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https://www.readbyqxmd.com/read/28345039/female-brain-size-affects-the-assessment-of-male-attractiveness-during-mate-choice
#1
Alberto Corral-López, Natasha I Bloch, Alexander Kotrschal, Wouter van der Bijl, Severine D Buechel, Judith E Mank, Niclas Kolm
Mate choice decisions are central in sexual selection theory aimed to understand how sexual traits evolve and their role in evolutionary diversification. We test the hypothesis that brain size and cognitive ability are important for accurate assessment of partner quality and that variation in brain size and cognitive ability underlies variation in mate choice. We compared sexual preference in guppy female lines selected for divergence in relative brain size, which we have previously shown to have substantial differences in cognitive ability...
March 2017: Science Advances
https://www.readbyqxmd.com/read/28342163/brief-report-sexual-attraction-and-relationships-in-adolescents-with-autism
#2
Tamara May, Ken C Pang, Katrina Williams
Past research suggests more variation in sexual attraction in Autism Spectrum Disorder (ASD) using clinical samples. This study utilised a population representative group of 14/15 year olds from the Longitudinal Study of Australian Children. Ninety-four adolescents (73 males, 21 females) with ASD and 3454 (1685 males, 1675 females) without self-reported on sexual attraction and past sexual relationships. Females with ASD reported lower rates of heterosexual preference (adjusted odds ratio: 0.14, p < ...
March 24, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28327252/prosocial-behavior-as-sexual-signaling
#3
Gilbert Roberts
Maestripieri et al. provide an important service in highlighting prosocial biases toward attractive people from a cross-disciplinary perspective. Here I comment on the conceptual and critical side of their review of evolutionary psychology studies. I propose that further work should be focused on understanding the role of signaling in prosocial behavior.
January 2017: Behavioral and Brain Sciences
https://www.readbyqxmd.com/read/28327237/the-type-of-behavior-and-the-role-of-relationship-length-in-mate-choice-for-prosociality-among-physically-attractive-individuals
#4
Daniel Farrelly
Two further key aspects of prosociality as a sexual signal are explored here. First, the context in which it is used (in particular, relationship length) and, second, the different types of prosocial behaviors that exist in social interactions. Therefore, this commentary can show why prosocial behaviors are biased toward physically attractive individuals, as they can gain valuable information from them.
January 2017: Behavioral and Brain Sciences
https://www.readbyqxmd.com/read/28327236/omitted-evidence-undermines-sexual-motives-explanation-for-attractiveness-bias
#5
Marianne LaFrance, Alice H Eagly
This commentary makes three points: (1) the existing evidence does not consistently favor the proposed sex difference in attractiveness preferences, nor the fitness-related outcomes of attractiveness; (2) the neglected association of perceived attractiveness and trustworthiness allowed the authors to incorrectly attribute many findings solely to attractiveness, and (3) the importance accorded attractiveness in mate preferences is culturally shaped and likely evolutionarily novel.
January 2017: Behavioral and Brain Sciences
https://www.readbyqxmd.com/read/28327235/is-there-an-alternative-explanation-to-the-evolutionary-account-for-financial-and-prosocial-biases-in-favor-of-attractive-individuals
#6
Junhua Dang
All three critical points of the evolutionary explanation proposed by Maestripieri et al. may not withstand close scrutiny. Instead, there should be an alternative explanation that has nothing to do with genetic continuity, but stresses the rewarding property of attractiveness that results mainly from sociocultural value assignment and sexual experience pursuit.
January 2017: Behavioral and Brain Sciences
https://www.readbyqxmd.com/read/28318418/sexuality-and-everydayness-in-a-transnational-context-toward-a-re-imagined-west-china-relationship
#7
Yingying Huang
This paper examines how Chinese immigrants to Canada perceive and experience sexuality in a transnational context as revealed in a qualitative study. It identifies cultural interactions and tensions between 'the West' and 'China' embedded in participants' sexual narratives. Three thematic aspects of sexuality are explored: different views toward 'relationships' and how sex is involved in different stages of a relationship; physical desire and sexual attraction based on individuals' dialogues with contemporaries and their own cross-racial dating experience; and perceptions of sexual risks associated with an increasing awareness of China's opening up, in particular risks associated with attitudes towards condom use...
