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1.
Sci Rep ; 14(1): 11051, 2024 05 14.
Artigo em Inglês | MEDLINE | ID: mdl-38745001

RESUMO

Distressing low sexual desire, termed Hypoactive Sexual Desire Disorder (HSDD), affects approximately 10% of women and 8% of men. In women, the 'top-down' theory of HSDD describes hyperactivity in higher-level cognitive brain regions, suppressing lower-level emotional/sexual brain areas. However, it is unknown how this neurofunctional disturbance compares to HSDD in men. To investigate this, we employed task-based functional MRI in 32 women and 32 men with HSDD to measure sexual-brain processing during sexual versus non-sexual videos, as well as psychometric questionnaires to assess sexual desire/arousal. We demonstrate that women had greater activation in higher-level and lower-level brain regions, compared to men. Indeed, women who had greater hypothalamic activation in response to sexual videos, reported higher psychometric scores in the evaluative (r = 0.55, P = 0.001), motivational (r = 0.56, P = 0.003), and physiological (r = 0.57, P = 0.0006) domains of sexual desire and arousal after watching the sexual videos in the scanner. By contrast, no similar correlations were observed in men. Taken together, this is the first direct comparison of the neural correlates of distressing low sexual desire between women and men. The data supports the 'top-down' theory of HSDD in women, whereas in men HSDD appears to be associated with different neurofunctional processes.


Assuntos
Encéfalo , Libido , Imageamento por Ressonância Magnética , Disfunções Sexuais Psicogênicas , Humanos , Feminino , Masculino , Adulto , Encéfalo/diagnóstico por imagem , Encéfalo/fisiologia , Disfunções Sexuais Psicogênicas/psicologia , Disfunções Sexuais Psicogênicas/fisiopatologia , Libido/fisiologia , Caracteres Sexuais , Adulto Jovem , Comportamento Sexual/psicologia , Comportamento Sexual/fisiologia , Mapeamento Encefálico , Inquéritos e Questionários , Pessoa de Meia-Idade
2.
Sci Rep ; 14(1): 10513, 2024 05 07.
Artigo em Inglês | MEDLINE | ID: mdl-38714675

RESUMO

In the current research, we used data from a sample of 16,327 menstrual cycle tracking app users to examine the association between menstrual cycle characteristics and sexual motivation tracked over 10 months of app use. Guided by past work that finds links between menstrual cycle characteristics related to conception risk and sexual motivation, we found that (a) between-women, shorter (r = - 0.04, p = 0.007), more regular cycles predicted small increases in sexual motivation (r = - 0.04, p = 0.001); (b) within-women, shorter cycles predicted greater sexual motivation that month (r = - 0.04, p < 0.001) and (c) the next month (ßs: - 0.10 to - 0.06, ps < 0.001), but (d) changes in sexual motivation did not reliably precede changes in cycle length (ßs: - 0.01 to 0.02, ps > 0.15). Within-woman analyses also revealed that (e) shorter cycles were followed by more frequent reports of fatigue (ß = - 0.06, p < 0.001), insomnia (ß = - 0.03, p < 0.001), and food cravings (ß = - 0.04, p < 0.001). Together, results suggest that menstrual cycles characteristics and sexual motivation may covary together in ways that reflect changing investments in reproduction. Small effect sizes and lack of experimental control warrant cautious interpretations of results.


Assuntos
Ciclo Menstrual , Motivação , Comportamento Sexual , Humanos , Feminino , Ciclo Menstrual/fisiologia , Ciclo Menstrual/psicologia , Motivação/fisiologia , Comportamento Sexual/psicologia , Comportamento Sexual/fisiologia , Adulto , Estudos Longitudinais , Adulto Jovem , Aplicativos Móveis , Adolescente
3.
Rev Int Androl ; 22(1): 23-28, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38735874

