bims-chumac Biomed News
on Context effects on human mate choice
Issue of 2022–12–18
six papers selected by
Thomas Krichel, Open Library Society



  1. Int J Environ Res Public Health. 2022 Nov 25. pii: 15659. [Epub ahead of print]19(23):
      Little research has been focused on offline or online infidelity in GL dating relationships, especially in a post-communist socio-cultural context. Infidelity-related (IR) behaviors on social media sites might be as hurtful to relationships as offline infidelity, both in gay, lesbian (GL) and heterosexual romantic monogamous relationships. In this cross-sectional study, we aimed to examine the associations between dyadic satisfaction, attitudes toward infidelity, and problematic internet usage, with IR behaviors on social media sites among GL and heterosexual unmarried individuals in Romanian sexual minority communities. Results showed that GL respondents did not significantly differ from heterosexual participants regarding IR behaviors. Furthermore, we found the main effect of attitudes toward infidelity and problematic internet use on IR behaviors. Sexual orientation highlights the main effect of IR behaviors when analyzed with dyadic satisfaction. The current study may be a precursor to further research investigating correlations in online IR behavior among lesbian and gay individuals engaging in consensual nonmonogamy. Implications of the findings are discussed in the social context of a post-communist country where GL individuals may face discrimination and stigma because of their sexual orientation.
    Keywords:  dyadic satisfaction; gay; lesbian; online infidelity; same-sex couples
    DOI:  https://doi.org/10.3390/ijerph192315659
  2. Am J Orthod Dentofacial Orthop. 2022 Dec 12. pii: S0889-5406(22)00737-5. [Epub ahead of print]
       INTRODUCTION: This research aimed to determine the nonlinear correlation between lateral cephalometric measurements and facial attractiveness, evaluated in the frontal and profile views. A quadratic correlation was studied, in which the vertex of the function indicates the cephalometric value corresponding to the maximum attractiveness.
    METHODS: Frontal and profile facial attractiveness of 60 patients with Class I (n = 20), Class II (n = 20), or Class III malocclusion (n = 20) aged 18-35 years without previous orthodontic treatment was evaluated by 14 laypersons (7 men and 7 women) with a visual analog scale. Soft- and hard-tissue measurements were collected on lateral cephalometric radiographs. Pearson and nonlinear quadratic correlations between the attractiveness of the face and cephalometric measurements were calculated. Maximum attractiveness values (MxAt) were determined for the significant cephalometric variables.
    RESULTS: Significant quadratic correlations were found between frontal facial attractiveness and the following variables: Ls-SnPog' (r = 0.45; MxAt = 3.1 mm), Li-SnPog' (r = 0.41; MxAt = 3.8 mm), the ANB angle (r = 0.42; MxAt = 0.2°) and MPA (r = 0.51; MxAt = 31.9°). Profile attractiveness correlated nonlinearly with Ls-SnPog' (r = 0.42; MxAt = 3.2 mm), Li-SnPog' (r = 0.41; MxAt = 3.9 mm) and MPA (r = 0.46; MxAt = 32.4°).
    CONCLUSIONS: Significant quadratic correlations were found between facial attractiveness and cephalometric measurements, which were stronger than linear correlations. The maximum attractiveness points indicated a tendency for laypeople to consider a more protrusive lower lip and an ANB angle lower than the norm as the most attractive.
    DOI:  https://doi.org/10.1016/j.ajodo.2021.12.025
  3. Eur J Popul. 2022 Dec;38(5): 975-1008
      In France, as in other European countries, the age at first cohabiting union has risen over the past decades, as a result of longer school enrolment, structural economic changes, and new family norms. While the median age at first co-resident couple was 23.8 for men born in France in the beginning of the 1950s, it was 26.0 among the generation born in the beginning of the 1970s. This tendency is often referred to as a postponement of couple formation and as a part of a broader delay in the transition to adulthood. This article argues, on the contrary, that couple formation has not been postponed but prolonged. In fact, age at first couple formation has remained stable across generations born since the mid-twentieth century in France. Starting from there, we take on a biographical approach to examine the nature, duration, and articulation of the successive stages that make up young people's conjugal trajectories in France. What are the different pathways into couple life, and how have these changed over time? In order to answer these questions, we use optimal matching methods to identify ideal typical trajectories and then logistic regressions in order to see how these relate to generational differences as well as sociodemographic characteristics. We observe three traditional, three timeless and five new paths to couple life. The main historical change is the increasingly gradual nature of union formation, a trend that reflects a dual pattern. First, unions are progressively institutionalized: the time laps between different relationship stages, such as "going out," "settling in," and eventually marrying, have expanded. Second, young people increasingly experience several relationships during youth: the different steps of couple formation are taken with different partners. We conclude that couple formation is not delayed per se; it is rather the material and institutional formalization of unions that is put off for the future. We discuss the scientific and methodological implications of this finding.
