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→Symmetry is universally beautiful and leads to more sexual partners: expanded section
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<div class="navbar" style="padding-left: 4px; margin-top: 3px; background: #EAEAEA; color: #555; border-top: 2px solid #444; border-bottom: 1px solid #444; font-size: 13px">[[#tocFace|Category: Face]] | [[#tocSymmetry_is_universally_beautiful_and_leads_to_more_sexual_partners|table of contents]]</div> | <div class="navbar" style="padding-left: 4px; margin-top: 3px; background: #EAEAEA; color: #555; border-top: 2px solid #444; border-bottom: 1px solid #444; font-size: 13px">[[#tocFace|Category: Face]] | [[#tocSymmetry_is_universally_beautiful_and_leads_to_more_sexual_partners|table of contents]]</div> | ||
Gangestad & Thornhill conducted a study on Extra-Pair Copulations (i.e. infidelity). Among other things, they found evidence that men with lower fluctuating asymmetry (FAI) (i.e. more symmetrical males), which is considered an indicator of developmental stability, were more likely to be chosen as EPC partners by women, implying that women were more willing to choose them as casual sex partners. | |||
An earlier study by the same authors also found a significant negative correlation between FAI and lifelong sex partner count (i.e. more symmetrical males reported more female sex partners). | |||
Controlling for facial attractiveness and other potential confounds, the correlation between FAI and partner count was still significant (partial r = -.47). | |||
Rhodes G (2006), conducting a meta-analysis on the relationship between facial attractiveness and symmetry, found strong evidence of a general trend towards symmetry being correlated with facial attractiveness, and this relationship was not fully explained by symmetrical faces being more "average" (i.e. a face that has proportions close to the mathematical average of a population, which is also associated with attractiveness, not a 50th percentile attractiveness or "average looking" face). | |||
<span style="font-size:125%">'''Quotes:'''</span> | |||
* ''As can be seen, men's FA remained a significant predictor of their number of EPC partners, beta = -. 17, t(164) = 2.27, p < .05. No other variables predicted men's number of EPC partners at the .05 level of significance.'' (Gangestad & Thornhill, 1997). | |||
* ''Subtle, heritable asymmetries in seven nonfacial human body traits correlated negatively with number of self-reported, lifetime sex partners and correlated positively with self-reported age at first copulation in a college student sample These relationships remained statistically significant when age, marital status, body height, ethnicity, physical anomalies associated with early prenatal development, and physical attractiveness were statistically controlled.'' (Thornhill & Gangestad, 1994). | |||
* ''Converging evidence for the appeal of facial symmetry comes from studies withnormal faces. Natural variations in symmetry covary with attractiveness (Jones &Hill 1993,for some ethnic groups; Grammer & Thornhill 1994; Mealey et al. 1999; Rikowski & Grammer 1999; Rhodes et al. 1998, 1999a,b; Scheib et al. 1999; Zebrowitz et al. 1996). Symmetry remains attractive when the effects of averageness are statistically controlled, which suggests that the two contribute independently to attractiveness (Rhodes et al. 1999b).'' | |||
<span style="font-size:125%">'''References:'''</span> | |||
* Rhodes, G. ''The Evolutionary Psychology of Facial Beauty.'' Annu. Psychol, 57:199-226. [[https://www.annualreviews.org/article/suppl/10.1146/annurev.psych.57.102904.190208/suppl_file/ps.57.rhodes.appendix2.pdf FullText]] [[https://www.ncbi.nlm.nih.gov/pubmed/16318594 Abstract]] | |||
* Gangestad SW, Thornhill R. 1997. ''The evolutionary psychology of extrapair sex: The role of fluctuating asymmetry''. Evolution and Human Behavior 18(2):69-88.[[https://www.sciencedirect.com/science/article/abs/pii/S1090513897000032 Abstract]] | |||
* Thornhill R, Gangestad SW. 1994. ''Human Fluctuating Asymmetry and Sexual Behavior''. Psychological Science 5(5):297-302. [[https://journals.sagepub.com/doi/10.1111/j.1467-9280.1994.tb00629.x#articleCitationDownloadContainer Abstract]] | |||
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