RESUMO

Assess the long-term outcome on cosmetic appearance, voiding, sexual function, and psychological impact of young adults operated by urethral advance (UA) technique in childhood. Patients over 14 years old, who underwent UA hypospadias repair in our centre (2000-2010) were evaluated. All patients presented mid-distal hypospadias with subcoronal or penile meatus and curvature lower than 20°. The cosmetic appearance, urinary and sexual function, body perception and overall satisfaction were assessed through 5 questionnaires. From 2000 to 2010, 143 children underwent UA hypospadias repair. 36 patients between 14 and 27 years were evaluated. The Hypospadias Objective Penile Evaluation (HOPE) showed an average of 8.75 (+/- 0.97), which indicates a good aesthetic result. Voiding dysfunction symptoms were assessed through the American Urological Association Symptom Index (AUASI) where 80.6% had none or mild symptoms and 19.4% had moderate symptoms. Only 11/36 patients were sexually active, according to the International Index of Erectile Function (IIEF-15) scale, none had erectile dysfunction, and their relationships were satisfactory. Assessment of the body perception through the Genital Perception Scale (GPS) was positive or very positive in 88.9% of the patients. However, the perception of their genitals was positive or very positive in 77.8%, there is a negative correlation between the perception of their body and genitals in 13.9% of the patients. Our results indicate that UA technique for hypospadias repair might be a valid option for the correction of mid-distal hypospadias when indicated.


Assuntos
Hipospadia , Satisfação do Paciente , Uretra , Humanos , Hipospadia/cirurgia , Hipospadia/psicologia , Masculino , Adolescente , Uretra/cirurgia , Adulto , Adulto Jovem , Seguimentos , Resultado do Tratamento , Procedimentos Cirúrgicos Urológicos Masculinos/métodos , Inquéritos e Questionários , Comportamento Sexual/fisiologia
4.
J Int Med Res ; 52(4): 3000605241244762, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38676541

RESUMO

OBJECTIVE: This cross-sectional study aimed to explore the association between non-penetrative sexual activities (NPSA) and depression levels in women diagnosed with vaginismus. METHODS: A cross-sectional retrospective study was conducted between March 2016 and June 2019, after approval by the Firat University Faculty of Medicine ethics committee. Participants comprised married women referred to our female sexual dysfunction outpatient clinic with vaginismus. Diagnosis of vaginismus was established following comprehensive evaluations, including gynecological examination and psychiatric assessment. Sociodemographic data and Beck Depression Inventory (BDI) scores were collected. We compared depression levels between women who engaged in NPSA and those who did not. RESULTS: Of the 75 women with primary vaginismus included in the study, 18 did not engage in any NPSA and 57 engaged in at least one NPSA. The average BDI score of those who engaged in NPSA was significantly lower than those who did not. A negative correlation was found between the number of NPSA engaged in and BDI scores (r = -0.494). CONCLUSIONS: Women with vaginismus had high depression scores, but engaging in NPSA was associated with lower depression levels. The findings suggest that incorporating NPSA into clinical interventions may be beneficial for managing depression in women with vaginismus.


Assuntos
Depressão , Comportamento Sexual , Vaginismo , Humanos , Feminino , Estudos Transversais , Adulto , Depressão/psicologia , Vaginismo/psicologia , Vaginismo/fisiopatologia , Estudos Retrospectivos , Comportamento Sexual/psicologia , Comportamento Sexual/fisiologia , Pessoa de Meia-Idade , Adulto Jovem , Escalas de Graduação Psiquiátrica
5.
Neurosci Biobehav Rev ; 161: 105679, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38642866

RESUMO

In this mini-review, we summarize the brain distribution of aromatase, the enzyme catalyzing the synthesis of estrogens from androgens, and the mechanisms responsible for regulating estrogen production within the brain. Understanding this local synthesis of estrogens by neurons is pivotal as it profoundly influences various facets of social behavior. Neuroestrogen action spans from the initial processing of socially pertinent sensory cues to integrating this information with an individual's internal state, ultimately resulting in the manifestation of either pro-affiliative or - aggressive behaviors. We focus here in particular on aggressive and sexual behavior as the result of correct individual recognition of intruders and potential mates. The data summarized in this review clearly point out the crucial role of locally synthesized estrogens in facilitating rapid adaptation to the social environment in rodents and birds of both sexes. These observations not only shed light on the evolutionary significance but also indicate the potential implications of these findings in the realm of human health, suggesting a compelling avenue for further investigation.


