Understanding the mechanisms behind the sexualized-body inversion hypothesis: The role of asymmetry and attention biases

PLoS One. 2018 Apr 5;13(4):e0193944. doi: 10.1371/journal.pone.0193944. eCollection 2018.

Abstract

A controversial hypothesis, named the Sexualized Body Inversion Hypothesis (SBIH), claims similar visual processing of sexually objectified women (i.e., with a focus on the sexual body parts) and inanimate objects as indicated by an absence of the inversion effect for both type of stimuli. The current study aims at shedding light into the mechanisms behind the SBIH in a series of 4 experiments. Using a modified version of Bernard et al.´s (2012) visual-matching task, first we tested the core assumption of the SBIH, namely that a similar processing style occurs for sexualized human bodies and objects. In Experiments 1 and 2 a non-sexualized (personalized) condition plus two object-control conditions (mannequins, and houses) were included in the experimental design. Results showed an inversion effect for images of personalized women and mannequins, but not for sexualized women and houses. Second, we explored whether this effect was driven by differences in stimulus asymmetry, by testing the mediating and moderating role of this visual feature. In Experiment 3, we provided the first evidence that not only the sexual attributes of the images but also additional perceptual features of the stimuli, such as their asymmetry, played a moderating role in shaping the inversion effect. Lastly, we investigated the strategy adopted in the visual-matching task by tracking eye movements of the participants. Results of Experiment 4 suggest an association between a specific pattern of visual exploration of the images and the presence of the inversion effect. Findings are discussed with respect to the literature on sexual objectification.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Attention*
  • Female
  • Human Body*
  • Humans
  • Male
  • Models, Psychological*
  • Photic Stimulation
  • Sexual Behavior / psychology*
  • Young Adult

Grants and funding

This work is supported by PRIN (2012)-20123X2PXT grant to AC and GS and the Austrian Science Fund (FWF; project P27355) to HL. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.