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https://www.readbyqxmd.com/read/28919258/examining-the-time-course-of-genital-and-subjective-sexual-responses-in-women-and-men-with-concurrent-plethysmography-and-thermography
#1
Jackie S Huberman, Samantha J Dawson, Meredith L Chivers
Sexual response is a dynamic process, though there is limited knowledge of the time course and relationships among its psychological and physiological components. To address this gap, we concurrently assessed self-reported sexual arousal, genital temperature (with thermography), and genital vasocongestion (with vaginal photoplethysmography [VPP] or penile plethysmography [PPG]) during sexual and nonsexual films in 28 androphilic women (attracted to men) and 27 gynephilic men (attracted to women). Men and women had similarly strong agreement between subjective and genital responses (sexual concordance) with thermography, but this agreement was stronger in men than women with PPG/VPP...
September 14, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28910253/characterizing-non-monosexual-women-at-risk-for-poor-mental-health-outcomes-a-mixed-methods-study
#2
Lori E Ross, Melissa H Manley, Abbie E Goldberg, Alia Januwalla, Keisha Williams, Corey E Flanders
OBJECTIVES: Non-monosexual women - those who report attraction to or sexual relationships with individuals of more than one gender - have elevated risk for poor mental health outcomes. We aimed to examine which elements of non-monosexual experience are associated with this elevated risk. METHODS: We conducted a sequential exploratory mixed methods analysis of qualitative interview and survey data from 39 non-monosexual women recruited consecutively through prenatal care providers...
September 14, 2017: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/28905723/breeding-and-rearing-naked-mole-rats-heterocephalus-glaber-under-laboratory-conditions
#3
Chenlin Yu, Shiyong Wang, Guoshi Yang, Shanmin Zhao, Lifang Lin, Wenjing Yang, Qiu Tang, Wei Sun, Shufang Cui
The unique biologic characteristics of naked mole-rats (NMR, Heterocephalus glaber) include longevity, cancer resistance, hypoxia tolerance, and pain insensitivity, making NMR an attractive model for biomedical research on aging, cancer, and neurobiology. However, breeding and rearing NMR in captivity is challenging. Here, we report a method for breeding NMR by using a closed-colony mating system. We selected sexually mature male and female NMR from different natal colonies and mated them 1:1. The 5 original colonies had an annual parity of 3...
January 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28904748/the-complexity-of-mating-decisions-in-stalk-eyed-flies
#4
Nadine C Chapman, Penthai Siriwat, James Howie, Aaron Towlson, Lawrence Bellamy, Kevin Fowler, Andrew Pomiankowski
All too often, studies of sexual selection focus exclusively on the responses in one sex, on single traits, typically those that are exaggerated and strongly sexually dimorphic. They ignore a range of less obvious traits and behavior, in both sexes, involved in the interactions leading to mate choice. To remedy this imbalance, we analyze a textbook example of sexual selection in the stalk-eyed fly (Diasemopsis meigenii). We studied several traits in a novel, insightful, and efficient experimental design, examining 2,400 male-female pairs in a "round-robin" array, where each female was tested against multiple males and vice versa...
September 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28892486/misattribution-of-musical-arousal-increases-sexual-attraction-towards-opposite-sex-faces-in-females
#5
Manuela M Marin, Raphaela Schober, Bruno Gingras, Helmut Leder
Several theories about the origins of music have emphasized its biological and social functions, including in courtship. Music may act as a courtship display due to its capacity to vary in complexity and emotional content. Support for music's reproductive function comes from the recent finding that only women in the fertile phase of the reproductive cycle prefer composers of complex melodies to composers of simple ones as short-term sexual partners, which is also in line with the ovulatory shift hypothesis...
2017: PloS One
https://www.readbyqxmd.com/read/28887482/preliminary-evidence-of-olfactory-signals-of-women-s-fertility-increasing-social-avoidance-behavior-towards-women-in-pair-bonded-men
#6
Chen Oren, Simone G Shamay-Tsoory
Previous studies suggest that women's body odor is perceived as more attractive during ovulation and that exposure to women's chemical signals of high fertility leads to increased mating motivation. Given that pair-bonded men react differently than single men to unfamiliar women, we investigated whether women's chemical signals of fertility influence approach behavior among pair-bonded and single men. In the first experiment, men performed the Comfortable Interpersonal Distance task while exposed to body odor samples from women who were ovulating and from the same women during their luteal phase...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28885894/comparison-of-self-identified-minor-attracted-persons-who-have-and-have-not-successfully-refrained-from-sexual-activity-with-children
#7
Lisa Cohen, Nwayieze Ndukwe, Zimri Yaseen, Igor Galynker
The present study compares community-based minor attracted persons (MAPs) with and without histories of sexual activity with children. MAP-Actors (N = 342) were significantly older than Non-Actors (N = 223), with longer duration of pedophilic attraction, more antisocial traits, greater attraction to boys, greater difficulty controlling their attraction and more positive attitudes towards adult-child sexual activity. Additionally, more MAP-Actors reported prior mental health treatment, nonsexual offenses, and childhood sexual and nonsexual abuse...
