Displaying publications 1 - 20 of 317 in total

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  1. Fulltext Current Fertility Status Does Not Predict Sociosexual Attitudes and Desires in Normally Ovulating Women
    Thomas AG, Armstrong SL, Stewart-Williams S, Jones BC
    Evol Psychol, 2021;19(1):1474704920976318.
    PMID: 33412934 DOI: 10.1177/1474704920976318
    Previous research has found that women at peak fertility show greater interest in extra-pair sex. However, recent replications have failed to detect this effect. In this study, we add to this ongoing debate by testing whether sociosexuality (the willingness to have sex in the absence of commitment) is higher in women who are at peak fertility. A sample of normally ovulating women (N = 773) completed a measure of sociosexuality and had their current fertility status estimated using the backward counting method. Contrary to our hypothesis, current fertility was unrelated to sociosexual attitudes and desires, even when relationship status was included as a moderator. These findings raise further doubts about the association between fertility and desire for extra-pair sex.
    Matched MeSH terms: Sexual Behavior*
  2. Fulltext Exploring Attitudes Toward "Sugar Relationships" Across 87 Countries: A Global Perspective on Exchanges of Resources for Sex and Companionship
    Meskó N, Kowal M, Láng A, Kocsor F, Bandi SA, Putz A, et al.
    Arch Sex Behav, 2024 Feb;53(2):811-837.
    PMID: 38127113 DOI: 10.1007/s10508-023-02724-1
    The current study investigates attitudes toward one form of sex for resources: the so-called sugar relationships, which often involve exchanges of resources for sex and/or companionship. The present study examined associations among attitudes toward sugar relationships and relevant variables (e.g., sex, sociosexuality, gender inequality, parasitic exposure) in 69,924 participants across 87 countries. Two self-report measures of Acceptance of Sugar Relationships (ASR) developed for younger companion providers (ASR-YWMS) and older resource providers (ASR-OMWS) were translated into 37 languages. We tested cross-sex and cross-linguistic construct equivalence, cross-cultural invariance in sex differences, and the importance of the hypothetical predictors of ASR. Both measures showed adequate psychometric properties in all languages (except the Persian version of ASR-YWMS). Results partially supported our hypotheses and were consistent with previous theoretical considerations and empirical evidence on human mating. For example, at the individual level, sociosexual orientation, traditional gender roles, and pathogen prevalence were significant predictors of both ASR-YWMS and ASR-OMWS. At the country level, gender inequality and parasite stress positively predicted the ASR-YWMS. However, being a woman negatively predicted the ASR-OMWS, but positively predicted the ASR-YWMS. At country-level, ingroup favoritism and parasite stress positively predicted the ASR-OMWS. Furthermore, significant cross-subregional differences were found in the openness to sugar relationships (both ASR-YWMS and ASR-OMWS scores) across subregions. Finally, significant differences were found between ASR-YWMS and ASR-OMWS when compared in each subregion. The ASR-YWMS was significantly higher than the ASR-OMWS in all subregions, except for Northern Africa and Western Asia.
    Matched MeSH terms: Sexual Behavior*
  3. Brain size evolution in pipefishes and seahorses: the role of feeding ecology, life history and sexual selection
    Tsuboi M, Lim AC, Ooi BL, Yip MY, Chong VC, Ahnesjö I, et al.
    J Evol Biol, 2017 Jan;30(1):150-160.
    PMID: 27748990 DOI: 10.1111/jeb.12995
    Brain size varies greatly at all taxonomic levels. Feeding ecology, life history and sexual selection have been proposed as key components in generating contemporary diversity in brain size across vertebrates. Analyses of brain size evolution have, however, been limited to lineages where males predominantly compete for mating and females choose mates. Here, we present the first original data set of brain sizes in pipefishes and seahorses (Syngnathidae) a group in which intense female mating competition occurs in many species. After controlling for the effect of shared ancestry and overall body size, brain size was positively correlated with relative snout length. Moreover, we found that females, on average, had 4.3% heavier brains than males and that polyandrous species demonstrated more pronounced (11.7%) female-biased brain size dimorphism. Our results suggest that adaptations for feeding on mobile prey items and sexual selection in females are important factors in brain size evolution of pipefishes and seahorses. Most importantly, our study supports the idea that sexual selection plays a major role in brain size evolution, regardless of on which sex sexual selection acts stronger.
    Matched MeSH terms: Sexual Behavior; Sexual Behavior, Animal*
  4. Fulltext Sexual activities of Malaysian adolescents
    Zulkifli SN, Low WY, Yusof K
    Med J Malaysia, 1995 Mar;50(1):4-10.
    PMID: 7752975
    This paper examines data on the sexual activities of 1,200 Malaysian adolescents aged 15-21 years based on a probability household sampled survey carried out in Kuala Lumpur in 1986. Sexual behaviours like premarital sexual intercourse, contraceptive usage and masturbation were presented. Of the 1,181 unmarried respondents, 9% (105) reported having had sexual intercourse; males were significantly more experienced compared to females. Older age groups were also found to be more sexually active than the younger ones. Among those who had experience dating (n = 521), 20% (105) have experienced sexual intercourse, 44% (228) have kissed and necked, and 35% (183) have experienced petting, while 24% (130) have had no physical intimacies. Poor use of contraception was also revealed. The most commonly used were condoms, oral contraceptives and withdrawal. With regard to masturbation, males begin this practice relatively earlier than females. Almost half of those who indulged in masturbation were worried by the act, especially the females. Implications of the findings are discussed.