Assuntos
Estrogênios , Comportamento Social , Animais , Humanos , Estrogênios/metabolismo , Aromatase/metabolismo , Encéfalo/fisiologia , Encéfalo/metabolismo , Reconhecimento Psicológico/fisiologia , Comportamento Sexual Animal/fisiologia , Comportamento Sexual/fisiologia
6.
Horm Behav ; 161: 105522, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38447330

RESUMO

Testosterone plays an important role as a social hormone. Current evidence suggests that testosterone is positively related to sociosexuality increasing the psychological attitudes toward investing in short-term versus long-term mating and promotes status-seeking behaviors both by dominance and prestige. In addition, the social environment may play an important role in the expression of mating effort through changes in sociosexuality and status-seeking behaviors. However, the causal relationships among the mentioned variables are still debated. We employed a double-blind, placebo-controlled within-individual design, in order to test and integrate the proposed causal relationships between testosterone and social environment over short-term and long-term mating orientation and dominant and prestigious status-seeking behaviors in a sample of 95 young Chilean men. We did not find evidence that the administration of exogenous testosterone increased short-term or decreased long-term mating orientation as expected. Moreover, exogenous testosterone did not affect either aggressive or cooperative behavior failing to support the social status hypothesis. We also did not find any relationship between short or long-term mating orientation with status-seeking behaviors. Finally, we found support for the effect of social environment on sociosexual attitudes but not over status-seeking behaviors. Thus, men reported higher levels of short-term mating orientation in the presence of a woman compared to a man and no differences were found for long-term mating orientation. We argue that sociosexuality may be expressed flexibly, but contextual factors such as the presence of women seem more important than changes in testosterone levels.


Assuntos
Meio Social , Testosterona , Masculino , Humanos , Chile , Método Duplo-Cego , Adulto Jovem , Adulto , Comportamento Sexual/fisiologia , Comportamento Sexual/psicologia , Comportamento Social , Adolescente , Feminino , Predomínio Social
7.
J Sex Res ; 61(2): 216-227, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36652377

RESUMO

The potential link between orgasm consistency (i.e., the percentage of time an individual experiences orgasm during sexual interactions with a partner) and sexual satisfaction in mixed-gender sexual relationships remains underexamined in the literature. We combined two dyadic samples (N = 725 couples) and utilized Dyadic Response Surface Analysis (DRSA) to examine how both partners' orgasm consistency and their discrepancy of orgasm consistency predict both partners' sexual satisfaction. We found that partners' discrepancy in orgasm consistency was not uniquely connected to higher sexual satisfaction for either women or men; rather, the overall consistency of orgasm was connected to better sexual satisfaction for both partners. In addition, there was some evidence tentatively suggesting that men were more likely than women to report lower sexual satisfaction if his partner was orgasming more consistently than he was, as opposed to her reporting lower sexual satisfaction from him orgasming more consistently than she was; though this appears to be a rare scenario as only 5.9% of couples had women who orgasmed more consistently than men. This study may assist educators and clinicians as they help couples consider the sexual scripts surrounding orgasm consistency, and how they can attend to each others' desires in a way that maximizes sexual satisfaction for both partners.


Assuntos
Orgasmo , Parceiros Sexuais , Masculino , Humanos , Feminino , Orgasmo/fisiologia , Satisfação Pessoal , Comportamento Sexual/fisiologia
8.
J Sex Marital Ther ; 50(2): 137-151, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37807833

RESUMO

Virtual Reality (VR)-based treatments for anxiety disorders are efficacious but there is a lack of research examining anxious responses to VR erotica, which could innovate treatments for sexual difficulties. We examined erotica features that elicited anxiety and sexual presence in women. Thirty-eight women viewed erotic videos from different modalities (2D, VR) and points of view (1st, 3rd person) and completed anxiety and sexual presence measures before and after each video. Women experienced greater anxiety for VR than 2D films and reported the most anxiety for VR 1st person films. Sexual presence was affected by modality and point of view.


