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Sexual expression is fundamental to human existence and an important topic of enquiry in its own right. Understanding sexual behavior is also essential to establish effective sexual health prevention activities (e.g., education), services and policies, and to assess the progress of policies and action plans. Questions on sexual health are rarely included in general health surveys, and therefore dedicated population studies are required. Many countries lack both funding and sociopolitical support to conduct such surveys. A tradition of periodic population sexual health surveys exists in Europe but the methods used (e.g., in questionnaire construction, recruiting methods or interview format) vary from one survey to another. This is because the researchers within each country are confronted with conceptual, methodological, sociocultural and budgetary challenges, for which they find different solutions. These differences limit comparison across countries and pooling of estimates, but the variation in approaches provides a rich source of learning on population survey research. In this review, survey leads from 11 European countries discuss how their surveys evolved during the past four decades in response to sociohistorical and political context, and the challenges they encountered. The review discusses the solutions they identified and shows that it is possible to create well designed surveys which collect high quality data on a range of aspects of sexual health, despite the sensitivity of the topic. Herewith, we hope to support the research community in their perennial quest for political support and funding, and ongoing drive to advance methodology in future national sex surveys. [ABSTRACT FROM AUTHOR]

Masturbation is one of the most common sexual behaviors in humans. It is also a phylogenetically widespread trait of various other mammalian and some non-mammalian species. Several hypotheses have been proposed aiming to explain the function of masturbation in primates and other species. These were mainly based on observations of nonhuman primates such as rhesus macaques or bonobos and rodents such as African ground squirrels. Based on these observations various scholars suggested that masturbation improves ejaculate quality, decreases the risk of contracting sexually transmitted infections or is merely a by-product of sexual arousal and thus an alternate outlet to copulation. While these theories may explain some facets of masturbation in some species, they do not explain why masturbation is so widespread and has developed in various species as well as our hominid ancestors. Moreover, the research on which these theories are based is scarce and heavily focused on male masturbation, while female masturbation remains largely unexplored. This sex difference may be responsible for the one-sided theorizing that attributes a specific biological benefit to masturbation. We propose that the widespread prevalence of masturbation in the animal kingdom may be better explained by viewing masturbation as a primarily self-reinforcing behavior that promotes pleasure both in human and in nonhuman species. [ABSTRACT FROM AUTHOR]

Although online pornography use appears to be a mainstream activity, there is little information, particularly outside of the USA, about how consumers perceive its impact on their sexuality. Considering increasing concerns about pornography use, this lack of evidence has sociocultural and clinical ramifications – especially because the recently proposed Moral Incongruence model (MI) suggests that some individuals may see their pornography use as problematic independently of the frequency of use. Using data from 4,177 adults from the 2018–2019 national probability-based German Health and Sexuality Survey, we explored self-perceived impact of pornography use on personal sex life and the role of MI. Most participants (61.7%) reported no impact of pornography. Women were characterized by significantly higher odds of reporting positive relative to no impact, while men had higher odds of reporting mixed/negative compared to no impact. Participants in both the positive and the mixed impact group reported a significantly higher frequency of pornography use than participants in the no impact group. In line with the MI model, we observed a significant relationship between participants' religious upbringing and self-perceived negative (relative to mixed) impact of pornography use. Social relevance and clinical implications of the findings are discussed. [ABSTRACT FROM AUTHOR]

Closeness, in the sense of inclusion of other in the self, has been found to be an important factor for relationship well-being, satisfaction and pair-bonding. In the past ten years, the self-expansion theory has also been incorporated into sex research, although studies are still very scarce and not without limitations. The present research aimed at further elucidating the relevance of relational factors for couple's sexuality, and to clarify the role inclusion of other in the self plays for sexual satisfaction and sexual distress. A broadly representative sample of 3,046 men and women aged 18 to 75 was taken from the German Health and Sexuality Survey (GeSiD). Throughout analyses, inclusion of other in the self and love were positively related to sexual satisfaction. Furthermore, inclusion of other in the self was negatively related to how strongly someone was distressed by experiencing sexual problems. Closeness seems to have a compensatory role especially for women with sexual problems, protecting them from experiencing sexual distress. In future research, couple's sexual satisfaction should not be compartmentalized from relational aspects. Results clearly promote the Inclusion of Other in the Self Scale as an interesting tool for both research and treatment. [ABSTRACT FROM AUTHOR]

The German Health and Sexuality Survey (GeSiD) was carried out in 2018/2019 to provide up-to-date measures of sexual behavior, sexual attitudes and sexual lifestyles of the adult population. We describe the methods used in GeSiD which surveyed the general population in Germany aged 18–75 years (with oversampling of younger adults aged 18–35 years). This article focuses on study design, recruitment, and response rate and discusses the strategies implemented to enhance the response rate compared to the pilot study. Overall, 4.955 interviews were completed with a response rate of 30.2%. The data were weighted by age, gender, education, nationality, and region to reduce possible bias. Compared to the German 2018 census, the weighted sample provides good representativeness for selected respondent characteristics. The computer-assisted interviews consisted of a combination of face-to-face and self-completion components. They covered a broad perspective on sexual health, which included topics such as online sexual activities, pleasure, sexual dysfunction, and sexual violence. Reliable data on sexual and reproductive health in Germany are urgently needed for evidence-based prevention and health promotion work, to inform sexual health policy and for cross-national comparisons of the development of sexual behavior in Europe. [ABSTRACT FROM AUTHOR]

