Thermal signatures of human pheromones in sexual and reproductive behaviour

Chemically mediated sexual communication in humans has been largely neglected due to its non-conscious and relatively concealed nature. However, menstrual cycle synchronisation, puberty onset in young pre-pubertal girls exposed to their stepfather, and consanguinity avoidance suggest a function in the physiological regulation of sexual and reproductive behaviour in humans. These phenomena are related to activation of the limbic system by pheromones. On the basis of sexually dimorphic activation of brain hypothalamic areas and the control of body temperature via the hypothalamus, our hypothesis is that human sexual pheromones can induce thermal effects that can be revealed by high-resolution thermal infrared imaging. Here we show that in women, male sexual pheromones induce thermal effects that are linked to the ovarian cycle. These findings suggest a dramatic influence of pheromones on human sexual and reproductive behaviour through neuroendocrine brain control, established on the plesiomorphic nature of chemical communication across species

Harmful or helpful : perceived solicitous and facilitative partner responses are differentially associated with pain and sexual satisfaction in women with provoked vestibulodynia

Introduction.  Provoked vestibulodynia (PVD) is a highly prevalent vulvovaginal pain condition that negatively affects women's emotional, sexual, and relationship well-being. Recent studies have investigated the role of interpersonal variables, including partner responses. Aim.  We examined whether solicitous and facilitative partner responses were differentially associated with vulvovaginal pain and sexual satisfaction in women with PVD by examining each predictor while controlling for the other. Methods.  One hundred twenty-one women (M age = 30.60, SD = 10.53) with PVD or self-reported symptoms of PVD completed the solicitous subscale of the spouse response scale of the Multidimensional Pain Inventory, and the facilitative subscale of the Spouse Response Inventory. Participants also completed measures of pain, sexual function, sexual satisfaction, trait anxiety, and avoidance of pain and sexual behaviors (referred to as “avoidance”). Main Outcome Measures.  Dependent measures were the (i) Pain Rating Index of the McGill Pain Questionnaire with reference to pain during vaginal intercourse and (ii) Global Measure of Sexual Satisfaction Scale. Results.  Controlling for trait anxiety and avoidance, higher solicitous partner responses were associated with higher vulvovaginal pain intensity (β = 0.20, P = 0.03), and higher facilitative partner responses were associated with lower pain intensity (β = −0.20, P = 0.04). Controlling for sexual function, trait anxiety, and avoidance, higher facilitative partner responses were associated with higher sexual satisfaction (β = 0.15, P = 0.05). Conclusions.  Findings suggest that facilitative partner responses may aid in alleviating vulvovaginal pain and improving sexual satisfaction, whereas solicitous partner responses may contribute to greater pain

Sexual communal motivation in couples coping with low sexual interest/arousal: Associations with sexual well-being and sexual goals

Women coping with female sexual interest/arousal disorder (FSIAD) report lower sexual and relationship satisfaction compared to healthy controls. In community samples, high sexual communal strength (i.e., the motivation to meet a partner’s sexual needs) is associated with higher sexual desire and satisfaction, but high unmitigated sexual communion (i.e., the prioritization of a partner’s needs to the exclusion of one’s own needs) is associated with lower sexual satisfaction. People higher in sexual communal strength report engaging in sex for approach goals (i.e., to enhance intimacy in their relationship), but not for avoidance goals (i.e., to avert conflict or a partner’s disappointment) and this is one reason why they report greater sexual desire. In the current sample of 97 women diagnosed with FSIAD and their partners we investigated the association between sexual communal strength and unmitigated sexual communion and sexual well-being (i.e., sexual desire, sexual satisfaction and sexual distress) and sexual goals (i.e., approach and avoidance goals). Women who reported higher sexual communal strength were more likely to pursue sex for approach goals and their partner reported greater sexual satisfaction. When partners reported higher sexual communal strength, they reported higher sexual desire, but when they reported higher unmitigated sexual communion, they reported higher sexual distress. Additional associations emerged for couples who engage in sex more (compared to less) frequently. Our findings demonstrate that being motivated to meet a partner’s sexual needs is associated with greater sexual well-being for couples coping with FSIAD, but when this motivation involves neglecting one’s own needs, people do not report greater sexual well-being and instead, partners report higher sexual distress.York University Librarie

Is the Relationship Between Pathogen Avoidance and Ideological Conservatism Explained by Sexual Strategies?

Multiple recent studies report that measures of pathogen avoidance (e.g., disgust sensitivity) correlate with political ideology. This relationship has been interpreted as suggesting that certain political views (specifically, those views that are categorized as socially conservative) function to mitigate the pathogen threats posed either by intergroup interactions or by departures from traditional societal norms, which sometimes evolve culturally for anti-pathogen functions. We propose and test the alternative hypothesis that pathogen avoidance relates to conservatism indirectly via sexual strategies (e.g., relatively monogamous versus relatively promiscuous). Specifically, we argue that individuals who are more invested in avoiding pathogens follow a more monogamous mating strategy to mitigate against pathogens transmitted during sexual contact, and individuals following a more monogamous mating strategy adopt socially conservative political ideologies to support their reproductive interests. Results from three studies ( N's = 819, 238, and 248) using multiple measures of pathogen avoidance, sexual strategies, and ideology support this account, with sexual strategies fully mediating the relationship between measures of pathogen avoidance and conservatism in each study

Should I Say Something? Dating and Sexual Aggression Bystander Intervention Among High School Youth

