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Updated: Jun 8, 2025

Assessment of Sexual Behavior of Male Mice
Published on: March 5, 2020
Relationship Status Rather than Sociosexuality or Sexual Orientation Predicts Male Sexual Functioning
Maria Luíza R S de Souza1, Adna J Silva2, Jaroslava Varella Valentova3
1Departamento de Processos Psicológicos Básicos, Graduate Program in Behavioral Sciences, Instituto de Psicologia, Universidade de Brasília, Asa Norte, 70.910-900, Brasília, DF, Brasil.
Partnered men report better sexual functioning than single men, particularly in arousal, erection, orgasm, and satisfaction. Sexual strategies and orientation showed weaker associations, suggesting sexual function supports relationship maintenance.
Area of Science:
- Evolutionary Psychology
- Human Sexuality
- Reproductive Health
Background:
- Male sexual functioning is vital for reproduction and social bonding.
- Previous research indicates partnered individuals exhibit superior sexual function compared to single individuals.
- The impact of short-term casual sexual strategies and sexual orientation on male sexual functioning remains less understood.
Purpose of the Study:
- To investigate the associations between male sexual functioning and sexual strategies, including sociosexuality, relationship status, and sexual orientation.
- To test the hypothesis that stable relationships and sociosexuality positively correlate with male sexual functioning.
- To explore differences in sexual functioning across various sexual orientations.
Main Methods:
- Surveyed 427 healthy men across different sexual orientations (heterosexual, bisexual, gay).
- Utilized the Male Sexual Function Index (MSFI) to assess desire, arousal, erection, orgasm, and satisfaction.
- Employed the Sociosexual Orientation Inventory-Revised and sociodemographic questions to measure sexual strategies and relationship status.
Main Results:
- Partnered men reported significantly higher scores on MSFI-arousal, MSFI-erection, MSFI-orgasm, and MSFI-satisfaction compared to single men.
- Sociosexuality and sexual orientation demonstrated only a weak predictive relationship with MSFI domains.
- Male sexual functioning appears moderately linked to long-term mating strategies.
Conclusions:
- Male sexual functioning is more strongly associated with relationship maintenance than with acquiring new partners.
- Partnered status is a significant predictor of enhanced male sexual functioning.
- Further research may explore the nuanced interplay between sexual strategies, orientation, and reproductive success.
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