Sociosexual orientation

Sociosexual orientation (or sociosexuality) is the individual difference in the willingness to engage in sexual activity outside of a committed relationship. Individuals with a more restricted sociosexual orientation are less willing to engage in casual sex; they prefer greater love, commitment and emotional closeness before having sex with romantic partners. Individuals who have a more unrestricted sociosexual orientation are more willing to have casual sex and are more comfortable engaging in sex without love, commitment or closeness.[1]

Measurement

The revised Sociosexual Orientation Inventory (SOI-R) was designed to measure sociosexuality, with high SOI scores corresponding to an unrestricted orientation and low SOI scores denoting a more restricted orientation. The SOI-R also allows for the separate assessment of three facets of sociosexuality: behavior, attitude and desire.[2]

Gender differences and sexual orientation

Men tend to have higher SOI scores and be more unrestricted than women across a variety of cultures.[3][4] However, there is more variability in scores within each gender than between men and women, indicating that although the average man is less restricted than the average woman, individuals may vary in sociosexual orientation regardless of gender.[5]

Bisexual women are significantly less restricted in their sociosexual attitudes than both lesbian and heterosexual women. Bisexual women are also the most unrestricted in sociosexual behavior, followed by lesbians and then, heterosexual women.[4] Gay and bisexual men are similar to heterosexual men in sociosexual attitudes, in that they express relatively unrestricted attitudes relative to women. However, gay men are the most unrestricted in sociosexual behavior, followed by bisexual men and then, heterosexual men. This may be because gay men have more potential mating partners who prefer short-term, casual sexual encounters.[4]

Unrestricted sociosexuality is associated with early life experiences with sex, more frequent sexual activity and a greater number of lifetime sex partners. Unrestricted men tend to have greater rape myth acceptance, past sexual aggression and more conservative attitudes about women than restricted men. Unrestricted women tend to have more sexual fantasies involving dominance and lower levels of sexual conservatism than restricted women.[6]

Individual differences

Individuals who are sociosexually unrestricted tend to score higher on openness to experience,[7] and be more extraverted,[8] less agreeable,[8] lower on honesty-humility,[9] more erotophilic,[10] more impulsive,[11] more likely to take risks,[11] more likely to have an avoidant attachment style,[12] less likely to have a secure attachment style,[13] and score higher on the Dark Triad traits (i.e. narcissism, Machiavellianism, psychopathy).[14][15] Higher masculinity[16] and eveningness[17] in women is related to unrestricted sociosexuality. High self-monitoring is also associated with unrestricted sociosexuality, regardless of gender or sexual orientation.[18]

Individuals with an intrinsic religious orientation (i.e., religion as an end) tend to be sociosexually restricted, while those with an extrinsic religious orientation (i.e., religion as a mean to achieve non-religious goals) tend to be unrestricted.[19]

Mating tendencies

Motives

Unrestricted women are more motivated to engage in casual sex than restricted women as they perceive more benefits associated with short-term mating. These include sexual benefits (e.g., experiencing the novelty of a new partner), resource benefits (e.g., receiving expensive gifts) and the improvement of their seduction skills. Sociosexuality is not associated with short-term benefits for men.[20]

When viewing attractive female models, unrestricted men are more interested in the models’ physical attractiveness, while restricted men show more interest in the social traits presumably possessed by attractive females. Unrestricted women report more interest in attractive male models’ popularity and are less interested in their willingness to commit, compared to restricted women.[21]

Mate preferences

Men and women with an unrestricted sociosexual orientation view short-term mates with greater sexual experience as more desirable, whereas restricted women perceive partners’ sexual inexperience as desirable.[22][23] Unrestricted individuals place more importance on partners’ physical attractiveness and sex appeal, while restricted individuals place more weight on characteristics indicative of good personal and parenting qualities (e.g., kind, responsible, faithful).[24]

Individuals are able to accurately assess the sociosexual orientation of computer-generated and real faces, with unrestricted sociosexuality being associated with greater attractiveness in female faces and greater masculinity in male faces. Women tend to prefer male faces associated with restricted sociosexuality, while men prefer unrestricted female faces, both for short-term and long-term partners.[25][26]