Using data from a sample of 218 high school youth from three high schools in New England (one rural, two urban), this brief discusses dating and sexual aggression bystander intervention among high school youth. Authors Katie Edwards, Robert Eckstein, and Kara Anne Rodenhizer-Stämpfli report that an overwhelming majority (93.6 percent) of high school students reported having the opportunity to intervene during the past year in situations of dating aggression or sexual aggression; however, in over one-third of the episodes (37.4 percent) students reported not intervening. Girls were more likely to intervene in situations of dating and sexual aggression than boys, and youth with histories of dating and sexual aggression were more likely to intervene than youth without these histories. Focus group data revealed that barriers to bystander intervention included avoidance of drama or a desire to fuel drama, social status and personal repercussions, closeness with the victim and/or perpetrator, the victim being male and the perpetrator female, the failure of the dating or sexual aggression to meet a certain threshold, the dating and sexual aggression occurring online, anticipated negative reactions from the perpetrator or victim, and an inability to relate to the situation. Given the mounting evidence that bystander education is a critical component of dat­ing and sexual aggression prevention, the authors urge policy makers and educators to enhance the presence of this type of education in high school health curricula and related course curricula

Sexual function in 16- to 21-year-olds in Britain

Purpose: Concern about young people's sexuality is focused on the need to prevent harmful outcomes such as sexually transmitted infections and unplanned pregnancy. Although the benefit of a broader perspective is recognized, data on other aspects of sexuality, particularly sexual function, are scant. We sought to address this gap by measuring the population prevalence of sexual function problems, help seeking, and avoidance of sex in young people. Methods: A cross-sectional stratified probability sample survey (Natsal-3) of 15,162 women and men in Britain (response rate: 57.7%), using computer-assisted self-interviews. Data come from 1875 (71.9%) sexually active, and 517 sexually inactive (18.7%), participants aged 16–21 years. Measures were single items from a validated measure of sexual function (the Natsal-SF). Results: Among sexually active 16- to 21-year-old participants, 9.1% of men and 13.4% of women reported a distressing sexual problem lasting 3 months or more in the last year. Most common among men was reaching a climax too quickly (4.5%), and among women was difficulty in reaching climax (6.3%). Just over a third (35.5%) of men and 42.3% of women reporting a problem had sought help, but rarely from professional sources. Among those who had not had sex in the last year, just >10% of young men and women said they had avoided sex because of sexual difficulties. Conclusions: Distressing sexual function problems are reported by a sizeable minority of sexually active young people. Education is required, and counseling should be available, to prevent lack of knowledge, anxiety, and shame progressing into lifelong sexual difficulties

Intercourse Avoidance among Women with Coronary Artery Disease

Introduction Avoidance of sexual intercourse has not been frequently studied among patients with chronic medical conditions and patients with coronary artery disease ( CAD ) are not exception. Aim We aimed to (i) compare intercourse avoidance during the past 2 weeks among women with CAD and healthy controls; and (ii) to determine factors associated with intercourse avoidance during the past 2 weeks among women with CAD . Methods This study was conducted in an outpatient cardiology clinic in T ehran, I ran. The study included 152 married women with CAD and 50 controls. Socio‐demographic and clinical data including the severity of angina ( WHO R ose Q uestionnaire), risk factors (cigarette smoking, hyperlipidemia, diabetes, and obesity), fatigue, physical function (visual analogue scale [ VAS ]) and somatic comorbidities [ I fudu index], symptoms of anxiety and depression ( H ospital A nxiety and D epression S cale [ HADS ]), and dyadic adjustment ( R evised‐ D yadic A djustment S cale [ R ‐ DAS ]) were considered as independent variables. Logistic regression was used to determine predictors of sexual avoidance during the past 2 weeks. Main Outcome Measures The main outcome was intercourse avoidance over a 2‐week period, measured by the R elation and S exuality S cale ( RSS ). Result Avoidance of intercourse during the past 2 weeks was higher among women with CAD than controls (73.0% vs. 56%, P  = 0.024). According to the logistic regression, intercourse avoidance was positively associated with age (Odds ratio [ OR ] = 1.127, 95% confidence interval [ CI ] = 1.073, 1.185), somatic comorbidities ( OR  = 1.137, 95% CI  = 1.061, 1.218) and depressive symptoms ( OR  = 1.150, 95% CI  = 1.022, 1.293). Conclusion Our study suggests that among women with CAD , age, depressive symptoms and somatic comorbidities are associated with avoidance of intercourse. As having intercourse is safe among patients with stable CAD , all health professionals should discuss sexual behaviors with their female CAD patients, especially those that are older, with higher depressive symptoms or multiple comorbidities so as to allay fears about sexual functioning. Assari S . Intercourse avoidance among women with coronary artery disease. J Sex Med 2014;11:1709–1716.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/108106/1/jsm12459.pd

Mutual grooming in cucujoid beetles (Coleoptera: Silvanidae)

Mutual grooming in two genera of silvanid beetles is described, and appears to be the first report of this behavior in the order Coleoptera. In Uleiota debilis (LeConte), allogrooming recipients were either stationary or moved away during the acts, without solicitation or facilitation. In Nausibius major Zimmermann, allogrooming was much more extensive and the individual being groomed appeared to facilitate the process by immobility or by changes in posture, there were no recognizable sexual overtones, no solicitations, and no avoidance movements. Gregarious behaviors of some other silvanid beetles are reviewed

Evolution of precopulatory and post-copulatory strategies of inbreeding avoidance and associated polyandry

Acknowledgments This work was funded by a European Research Council Starting Grant to JMR. Computer simulations were performed using the Maxwell Computing Cluster at the University of Aberdeen. We thank Matthew E. Wolak and two anonymous reviewers for very helpful comments.Peer reviewedPublisher PD