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Sexual attraction

Zhongzhen Wu, Jintian Lin, He Zhang, Xinnian Zeng
The oriental fruit fly, Bactrocera dorsalis (Diptera: Tephritidae), is one of the most destructive pests throughout tropical and subtropical regions in Asia. This insect displays remarkable changes during different developmental phases in olfactory behavior between sexually immature and mated adults. The olfactory behavioral changes provide clues to examine physiological and molecular bases of olfactory perception in this insect. We comparatively analyzed behavioral and neuronal responses of B. dorsalis adults to attractant semiochemicals, and the expression profiles of antenna chemosensory genes...
2016: Frontiers in Physiology
Louise M Alissa, Danilo G Muniz, Glauco Machado
When there is a temporal trade-off between mating effort and parental care, theoretical models predict that intense sexual selection on males leads to reduced paternal care. Thus, high-quality males should invest more in mating effort because they have higher chances of acquiring mates, whereas low-quality males should bias their investment toward parental care. Once paternal care has evolved, offspring value should also influence males' decisions to invest in offspring attendance. Here we performed a manipulation under field conditions to investigate the factors that influence male allocation in either mating effort or parental care...
October 18, 2016: Journal of Evolutionary Biology
Richard Lemke, Mathias Weber
This study investigates how men who have sex with men (MSM) use chat and dating sites based on theories of stigma-related offline behavior and online self-disclosure. We hypothesize that hidden MSM (those who self-label as heterosexual or who hide their same-sex sexual attraction from family, friends, acquaintances, or a female romantic partner) differ to open MSM in how they behave on gay chat and dating sites and in offline gay venues. Drawing on a survey of 12,002 MSM, we show that hidden MSM tend to mask their identity on gay chat and dating sites while avoiding offline gay venues...
October 18, 2016: Journal of Homosexuality
Paul Rohde, Eric Stice, Jeff M Gau
OBJECTIVE: The study aimed to identify variables that predicted persistence versus desistence of eating disorder-related compensatory behaviors in a high-risk factor sample of women who reported repeated compensatory behaviors at baseline. Data came from a randomized trial evaluating two brief obesity prevention interventions for college students with weight concerns. METHOD: Two hundred and sixty one young women (Mean age = 19.1, 79% European American) with weight concerns were randomly assigned to one of two brief obesity prevention interventions or educational video control...
October 18, 2016: International Journal of Eating Disorders
Teresa A Treat, Erin K Church, Richard J Viken
Contemporary models of male-initiated sexual aggression toward female acquaintances implicate misperception of women's sexual interest. This study investigated the effects of gender, rape-supportive attitudes and an instructional manipulation on college students' sexual-interest judgments. Two hundred seventy-six women and 220 men judged the cues of momentary sexual interest expressed by photographed women; half received instruction on the differential validity of nonverbal cues of sexual interest for estimation of women's momentary sexual interest...
October 17, 2016: Psychonomic Bulletin & Review
Justin K Mogilski, Lisa L M Welling
Sexual dimorphism, symmetry, and coloration in human faces putatively signal information relevant to mate selection and reproduction. Although the independent contributions of these characteristics to judgments of attractiveness are well established, relatively few studies have examined whether individuals prioritize certain features over others. Here, participants (N = 542, 315 female) ranked six sets of facial photographs (3 male, 3 female) by their preference for starting long- and short-term romantic relationships with each person depicted...
October 17, 2016: Human Nature: An Interdisciplinary Biosocial Perspective
Ritch C Savin-Williams, Brian M Cash, Mark McCormack, Gerulf Rieger
This exploratory study assessed physiological, behavioral, and self-report measures of sexual and romantic indicators of sexual orientation identities among young men (mean age = 21.9 years) with predominant same-sex sexual and romantic interests: those who described themselves as bisexual leaning gay (n = 11), mostly gay (n = 17), and gay (n = 47). Although they were not significantly distinguishable based on physiological (pupil dilation) responses to nude stimuli, on behavioral and self-report measures a descending linear trend toward the less preferred sex (female) was significant regarding sexual attraction, fantasy, genital contact, infatuation, romantic relationship, sex appeal, and gazing time to the porn stimuli...
October 17, 2016: Archives of Sexual Behavior
Even J Lanseng
This research investigates differences in men's and women's attitudes toward ads featuring product-relevant sex appeals. It is found that women, but not men, were more negative toward an ad featuring an attractive opposite-sex model when their commitment thoughts were heightened. Women were also more negative toward an ad with an attractive same-sex model in the presence of commitment thoughts, but only when they scored high on sociosexuality. Men appeared unaffected, regardless of their level of sociosexuality...
2016: Frontiers in Psychology
J Michael Bailey, Paula A Bernhard, Kevin J Hsu
We conducted an Internet survey of 1,102 men sexually attracted to children concerning their history of adjudicated offenses related to child pornography and sexual contact with children. Most of the men reported no offenses, but their rate of offenses was much higher than that expected for adult-attracted men. Correlates of offending are consistent with a strong role of the cumulative effects of temptation, especially age. Older men, men who had repeatedly worked in jobs with children, men who had repeatedly fallen in love with children, and men who had often struggled not to offend were especially likely to have offended...
October 2016: Journal of Abnormal Psychology
J Michael Bailey, Kevin J Hsu, Paula A Bernhard
To our knowledge, this is the first large study of the attractions of child-attracted men recruited in any manner other than their being charged with legal offenses. We recruited 1,189 men from websites for adults attracted to children. Men in our sample were highly attracted to children, and they were much less attracted to adults, especially to adult men. However, men varied with respect to which combination of gender and age they found most attractive. Men in our sample were especially attracted to pubescent boys and prepubescent girls...