    Matched MeSH terms: Sexual Behavior*
  5. Fulltext Sexuality and sexual problems in the Malaysian context
    Deva MP
    Med J Malaysia, 1995 Mar;50(1):1-3.
    PMID: 7752959
    Matched MeSH terms: Sexual Behavior*
  6. Unusual mating behavior of the Malaysian treefrogs, Polypedates leucomystax
    Feng AS, Narins PM
    Naturwissenschaften, 1992 Mar;79(3):138-9.
    PMID: 1574131
    Matched MeSH terms: Sexual Behavior, Animal*
  7. Reactions to male-favouring versus female-favouring sex differences: A pre-registered experiment and Southeast Asian replication
    Stewart-Williams S, Chang CYM, Wong XL, Blackburn JD, Thomas AG
    Br J Psychol, 2021 May;112(2):389-411.
    PMID: 32701171 DOI: 10.1111/bjop.12463
    Two studies investigated (1) how people react to research describing a sex difference, depending on whether that difference favours males or females, and (2) how accurately people can predict how the average man and woman will react. In Study 1, Western participants (N = 492) viewed a fictional popular-science article describing either a male-favouring or a female-favouring sex difference (i.e., men/women draw better; women/men lie more). Both sexes reacted less positively to the male-favouring differences, judging the findings to be less important, less credible, and more offensive, harmful, and upsetting. Participants predicted that the average man and woman would react more positively to sex differences favouring their own sex. This was true of the average woman, although the level of own-sex favouritism was lower than participants predicted. It was not true, however, of the average man, who - like the average woman - reacted more positively to the female-favouring differences. Study 2 replicated these findings in a Southeast Asian sample (N = 336). Our results are consistent with the idea that both sexes are more protective of women than men, but that both exaggerate the level of same-sex favouritism within each sex - a misconception that could potentially harm relations between the sexes.
    Matched MeSH terms: Sexual Behavior*
  8. A psychosexual study of abortion - seeking behaviour
    Vachher M, Yusof K
    Med J Malaysia, 1978 Sep;33(1):50-6.
    PMID: 750897
    Matched MeSH terms: Sexual Behavior*
  9. Sex Differences in Mate Preferences Across 45 Countries: A Large-Scale Replication
    Walter KV, Conroy-Beam D, Buss DM, Asao K, Sorokowska A, Sorokowski P, et al.
    Psychol Sci, 2020 Apr;31(4):408-423.
    PMID: 32196435 DOI: 10.1177/0956797620904154
    Considerable research has examined human mate preferences across cultures, finding universal sex differences in preferences for attractiveness and resources as well as sources of systematic cultural variation. Two competing perspectives-an evolutionary psychological perspective and a biosocial role perspective-offer alternative explanations for these findings. However, the original data on which each perspective relies are decades old, and the literature is fraught with conflicting methods, analyses, results, and conclusions. Using a new 45-country sample (N = 14,399), we attempted to replicate classic studies and test both the evolutionary and biosocial role perspectives. Support for universal sex differences in preferences remains robust: Men, more than women, prefer attractive, young mates, and women, more than men, prefer older mates with financial prospects. Cross-culturally, both sexes have mates closer to their own ages as gender equality increases. Beyond age of partner, neither pathogen prevalence nor gender equality robustly predicted sex differences or preferences across countries.
    Matched MeSH terms: Sexual Behavior/psychology
  10. Assessing Gender Identity and Sex in Diverse Low-, Middle-, and High-Income Settings: Findings from a WHO/HRP Consultative Process
    Tucker JD, Bajos N, Mercer CH, Gitau E, Ahmad NA, Gonsalves L
    Sex Transm Dis, 2022 Feb 01;49(2):e42-e44.
    PMID: 34321451 DOI: 10.1097/OLQ.0000000000001525
    Obtaining detailed data on gender identity and sex in population-based sexual health studies is important. We convened a group to develop consensus survey items. We identified 2 items to capture data on gender identity and sex that can be used in diverse settings.
    Matched MeSH terms: Sexual Behavior*
  11. Problematic pornography use across countries, genders, and sexual orientations: Insights from the International Sex Survey and comparison of different assessment tools
    Bőthe B, Nagy L, Koós M, Demetrovics Z, Potenza MN, International Sex Survey Consortium, et al.
    Addiction, 2024 May;119(5):928-950.
    PMID: 38413365 DOI: 10.1111/add.16431
    BACKGROUND AND AIMS: Problematic pornography use (PPU) is a common manifestation of the newly introduced Compulsive Sexual Behavior Disorder diagnosis in the 11th edition of the International Statistical Classification of Diseases and Related Health Problems. Although cultural, gender- and sexual orientation-related differences in sexual behaviors are well documented, there is a relative absence of data on PPU outside Western countries and among women as well as gender- and sexually-diverse individuals. We addressed these gaps by (a) validating the long and short versions of the Problematic Pornography Consumption Scale (PPCS and PPCS-6, respectively) and the Brief Pornography Screen (BPS) and (b) measuring PPU risk across diverse populations.

