Sexual selection and the origins of human mating systems. Oxford: Oxford University Press.ĭixson, A. Primate sexuality: comparative studies of the prosimians, monkeys, apes, and human beings. Men perceive their female partners, and themselves, as more attractive around ovulation. The effect of hypothalamic lesions on sexual behavior and estrous cycles in the ewe. Ventromedial hypothalamic damage and sexual proceptivity in female rats. ‘Concealed ovulation’ and sexual signals in primates. Sexual differentiation of human behavior: effects of prenatal and pubertal organizational hormones. Sexual attractivity, proceptivity, and receptivity in female mammals. Neuron activity of the ventromedial hypothalamus and the medial preoptic area of the female monkey during sexual behavior. This paper argues that the attractiveness of women in lordotic posture is due to a conserved mechanism across the taxa which signals proceptivity to men.Īou, S., Oomura, Y., & Yoshimatsu, H. Additionally, as the curvature increased, participants looked longer and fixated more on the hip region of the female bodies. Specifically, the result showed that there is a relationship between the range of the back curvatures used in this study and attractiveness, such that increasing the curvature increased the perception of attractiveness. The result showed that small changes in lumbar curvature are associated with changes in the perception of attractiveness. In this study, participants were presented with computer-generated images of female bodies in which the back curvature was systematically manipulated. In humans, this posture may serve a similar function, attracting heterosexual men. In some non-human animals, a “lordotic” posture (in which the lower spine is curved towards the belly) is associated in females with readiness to mate. One way in which posture can vary is in the curvature of the lower spine. However, it is unlikely that humans adopt neutral expressions and postures in normal social circumstances. It is common in studies of human mate preference to have participants judge the attractiveness of photographs in which models adopt a neutral facial expression or a neutral body posture.
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