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The biology of sexual orientation has been studied in detail in several animal model systems. In the common fruit fly Drosophila melanogaster, the complete pathway of sexual differentiation of the brain and the behaviors it controls is well established in both males and females, providing a concise model of biologically controlled courtship. [42]
This is an accepted version of this page This is the latest accepted revision, reviewed on 16 January 2025. Pattern of romantic or sexual attraction "Sexual preference" redirects here. For the book, see Sexual Preference (book). Sexual orientation Sexual orientations Asexual Bisexual Heterosexual Homosexual Related terms Allosexuality Androphilia and gynephilia Bi-curious Gray asexuality ...
Someone's sexual orientation is their pattern of sexual interest in the opposite and/or same sex. [5] Physical and emotional aspects of sexuality include bonds between individuals that are expressed through profound feelings or physical manifestations of love, trust, and care. Social aspects deal with the effects of human society on one's ...
The relationship between the environment and sexual orientation is a subject of research. In the study of sexual orientation, some researchers distinguish environmental influences from hormonal influences, [1] while other researchers include biological influences such as prenatal hormones as part of environmental influences.
He adds that, by this framework, "(subjective) sexual attraction is the psychological core of sexual orientation", and also addresses that there may be "some skepticism in [both] the academic and clinical communities" about classifying asexuality as a sexual orientation, and that it raises two objections to such a classification: First, he ...
Using meta-analysis of neuroimaging, researchers have concluded that these areas are linked to sexual preferences in humans, which would explain why they may differ based on sexual orientation. [ 7 ] Another area of the brain which demonstrates sexual orientation differentiation is the thalamus, which is a structure involved in sexual arousal ...
Even more bettors are backing Ohio State compared to Notre Dame. The Buckeyes have been the most impressive team through the first two rounds of the CFP and have outscored Tennessee and Oregon by ...
Although historically abnormal sexual differentiation has pointed to androgens as a causal factor, there are codeterminants of gender identity and sexual orientation. [8] These factors are currently unknown, and thus no clear cut answer for the cause of transsexualism and homosexuality exists.