March 20, 2017: Culture, Health & Sexuality
https://www.readbyqxmd.com/read/28317876/extreme-adaptations-for-probable-visual-courtship-behaviour-in-a-cretaceous-dancing-damselfly
#8
Daran Zheng, André Nel, Edmund A Jarzembowski, Su-Chin Chang, Haichun Zhang, Fangyuan Xia, Haoying Liu, Bo Wang
Courtship behaviours, frequent among modern insects, have left extremely rare fossil traces. None are known previously for fossil odonatans. Fossil traces of such behaviours are better known among the vertebrates, e.g. the hypertelic antlers of the Pleistocene giant deer Megaloceros giganteus. Here we describe spectacular extremely expanded, pod-like tibiae in males of a platycnemidid damselfly from mid-Cretaceous Burmese amber. Such structures in modern damselflies, help to fend off other suitors as well as attract mating females, increasing the chances of successful mating...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28315307/no-compelling-positive-association-between-ovarian-hormones-and-wearing-red-clothing-when-using-multinomial-analyses
#9
Khandis R Blake, Barnaby J W Dixson, Siobhan M O'Dean, Thomas F Denson
Several studies report that wearing red clothing enhances women's attractiveness and signals sexual proceptivity to men. The associated hypothesis that women will choose to wear red clothing when fertility is highest, however, has received mixed support from empirical studies. One possible cause of these mixed findings may be methodological. The current study aimed to replicate recent findings suggesting a positive association between hormonal profiles associated with high fertility (high estradiol to progesterone ratios) and the likelihood of wearing red...
March 20, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28315140/electrophysiological-evidence-of-perceived-sexual-attractiveness-for-human-female-bodies-varying-in-waist-to-hip-ratio
#10
Marzia Del Zotto, Alan J Pegna
The dynamics of brain activation reflecting attractiveness in humans are unclear. Among the different features affecting attractiveness of the female body, the waist-to-hip ratio (WHR) is considered to be crucial. To date, however, no event-related potential (ERP) study has addressed the question of its associated pattern of brain activation. We carried out two different experiments: (a) a behavioural study, to judge the level of attractiveness of female realistic models depicting 4 different WHRs (0.6, 0.7, 0...
March 17, 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/28306729/a-cooperative-function-for-multisensory-stimuli-in-the-induction-of-approach-behavior-of-a-potential-mate
#11
Anders Ågmo, Eelke M S Snoeren
Intrasexual competition is an important element of natural selection in which the most attractive conspecific has a considerable reproductive advantage over the others. The conspecifics that are approached first often become the preferred mate partners, and could thus from a biological perspective have a reproductive advantage. This underlines the importance of the initial approach and raises the question of what induces this approach, or what makes a conspecific attractive. Identification of the sensory modalities crucial for the activation of approach is necessary for elucidating the central nervous processes involved in the activation of sexual motivation and eventually copulatory behavior...
2017: PloS One
https://www.readbyqxmd.com/read/28300484/factors-associated-with-general-and-health-related-quality-of-life-in-menopausal-transition-among-women-from-serbia
#12
Jelena Dotlic, Ilma Kurtagic, Selmina Nurkovic, Nikolina Kovacevic, Sanja Radovanovic, Biljana Rancic, Branislav Milosevic, Milan Terzic, Tatjana Gazibara
This study assessed factors associated with quality of life (QOL) among Serbian peri- and postmenopausal women using two menopause-specific scales. This cross-sectional study included 500 women aged 40-65 years who had a gynecologic check-up in one of two Community Health Centers in Belgrade during February 2014 to January 2015. Women completed: a questionnaire about socio-demographics, habits and health status; a menopause-specific questionnaire, Utian's Quality of Life Scale (UQOL); a Women's Health Questionnaire (WHQ) and Beck's Depression Inventory (BDI)...
March 16, 2017: Women & Health
https://www.readbyqxmd.com/read/28299419/insights-into-the-role-of-age-and-social-interactions-on-the-sexual-attractiveness-of-queens-in-an-eusocial-bee-melipona-flavolineata-apidae-meliponini
#13
Jamille Costa Veiga, Cristiano Menezes, Felipe Andrés León Contrera
The attraction of sexual partners is a vital necessity among insects, and it involves conflict of interests and complex communication systems among male and female. In this study, we investigated the developing of sexual attractiveness in virgin queens (i.e., gynes) of Melipona flavolineata, an eusocial stingless bee. We followed the development of sexual attractiveness in 64 gynes, belonging to seven age classes (0, 3, 6, 9, 15, 18 days post-emergence), and we also evaluated the effect of different social interactions (such as competition between queens and interactions with workers) on the development of attractiveness in other 60 gynes...
April 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/28298915/transcriptomic-analysis-reveals-mechanisms-of-sterile-and-fertile-flower-differentiation-and-development-in-viburnum-macrocephalum-f-keteleeri
#14
Zhaogeng Lu, Jing Xu, Weixing Li, Li Zhang, Jiawen Cui, Qingsong He, Li Wang, Biao Jin
Sterile and fertile flowers are an important evolutionary developmental (evo-devo) phenotype in angiosperm flowers, playing important roles in pollinator attraction and sexual reproductive success. However, the gene regulatory mechanisms underlying fertile and sterile flower differentiation and development remain largely unknown. Viburnum macrocephalum f. keteleeri, which possesses fertile and sterile flowers in a single inflorescence, is a useful candidate species for investigating the regulatory networks in differentiation and development...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28295431/relational-family-therapy-as-an-aid-toward-resolving-the-trauma-of-sexual-abuse-in-childhood-in-the-process-of-separation-in-the-couple-relationship
#15
Tanja Repič Slavič, Christian Gostečnik
Relational family therapy (RFT) is a psycho-organic therapeutic approach that combines intrapsychic dynamics with interpersonal mechanisms and a systemic perspective. This integrative model is based on the assumption that the repetitive patterns of relationships in early childhood repeat in adulthood. It often happens that a sexually abused individual will later unconsciously be attracted to someone with whom they will relive the abusive atmosphere and dynamics from childhood. The purpose of this contribution is to present the RFT approach for dealing with sexual abuse...
