers to H-Y antigen by succeeding male fetuses, and the increasing effects of H- Y antibodies on sexual differentiation of the brain in succeeding male Fetuses. Expand
Human sexual orientation has a heritable component.
TLDR
Family, twin, and adoptee studies indicate that homosexuality and thus heterosexuality run in families, and possible mechanisms that could maintain a balanced polymorphism in human populations are presented. Expand
Birth order and male homosexuality: extension of Slater's index.
Homosexual men tend to be later-born children. Slater's index, the ratio of older sibs to all sibs, is consistently higher for male homosexuals than for comparable heterosexuals. According to someExpand
H-Y antigen and homosexuality in men.
TLDR
This hypothesis is consistent with a variety of evidence, including the apparent irrelevance of older sisters to the sexual orientation of later-born males, the probable involvement of H-Y antigen in the development of sex-typical traits, and the detrimental effects of immunization of female mice to H- Y antigen on the reproductive performance of subsequent male offspring. Expand
Heritable factors influence sexual orientation in women.
TLDR
Heritabilities were significant using a wide range of assumptions about both the base rate of homosexuality in the population and ascertainment bias and self-reported history of childhood gender nonconformity. Expand
...
1
2
3
4
5
...