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Arching the Back (Lumbar Curvature) as a Female Sexual Proceptivity Signal: an Eye-Tracking Study
University of Minho, Portugal.
Stillwater, USA.
Linnaeus University, Faculty of Health and Life Sciences, Department of Medicine and Optometry. University of Minho, Portugal.ORCID iD: 0000-0003-3436-2010
University of Minho, Portugal.
2018 (English)In: Evolutionary Psychological Science, ISSN 2198-9885, Vol. 4, no 2, p. 158-165Article in journal (Refereed) Published
Abstract [en]

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. However, it is unlikely that humans adopt neutral expressions and postures in normal social circumstances. One way in which posture can vary is in the curvature of the lower spine. 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. In humans, this posture may serve a similar function, attracting heterosexual men. In this study, participants were presented with computer-generated images of female bodies in which the back curvature was systematically manipulated. The result showed that small changes in lumbar curvature are associated with changes in the perception of attractiveness. 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. Additionally, as the curvature increased, participants looked longer and fixated more on the hip region of the female bodies. 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.

Place, publisher, year, edition, pages
Springer, 2018. Vol. 4, no 2, p. 158-165
Keywords [en]
Lumbar curvature; Lordosis; Proceptive behavior; Receptivity; Sexual behavior; Eye tracking
National Category
Psychology
Research subject
Natural Science, Optometry; Social Sciences, Psychology
Identifiers
URN: urn:nbn:se:lnu:diva-68606DOI: 10.1007/s40806-017-0123-7OAI: oai:DiVA.org:lnu-68606DiVA, id: diva2:1154753
Available from: 2017-11-03 Created: 2017-11-03 Last updated: 2018-05-14Bibliographically approved

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Macedo, António Filipe

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • asciidoc
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