    METHODS: Using data from the pre-registered International Sex Survey [n = 82 243; mean age (Mage) = 32.4 years, standard deviation = 12.5], a study across 42 countries from five continents, we evaluated the psychometric properties (i.e. factor structure, measurement invariance, and reliability) of the PPCS, PPCS-6, and BPS and examined their associations with relevant correlates (e.g. treatment-seeking). We also compared PPU risk among diverse groups (e.g. three genders).

    RESULTS: The PPCS, PPCS-6, and BPS demonstrated excellent psychometric properties [for example, comparative fit index = 0.985, Tucker-Lewis Index = 0.981, root mean square error of approximation = 0.060 (90% confidence interval = 0.059-0.060)] in the confirmatory factor analysis, with all PPCS' inter-factor correlations positive and strong (rs = 0.72-0.96). A total of 3.2% of participants were at risk of experiencing PPU (PPU+) based on the PPCS, with significant country- and gender-based differences (e.g. men reported the highest levels of PPU). No sexual orientation-based differences were observed. Only 4-10% of individuals in the PPU+ group had ever sought treatment for PPU, while an additional 21-37% wanted to, but did not do so for specific reasons (e.g. unaffordability).

    CONCLUSIONS: This study validated three measures to assess the severity of problematic pornography use across languages, countries, genders, and sexual orientations in 26 languages: the Problematic Pornography Consumption Scale (PPCS, and PPCS-6, respectively), and the Brief Pornography Screen (BPS). The problematic pornography use risk is estimated to be 3.2-16.6% of the population of 42 countries, and varies among different groups (e.g. genders) and based on the measure used.