October 2016: Journal of Abnormal Psychology
Richard A Lippa
Recent research has documented large and robust sex differences in the category specificity of self-reported sexual attraction and viewing times to men and women, with men showing more polarized responses to the two sexes than women. However, this research has been limited by the use of small and restricted samples. To address this, the current study assessed a representative sample of more than 2800 U.S. adults on demographic and attitudinal variables and on two measures of category specificity: one based on self-reported sexual attraction and the other based on viewing times to male and female swimsuit models...
October 11, 2016: Archives of Sexual Behavior
Brian Skinner
Same-sex sexual behaviour is ubiquitous in the animal kingdom, but its adaptive origins remain a prominent puzzle. Here, I suggest the possibility that same-sex sexual behaviour arises as a consequence of the competition between an evolutionary drive for a wide diversity in traits, which improves the adaptability of a population, and a drive for sexual dichotomization of traits, which promotes opposite-sex attraction and increases the rate of reproduction. This trade-off is explored via a simple mathematical 'toy model'...
September 2016: Royal Society Open Science
Fotini A Koutroumpa, Astrid T Groot, Teun Dekker, David G Heckel
The sexual pheromone communication system of moths is a model system for studies of the evolution of reproductive isolation. Females emit a blend of volatile components that males detect at a distance. Species differences in female pheromone composition and male response directly reinforce reproductive isolation in nature, because even slight variations in the species-specific pheromone blend are usually rejected by the male. The mechanisms by which a new pheromone signal-response system could evolve are enigmatic, because any deviation from the optimally attractive blend should be selected against...
October 3, 2016: Proceedings of the National Academy of Sciences of the United States of America
Chelsea D Kilimnik, Cindy M Meston
INTRODUCTION: Women's sexuality is influenced by their perceptions of their bodies. Negative body appraisals have been implicated in the development and maintenance of sexual concerns in women with a history of childhood sexual abuse (CSA). The sexuality of these women is often expressed in extremes of approach and avoidant sexual tendencies, which have been related to the sexual inhibition and sexual excitation pathways of the dual control model. AIM: To test the influence of body esteem on the sexual excitation and inhibition responses of women with and without a history of CSA...
September 27, 2016: Journal of Sexual Medicine
Peng-Fei Fan, Chang-Yong Ma, Paul A Garber, Wen Zhang, Han-Lan Fei, Wen Xiao
Dance is a universal art form practiced by all human societies and has many functions including sexual attraction, social cohesion, and the therapeutic release of energy. Dance also has been reported in a small number of non-human primate species, in particular apes. However, its function has not been systematically evaluated. We observed 357 intentional, rhythmic, and nonverbal dance displays performed by four adult female cao vit gibbons (Nomascus nasutus) residing in four polygynous groups during 3000 h of observation in Bangliang, Guangxi, China...
September 30, 2016: Scientific Reports
Winnie Mucherah, Elizabeth Owino, Kaleigh McCoy
While the past decade has seen an improvement in attitudes toward homosexuality, negative attitudes are still prevalent in many parts of the world. In general, increased levels of education tend to be predictive of relatively positive attitudes toward homosexuality. However, in most sub-Saharan countries, it is still believed that people are born heterosexual and that nonheterosexuals are social deviants who should be prosecuted. One such country is Kenya, where homosexuality is illegal and attracts a fine or jail term...
2016: Psychology Research and Behavior Management
Michael A Perelman
The Sexual Tipping Point(®) (STP) model is an integrated approach to the etiology, diagnosis and treatment of men with delayed ejaculation (DE), including all subtypes manifesting ejaculatory delay or absence [registered trademark owned by the MAP Educational Fund, a 501(c)(3) public charity]. A single pathogenetic pathway does not exist for sexual disorders generally and that is also true for DE specifically. Men with DE have various bio-psychosocial-behavioral & cultural predisposing, precipitating, maintaining, and contextual factors which trigger, reinforce, or worsen the probability of DE occurring...
August 2016: Translational Andrology and Urology
Jessica Oidtman, Susan G Sherman, Anthony Morgan, Danielle German, Renata Arrington-Sanders
First sex may be a sentinel event crucial to understanding sexual health trajectories of young Black same-sex attracted men (YBSSAM). We sought to understand whether satisfaction, condomless anal sex, and contextual factors during first sex were associated with sexual risk and recent condom use in YBSSAM. A total of 201 YBSSAM aged 15-24 years completed an Internet survey exploring first sex, current condom use, and sexual risk. High risk was defined as ≥3 of the following: new/concurrent sex partners, STI history, and no/inconsistent condom use...
September 20, 2016: Archives of Sexual Behavior
Jason Zingsheim, Dustin Bradley Goltz, Alexandra G Murphy, Teresa Mastin
This article examines the discursive construction of female same-sex sexual identities in Nairobi. We identify the discursive forces of "choice," devaluation, and invisibility as influential within Kenyan media representations of lesbian, gay, bisexual, transgender, and intersex citizens. Using creative focus groups and participant observation, we demonstrate how same-sex attracted women in Nairobi resist and rearticulate these discursive forces to assert their identity and agency as individuals and as a queer community...
September 16, 2016: Journal of Lesbian Studies
Theodore L Semon, Kevin J Hsu, A M Rosenthal, J Michael Bailey
A high proportion of self-identified gay men exhibit aspects of bisexuality during their lives. Some identify as bisexual before later identifying as gay; this has been called transitional bisexuality. Although many gay men report no attraction to women-or even sexual disgust toward them-others report some slight attraction to women. The latter have been studied as mostly homosexual men. We studied men with and without a history of transitional bisexuality, as well as mostly homosexual (i.e., those with Kinsey scores of 5) and completely homosexual (i...
September 15, 2016: Archives of Sexual Behavior
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