TY - JOUR
T1 - The evolution of female same-sex attraction
T2 - The male choice hypothesis
AU - Apostolou, Menelaos
AU - Shialos, Marios
AU - Khalil, Michalis
AU - Paschali, Vana
PY - 2017/10/1
Y1 - 2017/10/1
N2 - Prevalence studies indicate that about one in five women experience some degree of same-sex attraction. The evolutionary origins of such attraction are not well understood. Accordingly, this paper proposed a theoretical framework where, during the period of human evolution, same-sex attractions in women were under positive selection. The source of positive selection has been male preferences for opposite-sex sex partners who experienced same-sex attractions. This theoretical framework was used to generate four predictions that were tested in two online studies which employed a total of 1509 heterosexual participants. It was found that heterosexual women did not desire partners who experienced same-sex attractions, but a considerable proportion of heterosexual men desired partners who experienced same-sex attractions. In addition, it was found that men were more sexually excited than women by the same-sex infidelity of their partners, and they desired more than women, their opposite-sex partners to have sex with same-sex individuals. Finally, participants' preferences were contingent on the seriousness of the relationships, with same-sex attraction to be preferred more in short-term than in a long-term partner. These findings were employed in understanding the evolutionary origins of same-sex attraction in women.
AB - Prevalence studies indicate that about one in five women experience some degree of same-sex attraction. The evolutionary origins of such attraction are not well understood. Accordingly, this paper proposed a theoretical framework where, during the period of human evolution, same-sex attractions in women were under positive selection. The source of positive selection has been male preferences for opposite-sex sex partners who experienced same-sex attractions. This theoretical framework was used to generate four predictions that were tested in two online studies which employed a total of 1509 heterosexual participants. It was found that heterosexual women did not desire partners who experienced same-sex attractions, but a considerable proportion of heterosexual men desired partners who experienced same-sex attractions. In addition, it was found that men were more sexually excited than women by the same-sex infidelity of their partners, and they desired more than women, their opposite-sex partners to have sex with same-sex individuals. Finally, participants' preferences were contingent on the seriousness of the relationships, with same-sex attraction to be preferred more in short-term than in a long-term partner. These findings were employed in understanding the evolutionary origins of same-sex attraction in women.
KW - Homosexuality
KW - Male choice hypothesis
KW - Parental choice
KW - Same-sex attraction
KW - Weak selection hypothesis
UR - http://www.scopus.com/inward/record.url?scp=85019490195&partnerID=8YFLogxK
U2 - 10.1016/j.paid.2017.05.020
DO - 10.1016/j.paid.2017.05.020
M3 - Article
AN - SCOPUS:85019490195
SN - 0191-8869
VL - 116
SP - 372
EP - 378
JO - Personality and Individual Differences
JF - Personality and Individual Differences
ER -