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Visualizing Facial Shape Regression upon 2nd to 4th Digit Ratio and Testosterone
Fred L. Bookstein
APA 6th Edition
Schaefer, K., Fink, B., Mitteroecker, P., Neave, N. i Bookstein, F.L. (2005). Visualizing Facial Shape Regression upon 2nd to 4th Digit Ratio and Testosterone. Collegium antropologicum, 29 (2), 415-419. Preuzeto s https://hrcak.srce.hr/5212
MLA 8th Edition
Schaefer, Katrin, et al. "Visualizing Facial Shape Regression upon 2nd to 4th Digit Ratio and Testosterone." Collegium antropologicum, vol. 29, br. 2, 2005, str. 415-419. https://hrcak.srce.hr/5212. Citirano 25.09.2022.
Chicago 17th Edition
Schaefer, Katrin, Bernhard Fink, Philipp Mitteroecker, Nick Neave i Fred L. Bookstein. "Visualizing Facial Shape Regression upon 2nd to 4th Digit Ratio and Testosterone." Collegium antropologicum 29, br. 2 (2005): 415-419. https://hrcak.srce.hr/5212
Schaefer, K., et al. (2005). 'Visualizing Facial Shape Regression upon 2nd to 4th Digit Ratio and Testosterone', Collegium antropologicum, 29(2), str. 415-419. Preuzeto s: https://hrcak.srce.hr/5212 (Datum pristupa: 25.09.2022.)
Schaefer K, Fink B, Mitteroecker P, Neave N, Bookstein FL. Visualizing Facial Shape Regression upon 2nd to 4th Digit Ratio and Testosterone. Collegium antropologicum [Internet]. 2005 [pristupljeno 25.09.2022.];29(2):415-419. Dostupno na: https://hrcak.srce.hr/5212
K. Schaefer, B. Fink, P. Mitteroecker, N. Neave i F.L. Bookstein, "Visualizing Facial Shape Regression upon 2nd to 4th Digit Ratio and Testosterone", Collegium antropologicum, vol.29, br. 2, str. 415-419, 2005. [Online]. Dostupno na: https://hrcak.srce.hr/5212. [Citirano: 25.09.2022.]
Sex steroids are supposed to moderate the differences between male and female facial characteristics. Studies on women’s preferences for male faces reported increased preferences for facial architecture developed under the influence of testosterone as this may indicate masculinity, dominance and social status. Recent research demonstrates that facial sexual dimorphism does not only develop at puberty but may be organized much earlier in ontogeny. However, the actual cause and timing of variation in facial shape due to sex-steroids remains speculative. This study uses data from Neave and colleagues1 who measured digit ratio (2D:4D) as a proxy to prenatal testosterone and also salivary testosterone samples in order to study differential effects of androgens on perceived male facial shape. Male facial shape was regressed upon 2D:4D ratio and circulating levels of testosterone by means of geometric morphometric methods. We found some evidence for opposite effects of early androgen action (via 2D:4D ratio) on the upper and the lower face respectively (i.e. low 2D:4D ratio results in a relatively robust and prominent lower face), whereas circulating testosterone seems to cause a rather uniform elongation of the face. Local deformations primarily show pronounced and medially tailed eyebrows for the shapes associated with increasing salivary testosterone. These preliminary results suggest that prenatal and pubertal testosterone have differential effects on male facial shape that should be considered in future studies on women’s preferences towards male facial appearance.
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