March 13, 2017: Journal of Marital and Family Therapy
https://www.readbyqxmd.com/read/28288658/prostate-cancer-treated-with-brachytherapy-an-exploratory-study-of-dose-dependent-biomarkers-and-quality-of-life
#16
Sarah O S Osman, Simon Horn, Darren Brady, Stephen J McMahon, Ahamed B Mohamed Yoosuf, Darren Mitchell, Karen Crowther, Ciara A Lyons, Alan R Hounsell, Kevin M Prise, Conor K McGarry, Suneil Jain, Joe M O'Sullivan
BACKGROUND: Low-dose-rate permanent prostate brachytherapy (PPB) is an attractive treatment option for patients with localised prostate cancer with excellent outcomes. As standard CT-based post-implant dosimetry often correlates poorly with late treatment-related toxicity, this exploratory (proof of concept) study was conducted to investigate correlations between radiation - induced DNA damage biomarker levels, and acute and late bowel, urinary, and sexual toxicity. METHODS: Twelve patients treated with (125)I PPB monotherapy (145Gy) for prostate cancer were included in this prospective study...
March 14, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28287877/measuring-sexual-and-gender-minority-populations-in-health-surveillance
#17
Joanne G Patterson, Jennifer M Jabson, Deborah J Bowen
PURPOSE: Sexual and gender minorities (SGMs) are underrepresented and information about SGMs is difficult to locate in national health surveillance data, and this limits identification and resolution of SGM health disparities. It is also not known how measures of sexual orientation and transgender-inclusive gender identity in health surveillance compare with best practice recommendations. This article reviews and summarizes the publicly available, English language, large-scale, rigorously sampled, national, international, and regional data sources that include sexual orientation or transgender-inclusive gender identity and compares measures with best practice guidelines...
March 13, 2017: LGBT Health
https://www.readbyqxmd.com/read/28287755/female-bearded-capuchin-monkeys-sapajus-libidinosus-use-objects-to-solicit-the-sexual-partner
#18
Elisabetta Visalberghi, Cecilia Di Bernardi, Luca A Marino, Dorothy Fragaszy, Patricia Izar
Female wild bearded capuchins (Sapajus libidinosus) living at Serra da Capivara National Park (SCNP) that use stone and stick tools during foraging occasionally toss or throw stones at the male during courtship. We report similar behaviors in a different population that uses stones as tools in foraging. We video-recorded the sexual behavior of four females (27 days during nine proceptive periods) belonging to a group of wild capuchins living in Fazenda Boa Vista (FBV), 320 km from SCNP. Three females used stones or branches when they solicited the alpha male (79 episodes)...
March 13, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28285543/feelings-of-unattractiveness-in-peri-and-postmenopausal-women-are-associated-with-depressed-mood-poor-memory-and-unsatisfactory-sexual-relationships
#19
M Terauchi, A Hirose, M Akiyoshi, K Kato, N Miyasaka
OBJECTIVES: This study aimed to investigate the prevalence of, and risk factors associated with, the feeling of unattractiveness in peri- and postmenopausal women. METHODS: The records of 351 women aged 40-76 who enrolled in a health and nutrition education program at a menopause clinic were analyzed in a cross-sectional manner. Perceptions of unattractiveness were estimated according to responses for the item 'feeling less attractive than before' on the Menopausal Health-Related Quality of Life Questionnaire...
March 11, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28284776/neural-underpinnings-of-prosexual-effects-induced-by-gamma-hydroxybutyrate-in-healthy-male-humans
#20
Oliver G Bosch, Michael M Havranek, Andrea Baumberger, Katrin H Preller, Robin von Rotz, Marcus Herdener, Rainer Kraehenmann, Philipp Staempfli, Milan Scheidegger, Tim Klucken, Erich Seifritz, Boris B Quednow
Gamma-hydroxybutyrate (GHB) is a GHB-/GABAB-receptor agonist currently used as treatment for narcolepsy but also as a drug of abuse. Non-medical GHB users have repeatedly reported prosexual effects including libido-enhancement and lowering of attractiveness standards for partner selection. Here, we examined the putative prosexual effects of oral GHB in healthy males in two experiments both employing randomized, placebo-controlled, double-blind, balanced, and cross-over study designs. In experiment I, subjective effects of 20 and 35mg/kg GHB vs...
March 8, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
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