Relationship interactions

Unrestricted women report engaging in more social interactions with men on a daily basis than restricted women. However, unrestricted individuals rate their interactions with their best friends (non-romantic) as lower in quality (i.e., as less pleasant and satisfying) than restricted individuals.[27] Unrestricted individuals are also more likely to view cheating or infidelity as acceptable under certain conditions (e.g., when involved in a bad relationship), and report engaging in more cheating than restricted individuals.[28] The relationship between sociosexual orientation and infidelity is mediated by commitment, meaning unrestricted individuals may cheat because they are less committed to their partner than restricted individuals.[29]

Hormones

Individuals who are partnered typically have lower testosterone levels than individuals who are single. However, this was found to apply solely to individuals possessing a restricted sociosexual orientation. Partnered, unrestricted men and women’s testosterone levels are more similar to the levels of single men and women.[30]

Culture

In regions that suffer from a high prevalence of infectious diseases, both men and women report lower levels of sociosexuality, as the costs of an incautious lifestyle (i.e., being unrestricted) may outweigh the benefits.[31]

Implications

Possessing an unrestricted sociosexual orientation seems to increase the likelihood of having a son by 12-19% in American samples.[32] This may be explained by the generalized Trivers-Willard hypothesis, which states that parents who possess any heritable trait that increases males’ reproductive success above females’ will have more sons, and will have more daughters if they possess traits that increase females’ reproductive success above males’.[33] Since unrestricted sociosexuality increases the reproductive fitness of sons more than daughters (as males have the potential to have more offspring through casual sex), unrestricted parents have a higher-than-expected offspring sex ratio (more sons).

Relevant theories

Parental investment theory

According to the parental investment theory, the gender that invests more in offspring tends to be more discriminating and more sociosexually restricted (usually women, due to pregnancy, childbirth and lactation).[34] In a year, a woman can only have one child (with the exception of twins), regardless of the number of partners she has had, whereas a man can potentially have as many children as the number of women with whom he has slept. Thus, women should be more selective and restricted in order to have children with partners possessing good genes and resources, who can provide for potential offspring. Men, however, may increase their reproductive fitness by being unrestricted and having many children with many women. Thus, since men do not need to invest as much physically (no pregnancy), they tend to have a more unrestricted sociosexual orientation.

Sex ratio theory

Operational sex ratio is the number of sexually competing males versus the number of sexually competing females in the local mating pool.[3] High sex ratios indicate that there are more men than women available, while low sex ratios imply more women than men are sexually available. High sex ratios (more men) are associated with lower SOI scores (more restricted sociosexual orientation), as men must satisfy women’s preference for long-term monogamous relationships if they are to effectively compete for the limited number of women. Low sex ratios (more women) are correlated with more unrestricted sociosexuality, as men can afford to demand more casual sex if they are relatively scarce and in demand.[35]

Strategic pluralism theory

Strategic pluralism suggests that women evolved to evaluate men on two dimensions: their potential to be a good provider for offspring and their degree of genetic quality. The local environment should have influenced which mate characteristics were preferred by women. In demanding environments where biparental care was critical to infant survival, women should have valued good parenting qualities more, leading men to adopt a more restricted sociosexual orientation and invest more in their offspring to help ensure their children survive. In disease-prevalent environments, good genes that would help offspring resist pathogens should have been prioritized by women, leading healthy men to be more sociosexually unrestricted in order to pass on their genes to many offspring.[5]

Social structural theory

According to social structural theory, the division of labor and social expectations lead to gender differences in sociosexuality. In cultures with more traditional gender roles (where women have less freedom than men), gender differences in sociosexual orientation are larger. In these societies, where women have less access to power and money than men, it is expected that women should be more sexually restricted and only have sexual relations with men in the context of a committed relationship, whereas men may be sexually unrestricted if they wish. In more egalitarian societies, where men and women have equal access to power and money, the gender difference in sociosexuality is less pronounced, as individuals may take on the social role of the other gender.[36]

