Babchishin Kelly M, Holmes Emma J, Banse Rainer, Seto Michael C
Department of Psychology, Carleton University, 1125 Colonel By Drive, Ottawa, ON, K1S 2B6, Canada.
Psychology Department, Universitӓt Bonn, Bonn, Germany.
Arch Sex Behav. 2024 Dec 30. doi: 10.1007/s10508-024-03059-1.
The current study examined the extent to which gender/sex preference moderated the role of cohabitation on incest avoidance in an online sample of 1,623 adults with at least one opposite-sex sibling. Consistent with previous research, we found that longer cohabitation with a sibling was associated with decreased sexual interest in sexual contact between hypothetical siblings. We extended the literature by finding that gender/sex preferences contribute significantly to our understanding of incest avoidance. Among female participants, we found that higher attraction to males was correlated with greater disgust toward hypothetical sibling incest, diminished sexual interest in hypothetical sibling incest, and fewer reports of sexual contact with their siblings. Among male participants, gender/sex preferences significantly moderated the relationship between cohabitation and reported sibling sexual contact. Males with higher attraction to females who had shorter cohabitation reported more sibling sexual contact compared to those with longer cohabitation; in contrast, males with higher attraction to males reported similar levels of sexual contact with siblings regardless of cohabitation length. Our findings emphasize the importance of considering gender/sex preferences to better understand the mechanisms underlying sibling incest.
本研究调查了在一个包含1623名至少有一个异性兄弟姐妹的成年在线样本中，性别偏好对同居在避免乱伦方面作用的调节程度。与先前研究一致，我们发现与兄弟姐妹同居时间越长，对假设的兄弟姐妹间性接触的性兴趣越低。我们通过发现性别偏好对我们理解避免乱伦有显著贡献，从而扩展了文献。在女性参与者中，我们发现对男性的吸引力越高，对假设的兄弟姐妹乱伦的厌恶感越强，对假设的兄弟姐妹乱伦的性兴趣越低，与兄弟姐妹发生性接触的报告也越少。在男性参与者中，性别偏好显著调节了同居与报告的兄弟姐妹性接触之间的关系。与同居时间较长的男性相比，对同居时间较短的女性吸引力较高的男性报告的兄弟姐妹性接触更多；相反，对男性吸引力较高的男性，无论同居时间长短，报告的与兄弟姐妹的性接触水平相似。我们的研究结果强调了考虑性别偏好对于更好地理解兄弟姐妹乱伦背后机制的重要性。