Assuntos
Literatura Erótica , Realidade Virtual , Humanos , Feminino , Ansiedade , Comportamento Sexual/fisiologia , Transtornos de Ansiedade
9.
Rev. chil. obstet. ginecol. (En línea) ; 88(6): 366-374, dic. 2023. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-1530035

RESUMO

Objetivo: Caracterizar las disfunciones sexuales y estimar la prevalencia en un grupo de mujeres en transición a la menopausia, así como evaluar la frecuencia de la sintomatología climatérica. Método: Estudio de corte transversal, entre 2017 y 2020, que incluyó 411 mujeres en transición a la menopausia, residentes en el Quindío, con pareja estable y actividad sexual en las últimas 6 semanas. Se utilizó como instrumento el FSFI-6 (6-Item Female Sexual Function Index). Resultados: La edad promedio fue de 46,53 ± 2,87 años. La prevalencia de disfunciones sexuales fue del 38,92%, caracterizadas por dificultades con el deseo sexual (38,92%), seguido de dolor/dispareunia (35,52%). El promedio general en la puntuación del FSFI-6, en la totalidad de la población participante, fue de 22,29 ± 0,84 puntos; en la población afectada (< 19 puntos) fue de 15,78 ± 3,94. En los dominios, la puntuación más baja estuvo en el deseo (3,14 ± 0,56). La mediana de disfunciones sexuales por mujer fue de tres (23,84%). Conclusiones: más de un tercio de las mujeres del Quindío en transición a la menopausia presentan disfunciones sexuales; el trastorno más común fue el bajo deseo. Se deben hacer esfuerzos para aumentar la conciencia en los asuntos de salud sexual.


Objective: To characterize sexual dysfunctions and estimate the prevalence in a group of women in transition to menopause, as well as to evaluate the frequency of climacteric symptoms. Method: Cross-sectional study, between 2017 and 2020, included 411 women in transition to menopause, residents of Quindío, with a stable partner and sexual activity in the last 6 weeks. The FSFI-6 (6-Item Female Sexual Function Index) was used as an instrument. Results: The mean age was 46.53 ± 2.87 years. The prevalence of sexual dysfunctions was 38.92%, characterized by difficulties with sexual desire (38.92%), followed by pain/dyspareunia (35.52%). The general average, in the FSFI-6 score, in the entire participating population, was 22.29 ± 0.84 points; while in the affected population (< 19 points), it was 15.78 ± 3.94. In the domains, the lowest score was in desire (3.14 ± 0.56). The median number of sexual dysfunctions per woman was three (present in 23.84%). Conclusions: This study showed that more than one third of the women in Quindío, in transition to menopause, had sexual dysfunctions; the most common type of disorder was low desire. Efforts should be made to increase awareness about sexual health issues.


Assuntos
Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Disfunções Sexuais Fisiológicas/epidemiologia , Menopausa/fisiologia , Comportamento Sexual/fisiologia , Prevalência , Estudos Transversais , Inquéritos e Questionários , Saúde Sexual , Fatores Sociodemográficos
10.
Science ; 382(6669): 399-404, 2023 10 27.
Artigo em Inglês | MEDLINE | ID: mdl-37883550

RESUMO

Sexual, parental, and aggressive behaviors are central to the reproductive success of individuals and species survival and thus are supported by hardwired neural circuits. The reproductive behavior control column (RBCC), which comprises the medial preoptic nucleus (MPN), the ventrolateral part of the ventromedial hypothalamus (VMHvl), and the ventral premammillary nucleus (PMv), is essential for all social behaviors. The RBCC integrates diverse hormonal and metabolic cues and adjusts an animal's physical activity, hence the chance of social encounters. The RBCC further engages the mesolimbic dopamine system to maintain social interest and reinforces cues and actions that are time-locked with social behaviors. We propose that the RBCC and brainstem form a dual-control system for generating moment-to-moment social actions. This Review summarizes recent progress regarding the identities of RBCC cells and their pathways that drive different aspects of social behaviors.