    Supplementary Information: The online version contains supplementary material available at 10.1007/s10680-022-09629-0.
    Keywords:  Couple formation; France; Optimal matching analysis; Transition to adulthood; Youth
    DOI:  https://doi.org/10.1007/s10680-022-09629-0
  4. Int J Environ Res Public Health. 2022 Dec 04. pii: 16211. [Epub ahead of print]19(23):
      People's attachment styles play a fundamental role in shaping their intimate relationships. Anxiously attached individuals have a strong need for closeness but a poor ability to obtain the closeness they seek. In contrast, people high in avoidance tend to avoid intimacy in close relationships. Dyadic coping can strengthen the bond between partners, and develop empathy, commitment, sensitivity, and responsiveness to the partner's needs, which may be the basis of shaping intimacy and closeness. The effects of attachment on relational intimacy were examined, using the actor-partner interdependence model and data from 144 heterosexual couples, aged 26 to 60. Both partners completed measures of attachment, intimacy as a relationship satisfaction dimension, and dyadic coping. The results showed that men's attachment-related avoidance is related to their own intimacy; also, the avoidant attachment of both spouses is related to each other's intimacy. The effect of having children on intimacy was significant for men; the effect of financial situation on intimacy was significant for women. Moreover, problem-focused common dyadic coping appeared to have a significant moderating effect on the relationship between attachment-related avoidance and intimacy. Adult attachment and dyadic coping significantly contributed to partners' relational intimacy.
    Keywords:  actor–partner interdependence model; attachment; common dyadic coping; intimacy; relationship satisfaction
    DOI:  https://doi.org/10.3390/ijerph192316211
  5. Eur J Popul. 2022 Dec;38(5): 861-883
      In this paper, we explore the patterns of assortative mating among college-educated women who graduated from typically female, typically male, or mixed disciplines. Using a set of cross-sectional observations of a single cohort of female graduates (2010) from European Union Labour Force Survey data and applying multilevel multinomial logit models, we estimated the relative risk of living with a college-educated partner (homogamy), living with less educated partner (hypogamy), or being single. Focusing on the first five years after graduation, the analysis demonstrated that field of study is a significant predictor of mating behaviour. Women with degrees in male-dominated fields are less likely to partner down with less educated men. The mating advantage of women from male-dominated fields is stronger in countries with a higher female employment rate. Furthermore, more liberal gender roles seem to increase the level of singlehood among women from male-dominated fields. Finally, women from female-dominated and mixed disciplines are more likely to partner down if the man graduated from a male-typical discipline. However, among women from male-dominated disciplines, such a trade-off was not observed.
    Supplementary Information: The online version contains supplementary material available at 10.1007/s10680-022-09621-8.
    Keywords:  Assortative mating, homogamy; Education; Family; Gender; Union formation
    DOI:  https://doi.org/10.1007/s10680-022-09621-8
  6. Cult Health Sex. 2022 Dec 17. 1-16
      Intimacy has been identified as an important component of satisfying sexual activity in later life. While the existing literature reports that the importance of intimacy increases with age, the mechanisms behind this process have not been extensively researched. Even less is known about later-life sexual intimacy among women and men from former communist countries. This study explored the nuances of sex and intimacy by interviewing 50 Polish and Czech women and men aged 60 to 82. Data were analysed thematically using an inductive approach. Three main themes were developed to represent the extent to which intimacy was part of participants' lives: 1) lifelong representation of sex as an intimate connection between individuals; 2) later-life shift towards intimacy-oriented sex for two main reasons: health-related necessities and a new relationship context; and 3) no intimacy whatsoever. The study findings indicate that a later-life refocus from an instrumental, penetrative-oriented view of sex towards a wider variety of intimate behaviours may be beneficial, not only for improving quality of sexual life, but also to gain new ways to express emotional connections between the partners.
    Keywords:  Czech Republic; Poland; cross-cultural; intimacy; older adults
    DOI:  https://doi.org/10.1080/13691058.2022.2155708