Search results for "Sexual behavior"
showing 10 items of 304 documents
Sex roles and sex ratios in animals
2022
In species with separate sexes, females and males often differ in their morphology, physiology and behaviour. Such sex-specific traits are functionally linked to variation in reproductive competition, mate choice and parental care, which have all been linked to sex roles. At the 150th anniversary of Darwin's theory on sexual selection, the question of why patterns of sex roles vary within and across species remains a key topic in behavioural and evolutionary ecology. New theoretical, experimental and comparative evidence suggests that variation in the adult sex ratio (ASR) is a key driver of variation in sex roles. Here, we first define and discuss the historical emergence of the sex role c…
Neural correlates of intimate picture stimuli in females
2018
Jacob et al. (2011) previously reported on intimate picture stimuli for emotion research in females in Psychiatry Research. Difficulties to engage in intimate relations constitute problems of many mental disorders, and intimacy must be differentiated from pure sex drive. Functional neuroimaging is an important tool to understand the pathophysiology of psychiatric disorders. We now studied cerebral activation in response to intimate stimuli in 35 healthy women. Comparison stimuli were taken from the International Affective Picture System. Neuroimaging revealed increased activation in bilateral occipitotemporal, parietal and anterior cingulate cortices extending to the orbitofrontal area. The…
Genital pustules, fever, lymphadenopathy in a heterosexual couple
2022
No abstract available
Spanish validation of the Sexual Addiction Screening Test.
2018
Background and aims Sexual addiction is a pathological behavior characterized by a combination of excessive sexual desire and impaired ability to control it. Its incidence ranges between 1.2% and 32.2%, although this number may vary depending on the screening tool used. This wide variability is largely due to the use of non-validated instruments (e.g., structural validity relying on exploratory analyses, instruments translated without an additional validation process, or instruments validated in another format). To deal with these limitations, this study tested the psychometric properties of the Spanish paper-and-pencil and online versions of the Sexual Addiction Screening Test (SAST). Met…
Time and Gender Influence in Sexual Behavior of Romanian Adolescents
2015
Abstract Our study tries to establish if the young generation starts sexual activity earlier, under mass media and social pressure, and if the gender is a relevant influence factor in this context. A questionnaire-based survey was developed in order to evaluate the potential relationship between psychological traits and behavior implying risk for people health. The questionnaire was distributed and we received valid responses from a number of 1,364 people (536 male and 828 female). Using SPSS one way ANOVA we found a significant difference determinate by gender regarding the age of sexual activity start.
Why nursing students have sex without condom? A study in the university of Palermo.
2020
Aims. Evaluation of (hc knowledge and behavioral risks relatcd lo sexually transmiltcd infections (STIs) among the student population of the degree course in nursing at the University of Palermo. Materials and Methods. An anonymous online a survey was provided to students that investigate to socio-demographic information. sexual habits and the level of knowledge of the STIs. Multivariable logistic regression was performed. considering it as a dependent variable "Do you permanently have unprotected sex (without a condom)? Yes", in order to evaluate the role of the variables of the questionnaire. Results are expressed as adjusted Odds Ratio (aOR). Results. The sample size consists of 405. The…
Vacuna contra el virus del papiloma humano en adolescentes: Análisis mediante grupos focales
2015
<p><strong>Objetivo</strong> La obtención de niveles de cobertura bajos frente a la vacunación contra el virus del papiloma humano, ha planteado la necesidad de analizar las causas que están afectando a la toma de decisiones sobre la administración de la vacuna, a partir de las manifestaciones de aquellas directamente implicadas, las adolescentes.</p><p><strong>Métodos</strong> Por tanto, se ha planteado la realización de una evaluación mediante la utilización de la metodología de grupos focales. Se han realizado un grupo piloto y cuatro grupos focales en el Instituto Tirant lo Blanc de Gandía con adolescentes pertenecientes a distintas poblaciones …
Behavioral roles of the sexually dimorphic structures in the male harvestman, Phalangium opilio (Opiliones, Phalangiidae)
2006
Abstract: In various animal species, male sexual dimorphic characters may be used during intrasexual contests as ornaments to attract females, or to hold them before, during, or after copulation. In the well-known harvestman, Phalangium opilio L., 1758, the behavioral functions of these male sexually dimorphic structures have never been studied in detail. Therefore, in addition to a morphometric study, 21 male contests and 43 sexual interactions were analyzed. Our observations revealed that during contests, the male cheliceral horns form a surface by which the contestants use to push each other face-to-face while rapidly tapping their long pedipalps against the pedipalps of the opponent, oc…
Treatment of Traumatised Sexuality
2021
Based on therapeutic meetings with individuals who have experienced sexual violence and abuse, the challenge is how do we help these couples to establish sexual relationships on their own terms, without interference of defence or coping strategies they have used to protect themselves against the overwhelming experiences of violence or abuse in the past? This article will focus on therapeutic work with such couples and how to interact with them and support their efforts to establish satisfying sexual relationships, based on sexological experience as well as experience from work with traumatisation. The basis for our treatment is a modified version of William Masters and Virginia Johnson’s ap…
Food insecurity with hunger and sexual behavior among adolescents from 53 countries
2021
Objectives: To examine the relationship of food insecurity with sexual intercourse, multiple sexual partners and non-condom use. Methods: Data on food insecurity (hunger) and sexual behaviors from 205,296 adolescents from 53 countries. Associations were analyzed using meta-analysis. Results: Overall, 16.0% of the adolescents ever had sexual intercourse and the prevalence of moderate and severe food insecurity was 44.9% and 6.2%, respectively. Moderate and severe food insecurity was associated with higher odds for sexual intercourse. Any food insecurity was significantly associated with condom nonuse at last sex. Conclusions: Food insecurity was associated with higher odds of ever having sex…