Assuntos
Hipotálamo , Comportamento Social , Animais , Agressão/fisiologia , Hipotálamo/citologia , Hipotálamo/fisiologia , Comportamento Sexual/fisiologia , Masculino , Feminino , Comportamento Materno/fisiologia , Comportamento Paterno/fisiologia , Comportamento Consumatório
11.
J Sex Med ; 20(7): 955-964, 2023 06 28.
Artigo em Inglês | MEDLINE | ID: mdl-37280187

RESUMO

BACKGROUND: Hypoactive sexual desire disorder (HSDD) is characterized by persistently low desire and associated distress. Low desire is one of the most common sexual complaints among men and is associated with poor well-being. Interpersonal factors are key to understanding low desire, yet there are few dyadic studies of HSDD in men. Previous work on genito-pelvic pain and low desire in women has established that greater facilitative (eg, affectionate) partner responses are associated with greater sexual satisfaction and function and that more negative (eg, critical) or solicitous (eg, sympathetic, avoidant) partner responses are associated with lower sexual satisfaction and function. Examining how partner responses are associated with adjustment to HSDD may shed light on the interpersonal dynamics of this understudied sexual dysfunction. AIM: In a cross-sectional study, we examined whether partner responses to low desire in men were associated with sexual desire, sexual satisfaction, and sexual distress for both members of the couple. METHODS: Men with HSDD and their partners (N = 67 couples) completed measures of facilitative, negative, and avoidant partner responses to men's low sexual desire-as perceived by the man with HSDD and self-reported by their partner-and sexual desire, sexual satisfaction, and sexual distress. Data were analyzed using multilevel modeling guided by the actor-partner interdependence model. OUTCOMES: Outcomes included the partner-focused subscale of the Sexual Desire Inventory-2, Global Measure of Sexual Satisfaction, and Sexual Distress Scale-Revised. RESULTS: When men with HSDD perceived more facilitative partner responses to their low desire, they and their partners reported greater sexual satisfaction. When men with HSDD perceived and their partners self-reported more negative partner responses, they each reported lower sexual satisfaction. In addition, when men with HSDD perceived more avoidant partner responses, their partners reported greater sexual distress. Partner responses were not associated with sexual desire for either member of the couple. CLINICAL IMPLICATIONS: Findings support the importance of the interpersonal context for HSDD in men and suggest potential future targets of treatment when working with affected couples. STRENGTHS AND LIMITATIONS: This study is one of the only dyadic studies of HSDD in men, as assessed via clinical interview or self-report symptoms reviewed by the clinical team. Despite our best efforts to recruit this sample over 6 years, the small size limited power to detect all predicted effects. CONCLUSION: More facilitative and fewer negative or avoidant partner responses to low desire are associated with greater sexual well-being in couples coping with HSDD.


Assuntos
Comportamento Sexual , Disfunções Sexuais Psicogênicas , Masculino , Feminino , Humanos , Estudos Transversais , Comportamento Sexual/fisiologia , Libido/fisiologia , Disfunções Sexuais Psicogênicas/diagnóstico , Adaptação Psicológica , Inquéritos e Questionários
12.
J Sex Med ; 20(8): 1094-1102, 2023 07 31.
Artigo em Inglês | MEDLINE | ID: mdl-37295939