September 8, 2017: Journal of Sex & Marital Therapy
https://www.readbyqxmd.com/read/28885134/gay-seouls-expanding-religious-spaces-for-non-heterosexuals-in-south-korea
#8
Joseph Yi, Gowoon Jung, Saul Serna Segura, Joe Phillips, Jerry Z Park
What sorts of Protestant Christian congregations offer space for worship and dialogue among persons with different sexual orientations? The academic literature finds or assumes that non-heterosexuals are stigmatized or invisible in theologically conservative congregations and are welcomed in progressive, affirming congregations. This article develops an alternative claim that some conservative or evangelical congregations offer attractive spaces for many non-heterosexuals to worship and dialogue. We illustrate with an exploratory study of four, inclusive congregations in South Korea-two theologically progressive, two evangelical-whose pastors welcomed everybody regardless of sexual orientation or gender identity...
September 8, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/28876299/utilization-of-sexually-transmitted-infection-services-at-2-health-facilities-targeting-men-who-have-sex-with-men-in-south-africa-a-retrospective-analysis-of-operational-data
#9
Kate Rees, Oscar Radebe, Clarissa Arendse, Charlotte Modibedi, Helen E Struthers, James A McIntyre, Remco P H Peters
BACKGROUND: Men who have sex with men (MSM) are a key population, particularly vulnerable to sexually transmitted infections (STIs) and HIV, but there are limited data on health programs targeting MSM in Africa. This study aims to describe the utilization of nongovernmental organization-supported sexual health services for MSM at 2 public sector health facilities in Johannesburg, South Africa. METHODS: We retrospectively analyzed routine data over the period of January 2014 to June 2016...
July 21, 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28870385/interaction-between-visual-and-chemical-cues-in-a-liolaemus-lizard-a-multimodal-approach
#10
Natalin S Vicente, Monique Halloy
Multimodal communication involves the use of signals and cues across two or more sensory modalities. The genus Liolaemus (Iguania: Liolaemidae) offers a great potential for studies on the ecology and evolution of multimodal communication, including visual and chemical signals. In this study, we analyzed the response of male and female Liolaemus pacha to chemical, visual and combined (multimodal) stimuli. Using cue-isolation tests, we registered the number of tongue flicks and headbob displays from exposure to signals in each modality...
August 12, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/28870186/knowledge-attitude-and-status-of-nitrite-inhalant-use-among-men-who-have-sex-with-men-in-tianjin-china
#11
Zheng Zhang, Li Zhang, Feng Zhou, Zhen Li, Jie Yang
BACKGROUND: Nitrite inhalants have become popular as recreational drugs among the homosexual population in some developed countries since the 1980s. These drugs, also called RUSH in China, have become attractive among Chinese men who have sex with men (MSM) in the past few years. The aim of this cross-sectional study was to understand the knowledge, attitude, and status of nitrite inhalant use among Chinese MSM. METHODS: The study participants were recruited from Tianjin, China between April and August 2012...
September 4, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28857148/why-does-inbreeding-reduce-male-paternity-effects-on-sexually-selected-traits
#12
Jason N Marsh, Regina Vega-Trejo, Michael D Jennions, Megan L Head
Mating with relatives has often been shown to negatively affect offspring fitness ('inbreeding depression'). There is considerable evidence for inbreeding depression due to effects on naturally selected traits, particularly those expressed early in life, but there is less evidence of it for sexually selected traits. This is surprising because sexually selected traits are expected to exhibit strong inbreeding depression. Here we experimentally created inbred and outbred male mosquitofish (Gambusia holbrooki)...
August 31, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28846998/plant-science-sexual-attraction-channelled-in-moss
#13
Leonie Steinhorst, Jörg Kudla
No abstract text is available yet for this article.
August 23, 2017: Nature
https://www.readbyqxmd.com/read/28844646/counteracting-ascarosides-act-through-distinct-neurons-to-determine-the-sexual-identity-of-c-%C3%A2-elegans-pheromones
#14
Erin Z Aprison, Ilya Ruvinsky
Sex pheromones facilitate reproduction by attracting potential mates and altering their behavior and physiology. In C. elegans, males and hermaphrodites secrete similar blends of pheromone molecules, two of which are present in different relative concentrations: ascr#3, which is more abundant in hermaphrodites, and ascr#10, which is more abundant in males. It is not currently understood how this compositional difference results in sex-specific effects, for example, the slower aging of the hermaphrodite germline in the presence of physiologically relevant concentrations of male pheromones...
