bims-chumac Biomed News
on Context effects on human mate choice
Issue of 2021–05–02
four papers selected by
Thomas Krichel, Open Library Society



  1. Front Psychol. 2021 ;12 592138
      Sugar relationships can be considered contemporary forms of transactional sex, that is, offering sexual services for material resources or other benefits. Considering the common age differences in these relationships, sugar relationships might be of relevance for older adults as well on the mating market. As a sequel to Birkás et al. (2020), in the present study, an attitude scale was developed to assess older women's and men's acceptance of sugar relationships. We also explored whether the acceptance of sugar relationships was associated with love styles, sociosexual orientation, sexual motivation, and certain socially aversive personality traits. In two online studies with a total number of 836 participants (N = 277 women and 559 men), the results showed that the Acceptance of Sugar Relationships in Older Men and Women Scale (ASR-OMWS) proved to be a reliable and conceptually valid measure of older individuals' attitude toward sugar relationships. A more accepting attitude toward sugar relationships was found to be associated with more unrestricted sociosexuality, preference to engage in playful love relationships and more self-focused sexual motivation (study 1; N = 481, 167 women and 314 men), and with more pronounced Dark Triad and borderline traits (study 2; N = 355, 110 women and 245 men). Our findings are discussed in an evolutionary framework.
    Keywords:  acceptance of sugar relationships; personality correlates; scale development; transactional sex; validation
    DOI:  https://doi.org/10.3389/fpsyg.2021.592138
  2. Front Psychol. 2021 ;12 573123
      Romantic love is a phenomenon of immense interest to the general public as well as to scholars in several disciplines. It is known to be present in almost all human societies and has been studied from a number of perspectives. In this integrative review, we bring together what is known about romantic love using Tinbergen's "four questions" framework originating from evolutionary biology. Under the first question, related to mechanisms, we show that it is caused by social, psychological mate choice, genetic, neural, and endocrine mechanisms. The mechanisms regulating psychopathology, cognitive biases, and animal models provide further insights into the mechanisms that regulate romantic love. Under the second question, related to development, we show that romantic love exists across the human lifespan in both sexes. We summarize what is known about its development and the internal and external factors that influence it. We consider cross-cultural perspectives and raise the issue of evolutionary mismatch. Under the third question, related to function, we discuss the fitness-relevant benefits and costs of romantic love with reference to mate choice, courtship, sex, and pair-bonding. We outline three possible selective pressures and contend that romantic love is a suite of adaptions and by-products. Under the fourth question, related to phylogeny, we summarize theories of romantic love's evolutionary history and show that romantic love probably evolved in concert with pair-bonds in our recent ancestors. We describe the mammalian antecedents to romantic love and the contribution of genes and culture to the expression of modern romantic love. We advance four potential scenarios for the evolution of romantic love. We conclude by summarizing what Tinbergen's four questions tell us, highlighting outstanding questions as avenues of potential future research, and suggesting a novel ethologically informed working definition to accommodate the multi-faceted understanding of romantic love advanced in this review.
    Keywords:  Tinbergen; definition; functions; human mating; mechanisms; ontogeny; phylogeny; romantic love
    DOI:  https://doi.org/10.3389/fpsyg.2021.573123
  3. Arch Sex Behav. 2021 Apr 27.
      Although sexual experiences are normative by young adulthood, individuals continue to explore and develop their sexual behaviors and cognitions across the college years. Thus, perceived consequences of sexual experiences may change. Similarly, characteristics of sexual experiences such as partner type, alcohol use, and sexual behavior type predict perceived consequences, and these associations may change over time. In this study, we addressed links between characteristics of sexual experiences (casual vs. committed partner, heavy alcohol use on sex days, and kissing/touching only vs. oral/penetrative sex) and short-term perceived consequences of sexual experiences (physical satisfaction, emotional intimacy, not satisfied, guilt, not ready), using daily data collected longitudinally across seven college semesters. We also examined whether perceived consequences of sex change across college and whether within-person daily associations between sexual experience characteristics and perceived consequences of sex change across college. An ethnically and racially diverse sample of traditionally aged first year university students (N = 566; 54% female; 98% heterosexual) completed online surveys, yielding 8,838 daily reports about sexual behaviors. Multilevel models indicated that partner type, heavy alcohol use, and sexual behavior type predicted within-person differences in perceived consequences of sex. Interactions between characteristics of sexual experiences and college semester indicated that differences in perceived consequences of sexual experiences with casual versus committed partners lessened over time. The likelihood of reporting physical satisfaction and guilt after only kissing/touching (but not oral/penetrative sex) decreased across college semesters. Findings inform understanding of normative sexual development by demonstrating that perceived consequences and their predictors change across time.
    Keywords:  Alcohol; Casual sex; Normative sexual development; Sexual behavior
    DOI:  https://doi.org/10.1007/s10508-020-01874-w
  4. Int J Environ Res Public Health. 2021 Apr 24. pii: 4533. [Epub ahead of print]18(9):
      Body height is considered to be one of the most important reproductive signals. However, there are only a few publications on what influences the sense of whether we assess ourselves as tall or short. In the present contribution, the psychological impact of money on the evaluation of a person's own height was tested. We performed two experimental studies in which the respondents had contact with different amounts of money and were asked to evaluate their body height with the use of a laser pointer. The first experiment (N = 61) showed that contact with money significantly increased subjective height evaluation, and the effect was independent of participants' real body height. The second experiment (N = 120) replicated the effect of money manipulation. Moreover, it was shown that higher amounts of money increased one's own height estimation more than smaller amounts. Our research shows that money can be used for building one's social position, which is an attractiveness signal that can influence one's own height evaluation.
    Keywords:  body height; height estimation; money impact
    DOI:  https://doi.org/10.3390/ijerph18094533