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In this video I briefly describe research related to development of sexual orientation, with a focus on homosexuality. Despite Freud's emphasis on identification, there doesn't seem to be a relationship between parenting and sexual orientation. Twin studies have suggested that genes play a role in sexual orientation, though not a determining one. The womb environment may matter, particularly when it comes to prenatal levels of hormones, particularly testosterone. Differences in cultural practices and homosexual behaviors during adolescence don't seem to have a strong impact on later orientation. Lastly I consider the perceived importance of sexual orientation as a part of one's identity, which may vary between individuals and between cultures.

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