AI Article Synopsis
- Personality traits like neuroticism and extraversion are linked to reproductive success (LRS) in humans, implying possible evolutionary pressures.
- A study using a large twin dataset from Finland found no significant correlation between neuroticism and LRS, while extraversion was positively related to LRS, particularly in men.
- The genetic analysis revealed a greater impact of extraversion on selection responses compared to the phenotypic analysis, suggesting the need for a deeper examination of both genetic factors and how different personality traits interact for understanding evolutionary changes.
Article Abstract
Personality has been associated with reproductive success in humans and other animals, suggesting potential evolutionary selection pressures. However, studies to date have only examined these associations on a phenotypic level, which may be inadequate in estimating evolutionary change. Using a large longitudinal twin dataset of contemporary Finns, we compared the phenotypic (breeder's equation) and genetically informed (the Robertson-Price identity) associations between lifetime reproductive success (LRS) and two personality traits-neuroticism and extraversion. Neuroticism was not associated with LRS at the phenotypic nor genetic level, while extraversion was associated with higher LRS in men both phenotypically and genetically. Compared to the univariate phenotypic analysis, the genetic analysis suggested a larger selection response of extraversion, and a selection response of neuroticism due to indirect selection. We estimated that neuroticism decreases by .05 standard deviations and extraversion increases by .11 standard deviations by one generation. Our results highlight the importance of considering genetic associations between personality and fitness and investigating several inter-related personality traits and their covariance with each other to predict responses to selection more accurately.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s10519-016-9803-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effects of variable mating opportunity, delay, and male mating experience on the lifespan, female reproductive traits, and offspring traits of Phytoseiulus persimilis (Acari: Phytoseiidae).
Exp Appl Acarol
January 2025
Manaaki Whenua - Landcare Research, 231 Morrin Road, Auckland, 1072, New Zealand.
The balance between mating benefits and costs shapes reproductive strategies and life history traits across animal species. For biological control programs, understanding how mating rates influence life history traits is essential for optimising population management and enhancing predator efficacy. This study investigates the impact of mating opportunity availability, delayed mating, and male mating history (copulation frequency) on the lifespan (both sexes), female reproductive traits (duration of oviposition and of pre- and post-oviposition periods, and lifetime oviposition), and offspring quality (egg size and offspring survival) of the predatory mite Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae), an important biological control agent against spider mites.
View Article and Find Full Text PDFAging women in Russia: Between sexless and sexy oldies.
J Women Aging
January 2025
Department of Sociology, European University at St. Petersburg, St Petersburg, Russia.
Women's sexuality as a dimension of embodied identity is shaped and constrained by social norms of gender and age and negotiated by women in complex ways. Discourses of hegemonic bodily normativity ascribe a sexless subjectivity to Russian women in their post-reproductive years, contributing to their social exclusion. At the same time, in modern Russian society a neoliberal concept of "successful active aging" is gradually changing understandings of aging, making later-life sexuality more visible and legitimate.
View Article and Find Full Text PDFNavigating the practical challenges and ethical dilemmas of surplus cryopreserved human embryos.
Syst Biol Reprod Med
December 2025
College of Medicine, Department of Basic Sciences, Roseman University of Health Sciences, Las Vegas, NV, USA.
Cryopreservation, the use of very low temperatures to preserve structurally intact living cells and tissues, has seen exponential growth in the field of fertilization (IVF). In the last decade, cryopreservation of embryos and freeze-all protocols have become an essential aspect and a prerequisite for a successful IVF outcome. Moreover, vitrification, which is a fast and safe cryopreservation method, has proved to be an effective choice for cryopreserving gametes and embryos.
View Article and Find Full Text PDFAssessing Willingness to Pay for IVF Among Infertile Women in Greece: A Single-Center Case Study.
Health Sci Rep
January 2025
Healthcare Management Program, School of Social Sciences Hellenic Open University Patras Greece.
Background And Aims: In recent years, In Vitro fertilization (IVF) science has grown by leaps and bounds in the field of assisted reproduction, helping millions of couples worldwide. The aim of this study is to examine the extent to which infertile women are willing to pay for IVF services in Greece.
Methods: Through the distribution of questionnaires, willingness to pay (WTP) is recorded according to IVF success rates, and the relationship between WTP and the respondents' demographic characteristics is analyzed.
Activation of Proteolysis During Oocyte In Vitro Maturation.
Mol Reprod Dev
January 2025
Liv Hospital, Centre for Regenerative Medicine and Stem Cell Manufacturing (LivMedCell), İstanbul, Turkey.
In vitro maturation (IVM) is a form of assisted reproductive technology (ART) applied to obtain mature oocytes in culture. Decline in IVM success rates by age has led consideration of novel approaches based on cellular dynamics. Our aim was to achieve proteostasis in old bovine oocytes from 13 to 16-year-old bovine with a lower potential for fertilization.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!