See also

References

  1. ↑ Simpson, J. A.; Gangestad, S.W. (1991). "Individual differences in sociosexuality: Evidence for convergent and discriminant validity". Journal of Personality and Social Psychology. 60: 870–883. doi:10.1037/0022-3514.60.6.870.
  2. ↑ Penke, L.; Asendorpf, J. B. (2008). "Beyond global sociosexual orientations: A more differentiated look at sociosexuality and its effects on courtship and romantic relationships". Journal of Personality and Social Psychology. 95: 1113–1135. doi:10.1037/0022-3514.95.5.1113.
  3. 1 2 Schmitt, D. P. (2005). "Sociosexuality from Argentina to Zimbabwe: A 48-nation study of sex, culture, and strategies of human mating". Behavioral and Brain Sciences. 28: 247–311. doi:10.1017/s0140525x05000051.
  4. 1 2 3 Schmitt, D. P. (2007). "Sexual strategies across sexual orientations: How personality traits and culture relate to sociosexuality among gays, lesbians, bisexuals, and heterosexuals". Journal of Psychology and Human Sexuality. 18: 183–214. doi:10.1300/j056v18n02_06.
  5. 1 2 Gangestad, S. W.; Simpson, J. A. (2000). "The evolution of human mating: Trade-offs and strategic pluralism". Behavioral and Brain Sciences. 23: 573–587. doi:10.1017/s0140525x0000337x.
  6. ↑ Yost, M. R.; Zurbriggen, E. L. (2006). "Gender differences in the enactment of sociosexuality: An examination of implicit social motives, sexual fantasies, coercive sexual attitudes, and aggressive sexual behavior". Journal of Sex Research. 43: 163–173. doi:10.1080/00224490609552311.
  7. ↑ Lameiras Fernández, M.; Rodríguez Castro, Y. (2003). "The Big Five and sexual attitudes in Spanish students". Social Behavior and Personality. 31: 357–362. doi:10.2224/sbp.2003.31.4.357.
  8. 1 2 Wright, T. M. (1999). "Female sexual behavior: Analysis of Big Five trait facets and domains in the prediction of sociosexuality". Dissertation Abstracts International: Section B: The sciences & Engineering. 59: 5611.
  9. ↑ Bourdage, J.S.; Lee, K.; Ashton, M.C.; Perry, A. (2007). "Big Five and HEXACO model personality correlates of sexuality". Personality and Individual Differences. 43: 1506–1516. doi:10.1016/j.paid.2007.04.008.
  10. ↑ Schmitt, D. P.; Buss, D. M. (2000). "Sexual dimensions of person description: Beyond or subsumed by the Big Five?". Journal of Research in Personality. 34: 141–177. doi:10.1006/jrpe.1999.2267.
  11. 1 2 Seal, D. W.; Agostinelli, G. (1994). "Individual differences associated with high-risk sexual behaviour: Implications for intervention programmes". AIDS Care. 6: 393–397. doi:10.1080/09540129408258653.
  12. ↑ Brennan, K. A.; Shaver, P. R. (1995). "Dimensions of adult attachment, affect regulation, and romantic relationship functioning". Personality and Social Psychology Bulletin. 21: 267–283. doi:10.1177/0146167295213008.
  13. ↑ Simon, E. P. (1997). "Adult attachment style and sociosexuality". Dissertation Abstracts International: Section B: The sciences & Engineering. 57: 5966.
  14. ↑ Foster, J. D.; Shrira, L.; Campbell, W. K. (2006). "Theoretical models of narcissism, sexuality, and relationship commitment". Journal of Social and Personal Relationships. 23: 367–386. doi:10.1177/0265407506064204.
  15. ↑ Jonason, P. K.; Li, N. P.; Webster, G. W.; Schmitt, D. P. (2009). "The Dark Triad: Facilitating short-term mating in men". European Journal of Personality. 23: 5–18. doi:10.1002/per.698.
  16. ↑ Clark, A. P. (2004). "Self-perceived attractiveness and masculinization predict women's sociosexuality". Evolution and Human Behavior. 25: 113–124. doi:10.1016/s1090-5138(03)00085-0.
  17. ↑ "Morningness–eveningness and sociosexuality: Evening females are less restricted than morning ones". Personality and Individual Differences. 68: 13–17. doi:10.1016/j.paid.2014.04.006.
  18. ↑ Sakaguchi, K.; Sakai, Y.; Ueda, K.; Hasegawa, T. (2007). "Robust association between sociosexuality and self-monitoring in heterosexual and non-heterosexual Japanese". Personality and Individual Differences. 43: 815–825. doi:10.1016/j.paid.2007.02.006.