September 11, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28843181/early-prenatal-androgen-exposure-reduces-testes-size-and-sperm-concentration-in-sheep-without-altering-neuroendocrine-differentiation-and-masculine-sexual-behavior
#15
C M Scully, C T Estill, R Amodei, A McKune, K P Gribbin, M Meaker, F Stormshak, C E Roselli
Prenatal androgens are largely responsible for growth and differentiation of the genital tract and testis and for organization of the control mechanisms regulating male reproductive physiology and behavior. The aim of the present study was to evaluate the impact of inappropriate exposure to excess testosterone (T) during the first trimester of fetal development on the reproductive function, sexual behavior, and fertility potential of rams. We found that biweekly maternal T propionate (100 mg) treatment administered from Day 30-58 of gestation significantly decreased (P < 0...
July 29, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/28842389/usability-of-a-culturally-informed-mhealth-intervention-for-symptoms-of-anxiety-and-depression-feedback-from-young-sexual-minority-men
#16
John B Fleming, Yvette N Hill, Michelle Nicole Burns
BACKGROUND: To date, we are aware of no interventions for anxiety and depression developed as mobile phone apps and tailored to young sexual minority men, a group especially at risk of anxiety and depression. We developed TODAY!, a culturally informed mobile phone intervention for young men who are attracted to men and who have clinically significant symptoms of anxiety or depression. The core of the intervention consists of daily psychoeducation informed by transdiagnostic cognitive behavioral therapy (CBT) and a set of tools to facilitate putting these concepts into action, with regular mood ratings that result in tailored feedback (eg, tips for current distress and visualizations of mood by context)...
August 25, 2017: JMIR Human Factors
https://www.readbyqxmd.com/read/28838073/new-horizons-in-mycoplasma-genitalium-treatment
#17
REVIEW
Catriona S Bradshaw, Jorgen S Jensen, Ken B Waites
Mycoplasmagenitalium is an important sexually transmitted pathogen responsible for both male and female genital tract disease. Appreciation of its significance in human disease has been hampered by its slow growth in culture, difficulty in isolating it, and lack of commercial molecular-based tests for rapid detection. Comparatively few in vitro data on antimicrobial susceptibility are available due to the scarcity of clinical isolates and difficulty in performing susceptibility tests to determine minimum inhibitory concentrations for M...
July 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28834573/sexual-dimorphism-in-epicuticular-compounds-despite-similar-sexual-selection-in-sex-role-reversed-seed-beetles
#18
Isobel Booksmythe, Howard D Rundle, Göran Arnqvist
Sexual selection imposed by mating preferences is often implicated in the evolution of both sexual dimorphism and divergence between species in signalling traits. Epicuticular compounds (ECs) are important signalling traits in insects and show extensive variability among and within taxa. Here we investigate whether variation in the multivariate EC profiles of two sex role reversed beetle species, Megabruchidius dorsalis and M. tonkineus, predicts mate attractiveness and mating success in males and females. The two species had highly distinct EC profiles and both showed significant sexual dimorphism in ECs...
August 23, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28832683/sex-specific-rejection-in-mate-guarding-pair-formation-in-the-intertidal-copepod-tigriopus-californicus
#19
Satomi Tsuboko-Ishii, Ronald S Burton
Securing a potential mate is one of the most important processes in sexual reproduction of animals. Intertidal copepods of the genus Tigriopus show mate-guarding behavior where a male captures a female and continues to clasp her for up to two weeks prior to copulation. Although these copepods form a mate-guarding pair between a male and a female with high accuracy, interactions between the sexes in pair formation have not been well described and the mechanism allowing successful male-female pair formation is not yet understood...
2017: PloS One
https://www.readbyqxmd.com/read/28831369/dimensions-of-sexual-orientation-and-sleep-disturbance-among-young-adults
#20
Julie Fricke, Maria Sironi
We examined associations among 3 dimensions of sexual orientation (identity, attraction, and behavior) and sleep disturbance among young adults in the United States. Using Wave IV of the National Longitudinal Study of Adolescent Health (respondents aged 24-32, N = 14,334), we ran multivariate logistic regressions to estimate the probability of reporting trouble falling asleep, trouble staying asleep, and short sleep duration, based on specific sexual orientation categories. Results after controlling for mental health indicate that these categories are more likely to have trouble falling asleep: women who identify as "bisexual" (OR = 1...
December 2017: Preventive Medicine Reports
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