    Matched MeSH terms: Sexual Behavior*
  12. Fulltext Validation of the Short Version (TLS-15) of the Triangular Love Scale (TLS-45) across 37 Languages
    Kowal M, Sorokowski P, Dinić BM, Pisanski K, Gjoneska B, Frederick DA, et al.
    Arch Sex Behav, 2024 Feb;53(2):839-857.
    PMID: 37884798 DOI: 10.1007/s10508-023-02702-7
    Love is a phenomenon that occurs across the world and affects many aspects of human life, including the choice of, and process of bonding with, a romantic partner. Thus, developing a reliable and valid measure of love experiences is crucial. One of the most popular tools to quantify love is Sternberg's 45-item Triangular Love Scale (TLS-45), which measures three love components: intimacy, passion, and commitment. However, our literature review reveals that most studies (64%) use a broad variety of shortened versions of the TLS-45. Here, aiming to achieve scientific consensus and improve the reliability, comparability, and generalizability of results across studies, we developed a short version of the scale-the TLS-15-comprised of 15 items with 5-point, rather than 9-point, response scales. In Study 1 (N = 7,332), we re-analyzed secondary data from a large-scale multinational study that validated the original TLS-45 to establish whether the scale could be truncated. In Study 2 (N = 307), we provided evidence for the three-factor structure of the TLS-15 and its reliability. Study 3 (N = 413) confirmed convergent validity and test-retest stability of the TLS-15. Study 4 (N = 60,311) presented a large-scale validation across 37 linguistic versions of the TLS-15 on a cross-cultural sample spanning every continent of the globe. The overall results provide support for the reliability, validity, and cross-cultural invariance of the TLS-15, which can be used as a measure of love components-either separately or jointly as a three-factor measure.
    Matched MeSH terms: Sexual Behavior*
  13. A new species of Amalothrips Ananthakhrishnan from Malaysia, with first description of male
    Ng YF
    Zootaxa, 2015;4032(2):246-50.
    PMID: 26624359 DOI: 10.11646/zootaxa.4032.2.13
    Amalothrips noorazlani sp. n. is described from Malaysia based on both sexes, and a key is provided to the species of this genus. This is the first record of Amalothrips species outside India, and the first description of a male Amalothrips. The male has a pair of drepanae, the tergal posteromargin bears a toothed craspedum, but there are no sternal pore plates.
    Matched MeSH terms: Sexual Behavior
  14. Morphological analysis of various rugae patterns among Dravidian population
    Selvamani M, Bindiya PK, Bhojaraju N, Bastian TS, Suhana HS, Mathew M
    J Oral Maxillofac Pathol, 2019 9 14;23(2):295-299.
    PMID: 31516240 DOI: 10.4103/jomfp.JOMFP_277_18
    Aim: The aim of this study was to analyze and identify differences in the palatal rugae patterns and genderwise distributions in three different populations (Kerala, Mahe and Puducherry).

    Materials and Methods: Ninety maxillary study models (30 from each group including males and females) were examined in the age group ranging from 18 to 25 years. The palatal rugae pattern was analyzed for shape.

    Results: After analyzing the rugae patterns among the groups, the most common pattern was the wavy pattern (53.57%) followed by curved (18.22%) and straight (13.66%). The least was circular (1.3%). When compared between sex, the most common pattern was found to be wavy (male - 54.3% and female - 53.09%), while the curved pattern was more common among the females (21.09%) than males (13.97%). The straight pattern was more common among the males (18.8%) than females (10.18%). The least common pattern was found to be the circular in both sexes which accounted for around 1%.

    Conclusion: This study shows no two palates are identical in terms of their rugae pattern. Palatal rugae possess unique characteristics as they are absolutely individualistic. Study also confirms that the "wavy" type of palatal rugae pattern was the most predominant among these three populations.

