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Endocrine Correlates of Social Comparison in Couple Relationships

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Abstract

Objectives

This study employed an experimental design that induced social comparison in couples by systematically varying performance feedback in a manipulated pretend IQ test.

Methods

Sixty-two heterosexual couples were randomly assigned to four experimental groups, in which either the man (1) or the woman (2) was provided with superior feedback and compared to couples which received equal feedback (3) or no feedback (4). The biopsychological responses were assessed using repeated measures of mood, levels of the gonadal hormones testosterone (T) and estradiol (E2), and the stress hormone cortisol (C) in both partners.

Results

Compared to the men, the entire female sample responded to the test with a decrease in T. Women who received superior feedback showed a unique endocrine profile, characterized by an immediate increase in E2 and a delayed decrease in T. In contrast to men, women’s mood decreased in all conditions except for the superior feedback.

Conclusions

Our results indicate that women may be physiologically and subjectively more strongly affected by comparison processes with their partners in the dimension of skills and achievement. Moreover, our findings are the first to show that in romantic relationships, the endocrine correlates of social comparison may include an intriguing interplay between the steroid hormones T and E2, but not C.

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Acknowledgements

We wish to thank Firouzeh Farahmand for performing the hormone analyses and all the master students for their assistance in collecting the data.

Funding

This work was supported by Stiftung für Wissenschaftliche Forschung at the University of Zurich, Switzerland to UE and JC. The sponsor was not involved in designing the study or in any further step of data collection.

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Correspondence to Ulrike Ehlert.

Ethics declarations

The authors declare that all procedures contributing to this work comply with the laws of the country in which it was performed. The study was approved by the relevant institutional Ethics committee and complies with the principles of the 1964 Helsinki Declaration and its later amendments. All participants provided informed consent before their inclusion in the study. The authors state that they do not have financial relationships with the organizations that sponsored the research. The authors also state that they have full control of all primary data and that they agree to allow the journal to review their data if requested.

Conflict of Interest

The authors declare that they have no conflict of interest.

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Campbell, J., Fiacco, S., Ditzen, B. et al. Endocrine Correlates of Social Comparison in Couple Relationships. Adaptive Human Behavior and Physiology 5, 187–210 (2019). https://doi.org/10.1007/s40750-019-00112-5

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  • DOI: https://doi.org/10.1007/s40750-019-00112-5

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