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      The effects of prenatal stress, and of prenatal alcohol and nicotine exposure, on human sexual orientation

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      Physiology & Behavior
      Elsevier BV

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          Neurohormonal functioning and sexual orientation: a theory of homosexuality-heterosexuality.

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            Prenatal stress feminizes and demasculinizes the behavior of males.

            Naomi Ward (1972)
            Male rats were exposed to prenatal or postnatal stress, or both. The prenatally stressed males showed low levels of male copulatory behavior and high rates of female lordotic responding. Postnatal stress had no effect. The modifications are attributed to stress-mediated alterations in the ratio of adrenal to gonadal androgens during critical stages of sexual differentiation. Specifically, it appears that stress causes an increase in the weak adrenal androgen, androstenedione, from the maternal or fetal adrenal cortices, or from both, and a concurrent decrease in the potent gonadal androgen, testosterone.
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              Social Modulation of Circulating Hormone Levels in the Male

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                Author and article information

                Journal
                Physiology & Behavior
                Physiology & Behavior
                Elsevier BV
                00319384
                September 2001
                September 2001
                : 74
                : 1-2
                : 213-226
                Article
                10.1016/S0031-9384(01)00564-9
                46a6681c-801e-49d1-9eb5-33a4ae569466
                © 2001

                http://www.elsevier.com/tdm/userlicense/1.0/

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