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Handedness and sexual orientation : ウィキペディア英語版 | Handedness and sexual orientation A relationship between handedness and sexual orientation has been suggested by a number of researchers, who report that heterosexual individuals are somewhat more likely to be right-handed than homosexual individuals. The relationship between handedness and sexual orientation has been suggested within both sexes and may reflect the biological etiology of homosexuality; recent work by Ray Blanchard has linked the relationship to the fraternal birth order effect, which suggests that a man with several older biological brothers is more likely to be homosexual. The theory is still tentative and not all research has been able to confirm the disparity between homosexual and heterosexual men. == Studies ==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Handedness and sexual orientation」の詳細全文を読む
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