How Oral Contraceptives Affect Women's Odour Preferences
Author Information
Author(s): Roberts S. Craig, Gosling L. Morris, Carter Vaughan, Petrie Marion
Primary Institution: University of Newcastle
Hypothesis
Does the use of oral contraceptives alter women's preferences for male body odour based on MHC similarity?
Conclusion
The study found that contraceptive pill use shifts women's odour preferences towards MHC similarity, which may disrupt adaptive mate preferences.
Supporting Evidence
- Women using the pill showed a significant preference shift towards MHC similarity.
- Single women preferred odours of MHC-similar men, while women in relationships preferred MHC-dissimilar men.
- The study design was based on previous research that indicated MHC influences mate choice.
Takeaway
Women on the pill might like the smell of men who are more genetically similar to them, which could affect who they choose as partners.
Methodology
The study used a longitudinal design comparing odour preferences of women before and after starting the pill, with a control group of non-users.
Potential Biases
Potential bias due to self-selection of participants into pill and control groups.
Limitations
The study's sample was limited to women aged 18-35, and the pill-using group was relatively small.
Participant Demographics
Women aged 18-35, mostly students or staff at Newcastle University.
Statistical Information
P-Value
p=0.034
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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