    Matched MeSH terms: Sexual Behavior
  15. Fulltext ‘Pinky' tooth: a rare faces of delayed tooth eruption
    Wan Noor Rabiatul Akmalia Wan Abd Razak, Yushaini Ahmad
    International Medical Journal Malaysia, 2017;16(21):22-22.
    MyJurnal
    Delayed tooth eruption (DTE) is the emergence of a tooth into oral cavity that
    deviates from norms established for different races, ethnics and sexes, which commonly caused
    either by local or systemic conditions. (Copied from article).
    Matched MeSH terms: Sexual Behavior
  16. Fulltext Therapeutic Effects of Vitamin D on Vaginal, Sexual, and Urological Functions in Postmenopausal Women
    Hassanein MM, Huri HZ, Abduelkarem AR, Baig K
    Nutrients, 2023 Aug 30;15(17).
    PMID: 37686835 DOI: 10.3390/nu15173804
    Recent years have witnessed the emergence of growing evidence concerning vitamin D's potential role in women's health, specifically in postmenopausal women. This evidence also includes its connection to various genitourinary disorders and symptoms. Numerous clinical studies have observed improvements in vulvovaginal symptoms linked to the genitourinary syndrome of menopause (GSM) with vitamin D supplementation. These studies have reported positive effects on various aspects, such as vaginal pH, dryness, sexual functioning, reduced libido, and decreased urinary tract infections. Many mechanisms underlying these pharmacological effects have since been proposed. Vitamin D receptors (VDRs) have been identified as a major contributor to its effects. It is now well known that VDRs are expressed in the superficial layers of the urogenital organs. Additionally, vitamin D plays a crucial role in supporting immune function and modulating the body's defense mechanisms. However, the characterization of these effects requires more investigation. Reviewing existing evidence regarding vitamin D's impact on postmenopausal women's vaginal, sexual, and urological health is the purpose of this article. As research in this area continues, there is a potential for vitamin D to support women's urogenital and sexual health during the menopausal transition and postmenopausal periods.
    Matched MeSH terms: Sexual Behavior
  17. Modernization, collectivism, and gender equality predict love experiences in 45 countries
    Sorokowski P, Kowal M, Sternberg RJ, Aavik T, Akello G, Alhabahba MM, et al.
    Sci Rep, 2023 Jan 14;13(1):773.
    PMID: 36641519 DOI: 10.1038/s41598-022-26663-4
    Recent cross-cultural and neuro-hormonal investigations have suggested that love is a near universal phenomenon that has a biological background. Therefore, the remaining important question is not whether love exists worldwide but which cultural, social, or environmental factors influence experiences and expressions of love. In the present study, we explored whether countries' modernization indexes are related to love experiences measured by three subscales (passion, intimacy, commitment) of the Triangular Love Scale. Analyzing data from 9474 individuals from 45 countries, we tested for relationships with country-level predictors, namely, modernization proxies (i.e., Human Development Index, World Modernization Index, Gender Inequality Index), collectivism, and average annual temperatures. We found that mean levels of love (especially intimacy) were higher in countries with higher modernization proxies, collectivism, and average annual temperatures. In conclusion, our results grant some support to the hypothesis that modernization processes might influence love experiences.
    Matched MeSH terms: Sexual Behavior
  18. Fulltext What is the current evidence for the relationship between the climate and environmental crises and child marriage? A scoping review
    Pope DH, McMullen H, Baschieri A, Philipose A, Udeh C, Diallo J, et al.
    Glob Public Health, 2023 Jan;18(1):2095655.
    PMID: 36403290 DOI: 10.1080/17441692.2022.2095655
    Environmental crises such as climate change threaten the realisation of sexual and reproductive health and rights. In this scoping review, we examine the evidence for the relationship between environmental crises and child marriage. We conducted a search of Google Scholar, Scopus and MedLine from their origin to 4th June 2021 for both peer-reviewed academic literature and 'grey' literature. A total of 24 relevant articles were identified, including both quantitative and qualitative work. while there are limitations of the current evidence base such as its narrow geographical scope, we find that environmental crises worsen known drivers of child marriage, pushing families to marry their daughters early through loss of assets and opportunities for income generation, displacement of people from their homes, educational disruption, and the creation of settings in which sexual violence and the fear of sexual violence increase. Local socio-cultural contexts such as bride price or dowry practices further shape how these factors affect child marriage. Given many of the areas with the highest current rates of child marriage face the gravest environmental threats, action to tackle child marriage must take account of the link identified in this review.
    Matched MeSH terms: Sexual Behavior
  19. The global prevalence of sexual dysfunction in women with multiple sclerosis: a systematic review and meta-analysis
    Salari N, Hasheminezhad R, Abdolmaleki A, Kiaei A, Razazian N, Shohaimi S, et al.
    Neurol Sci, 2023 Jan;44(1):59-66.
    PMID: 36114398 DOI: 10.1007/s10072-022-06406-z
    BACKGROUND: Sexual function is often impaired following neurological disorders such as multiple sclerosis (MS). Young women with MS encourage disruptions in sexual function, sexual behaviors, and family formation as common global problems. Thus, the aim of the present systematic review and meta-analysis study was to investigate the global prevalence of female sexual dysfunction (FSD) worldwide.

    METHODS: Various databases (PubMed, Scopus, Web of Science, Embase, and ScienceDirect) along with Google Scholar search engine were hired for systematic searching in the field of the prevalence of FSD (by July 2022). The heterogeneity of the studies was assessed using I2 index, and random effects model was used to perform the analysis (CMA software, v.2).

    RESULTS: Following assessment of 14 included studies with the sample size of 2115 women, a total prevalence of sexual dysfunction (SD) in women with MS was reported 62.5% (95% CI 53.9-70.5). Meta-regression assessment also showed that FSD accelerates following increasing the sample size and the year of the studies.

    CONCLUSION: The total prevalence of SD in women with MS was found considerably high (62.5%) in the world, which needs more serious attention by health policymakers. Correct implementation of health policies can potentially increase the society's awareness and successful treatment of SD in MS patients.

    Matched MeSH terms: Sexual Behavior
  20. "Comfort women" in Malaysia
    Nakahira M
    Crit Asian Stud, 2001;33(4):581-89.
    PMID: 21046839 DOI: 10.1080/146727101760107442
    Matched MeSH terms: Sexual Behavior/ethnology; Sexual Behavior/history; Sexual Behavior/physiology; Sexual Behavior/psychology
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