  19. ↑ Rowatt, W.C.; Schmitt, D.P. (2003). "Associations between religious orientation and varieties of sexual experience". Journal for the Scientific Study of Religion. 42: 455–465. doi:10.1111/1468-5906.00194.
  20. ↑ Greiling, H.; Buss, D. M. (2000). "Women's sexual strategies: The hidden dimension of extra-pair mating". Personality and Individual Differences. 28: 929–963. doi:10.1016/s0191-8869(99)00151-8.
  21. ↑ Townsend, J. M.; Wasserman, T. (1998). "Sexual attractiveness: Sex differences in assessment and criteria". Evolution and Human Behavior. 19: 171–191. doi:10.1016/s1090-5138(98)00008-7.
  22. ↑ Wiederman, M. W.; Dubois, S. L. (1998). "Evolution and sex differences in preferences for short-term mates: Results from a policy capturing study". Evolution and Human Behavior. 19: 153–170. doi:10.1016/s1090-5138(98)00006-3.
  23. ↑ Sprecher, S.; Regan, P. C.; McKinney, K.; Maxwell, K.; Wazienski, R. (1997). "Preferred level of sexual experience in a date or mate: The merger of two methodologies". The Journal of Sex Research. 34: 327–337. doi:10.1080/00224499709551901.
  24. ↑ Simpson, J. A.; Gangestad, S. W. (1992). "Sociosexuality and romantic partner choice". Journal of Personality. 60: 31–51. doi:10.1111/j.1467-6494.1992.tb00264.x.
  25. ↑ Boothroyd, L. G.; Jones, B. C.; Burt, D. M.; DeBruine, L. M.; Perrett, D. I. (2008). "Facial correlates of sociosexuality". Evolution and Human Behavior. 29: 211–218. doi:10.1016/j.evolhumbehav.2007.12.009.
  26. ↑ Boothroyd, L.G.; Cross, C.P.; Gray, A.W.; Coombes, C.; Gregson-Curtis, K. (2011). "Perceiving the facial correlates of sociosexuality: further evidence". Personality and Individual Differences. 50: 422–425. doi:10.1016/j.paid.2010.10.017.
  27. ↑ Hebl, M. R.; Kashy, D. A. (1995). "Sociosexuality and everyday social interaction". Personal Relationships. 2: 371–383. doi:10.1111/j.1475-6811.1995.tb00099.x.
  28. ↑ Feldman, S. S.; Cauffman, E. (1999). "Your cheatin' heart: Attitudes, behaviors, and correlates of sexual betrayal in late adolescents". Journal of Research on Adolescence. 9: 227–252. doi:10.1207/s15327795jra0903_1.
  29. ↑ Mattingly, B. A.; Clark, E. M.; Weidler, D. J.; Bullock, M.; Hackathorn, J.; Blankmeyer, K. (2011). "Sociosexual orientation, commitment, and infidelity: A mediation analysis". The Journal of Social Psychology. 151: 222–226. doi:10.1080/00224540903536162.
  30. ↑ Edelstein, R.S.; Chopik, W.J.; Kean, E.L. (2011). "Sociosexuality moderates the association between testosterone and relationship status in men and women" (PDF). Hormones and Behavior. pp. 248–255. doi:10.1016/j.yhbeh.2011.05.007.
  31. ↑ Schaller, M.; Murray, D. R. (2008). "Pathogens, personality and culture: Disease prevalence predicts worldwide variability in sociosexuality, extraversion, and openness to experience". Journal of Personality and Social Psychology. 95: 212–221. doi:10.1037/0022-3514.95.1.212. PMID 18605861.
  32. ↑ Kanazawa, S.; Apari, P. (2009). "Sociosexually unrestricted parents have more sons: A further application of the generalized Trivers-Willard hypothesis (gTWH)". Annals of Human Biology. 36: 320–330. doi:10.1080/03014460902766918.
  33. ↑ Kanazawa, S (2005). "Big and tall parents have more sons: Further generalizations of the Trivers-Willard hypothesis". Journal of Theoretical Biology. 235: 583–590. doi:10.1016/j.jtbi.2005.02.010.
  34. ↑ Trivers, R. (1972). Parental investment and sexual selection. In B. Campbell (Eds.), Sexual selection and the descent of man, 1871-1971. Chicago: Aldine.
  35. ↑ Pedersen, F. A. (1991). "Secular trends in human sex ratios: Their influence on individual and family behavior". Human Nature. 2: 271–291. doi:10.1007/bf02692189.
  36. ↑ Wood, W.; Eagly, A. H. (2002). "A cross-cultural analysis of the behavior of men and women: Implications for the origins of sex differences". Psychological Bulletin. 128: 699–727. doi:10.1037/0033-2909.128.5.699. PMID 12206191.

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