The usage of virtual reality (VR) pornography has risen in recent years. Anecdotal evidence suggests that the steep increase may be driven by an essential difference compared to traditional pornography, namely strong feelings of intimacy and the illusion of interaction with the porn actors. The present study is the first to systematically address this topic in an experimental design. Fifty healthy male participants watched two pornographic films on consecutive days in the laboratory, randomly one in VR and one traditional two-dimensional (2D) film. The perception of 2D and VR pornography was assessed using several self-report measures. Furthermore, the role of the social neuropeptide oxytocin in facilitating intimacy and interaction was studied. In the VR condition, participants felt more desired, more flirted with, more looked into the eyes. They were also more likely to feel connected with the actors and more likely to feel the urge to interact with them. Interestingly, saliva levels of oxytocin were related to the perceived eye-contact with the virtual persons indicating a role for the social neuropeptide in the perception of increased intimacy and interaction in VR. Thus, VR pornography seems to be a powerful tool to elicit the illusion of intimate sexual experiences. [ABSTRACT FROM AUTHOR]

Although eye tracking has been used for decades, it has gained popularity in the area of sex research only recently. The aim of this article is to examine the potential merits of eye tracking for this field. We present a systematic review of the current use of video-based eye-tracking technology in this area, evaluate the findings, and identify future research opportunities. A total of 34 relevant studies published between 2006 and 2014 were identified for inclusion by means of online databases and other methods. We grouped them into three main areas of research: body perception and attractiveness, forensic research, and sexual orientation. Despite the methodological and theoretical differences across the studies, eye tracking has been shown to be a promising tool for sex research. The article suggests there is much potential for further studies to employ this technique because it is noninvasive and yet still allows for the assessment of both conscious and unconscious perceptional processes. Furthermore, eye tracking can be implemented in investigations of various theoretical backgrounds, ranging from biology to the social sciences. [ABSTRACT FROM PUBLISHER]

Consistent evidence exists for sexual interest in children in nonclinical/nonforensic male populations. However, prevalences for community men's self-reported sexual interest in children have been based on indiscriminate definitions including postpubescent individuals, age-restricted samples, and/or small convenience samples. The present research assessed men's self-reported sexual interest in children (including child prostitution and child sex tourism) on the community level and examined the link between strictly defined sexual fantasies and behaviors involving prepubescent children. In an online survey of 8,718 German men, 4.1% reported sexual fantasies involving prepubescent children, 3.2% reported sexual offending against prepubescent children, and 0.1% reported a pedophilic sexual preference. Sexual fantasies involving prepubescent children were positively related to sexual offending against prepubescent children. Sexual interest in children was associated with subjectively perceived need for therapeutic help. In contrast to findings from forensic samples, men who reported child pornography use exclusively were identified as a subgroup differing from contact sexual offenders against prepubescent children and men who reported both child pornography use and contact sexual offenses against prepubescent children. The empirical link between child-related sexual fantasies and sexual victimization of prepubescent children and high levels of subjective distress from this inclination underscore the importance of evidence-based child sexual abuse prevention approaches in the community. Findings are discussed in terms of their relation to pedophilic disorder. [ABSTRACT FROM PUBLISHER]

Sexual desire is a complex construct with important implications for sexual functioning and well-being. In this research, we translated the Sexual Desire Inventory (SDI-2), a widely used scale for assessing sexual (desire), into 25 languages from English and used data from the International Sex Survey (ISS) to (a) investigate its psychometric properties (i.e. factorial structure, reliability, validity, and measurement invariance) and (b) explore the expression of sexual desire across different countries, genders, and sexual orientations. A total of 82,243 participants from 42 countries completed the SDI-2, along with other sexuality-related scales. Confirmatory factor analysis supported a three-factor solution for the SDI-2 (CFI = .980; RMSEA = .060), encompassing the domains of “Partner-related,” “Attractive-person-related,” and “Solitary” sexual desire. The reliability of the total score and subscales were excellent. Likewise, correlations with other sexuality-related variables were positive yet weak-to-moderate in effect size. Measurement invariance tests supported its use across countries, languages, genders, and sexual orientations. Analysis of SDI-2 scores according to these variables supported its ability to capture group-based differences in sexual desire. In sum, the SDI-2 constitutes a psychometrically robust measure for the assessment of sexual desire in non-clinical samples with utility in large-scale cross-cultural studies. [ABSTRACT FROM AUTHOR]

Motivations for pornography use may vary across gender identities, sexual orientations, and geographical regions, warranting examination to promote individual and public health. The aims of this study were to validate the Pornography Use Motivations Scale (PUMS) in a diverse, multicultural sample, and develop a short form (PUMS-8) that can assess a wide range of pornography use motivations. Using data from 42 countries (N = 75,117; Mage = 32.07; SDage = 12.37), enabled us to thoroughly evaluate the dimensionality, validity, and reliability of the Pornography Use Motivations Scale (PUMS), leading to the development of the more concise PUMS-8 short scale. Additionally, language-, nationality-, gender-, and sexual-orientation-based measurement invariance tests were conducted to test the comparability across groups. Both the PUMS and the PUMS-8 assess eight pornography use motivations, and both demonstrated excellent psychometric properties. Sexual Pleasure emerged as the most frequent motivation for pornography use across countries, genders, and sexual orientations, while differences were observed concerning other motivations (e.g. self-exploration was more prevalent among gender-diverse individuals than men or women). The motivational background of pornography use showed high similarity in the examined countries. Both the PUMS and the PUMS-8 are reliable and valid measurement tools to assess different types of motivations for pornography use across countries, genders, and sexual orientations. Both scales are recommended for use in research and clinical settings. [ABSTRACT FROM AUTHOR]