Social and Behavioral Sciences Commons^™

Biological Correlates Of Same Sex Erotic Fantasy And Date Of Birth: An Empirical Study Of 2d:4d Ratios, Rachel Lloyd

Electronic Theses & Dissertations

Based on extensive psychological and embryological research, neurohormonal theory proposes that males and females develop in sexually dimorphic patterns, in large part, because of differential androgen exposure during prenatal development (Kimmel & Weiner, 1995). Likewise, the theory suggests that variations in sexual orientation are also related to differential androgen exposure in prenatal life (Robinson & Manning, 2000). This study examined the ratio of the length of the second finger (2'1 digit) relative to the fourth finger (4th digit), also referred to as 2D:4D, and its relationship to same-sex erotic fantasy. These ratios are sexually dimorphic and are a presumed correlate …