RESUMO

BACKGROUND: Although oral contraceptive pills (OCPs) have been associated with decrements in self-reported genital arousal and vaginal lubrication, 1,2 little is known about how these outcomes vary across types of OCPs. AIM: The present study examined differences in physiological lubrication and vaginal blood flow, as well as rates of self-reported vulvovaginal atrophy and female sexual arousal disorder, among women using OCPs with varying androgenic properties. METHODS: Participants in this study were 130 women: 59 naturally cycling control women, 50 women taking androgenic OCPs, and 21 women taking antiandrogenic OCPs. Participants watched sexual films while their sexual arousal responses were measured, completed questionnaires, and participated in a clinical interview. OUTCOMES: Vaginal blood flow, vaginal lubrication, self-reported vulvovaginal atrophy, and female sexual arousal disorder were assessed. RESULTS: Results indicated deficits in vaginal pulse amplitude and lubrication for women taking either form of OCP, with marked inhibitory effects found in women taking antiandrogenic OCPs. Rates of self-reported vulvovaginal atrophy and female sexual arousal disorder were also significantly greater in the antiandrogenic group compared with the control group. CLINICAL IMPLICATIONS: It is recommended that prescribing clinicians consult patients on such physiological effects of OCPs. STRENGTHS AND LIMITATIONS: To our knowledge, this was the first study to compare multiple measures of physiological sexual arousal across groups of women taking OCPs with varying hormonal profiles. Because all OCPs included in this study contained low doses of ethinylestradiol, we were able to identify the specific effects of the androgenic properties on women's sexual arousal responses. However, the self-administered lubrication test strip was subject to user error. Additionally, the generalizability of findings is limited by the largely heterosexual and college-aged sample. CONCLUSION: Compared with naturally cycling women, women taking OCPs that contain antiandrogenic progestins experienced decreased vaginal blood flow and lubrication as well as higher rates of self-reported vaginal bleeding and female sexual arousal disorder.


Assuntos
Excitação Sexual , Disfunções Sexuais Fisiológicas , Feminino , Humanos , Adulto Jovem , Comportamento Sexual/fisiologia , Anticoncepcionais Orais , Vagina/fisiologia , Disfunções Sexuais Fisiológicas/tratamento farmacológico , Atrofia
13.
J Sex Res ; 60(7): 948-968, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37267113

RESUMO

The Dual Control Model proposes that sexual arousal and related processes are dependent on the balance between sexual excitation and sexual inhibition, and that individuals vary in their propensity for these processes. This scoping review provides an overview and discussion of the questionnaires used to measure the propensities for sexual excitation and inhibition, their translation and validation in other languages, and their application in empirical research on topics ranging from sexual desire and arousal, sexual (dys)function, sexual risk taking, asexuality, hypersexuality, and sexual aggression. A total of 152 papers, published between 2009 and 2022 and identified using online databases, were included in this review. The findings, consistent with those reviewed by Bancroft et al. (2009), suggest that sexual excitation is particularly relevant to sexual desire and responsivity and predictive of asexuality and hypersexuality. Sexual inhibition plays a role in sexual dysfunction. sexual risk taking, and sexual aggression, although often in interaction with sexual excitation. Suggestions for the further development of the model and for future studies are discussed.


Assuntos
Transtornos Parafílicos , Disfunções Sexuais Psicogênicas , Humanos , Comportamento Sexual/fisiologia , Libido , Inquéritos e Questionários
14.
Hum Brain Mapp ; 44(6): 2543-2556, 2023 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-36773282

RESUMO

Sex differences in brain activity evoked by sexual stimuli remain elusive despite robust evidence for stronger enjoyment of and interest toward sexual stimuli in men than in women. To test whether visual sexual stimuli evoke different brain activity patterns in men and women, we measured hemodynamic brain activity induced by visual sexual stimuli in two experiments with 91 subjects (46 males). In one experiment, the subjects viewed sexual and nonsexual film clips, and dynamic annotations for nudity in the clips were used to predict hemodynamic activity. In the second experiment, the subjects viewed sexual and nonsexual pictures in an event-related design. Men showed stronger activation than women in the visual and prefrontal cortices and dorsal attention network in both experiments. Furthermore, using multivariate pattern classification we could accurately predict the sex of the subject on the basis of the brain activity elicited by the sexual stimuli. The classification generalized across the experiments indicating that the sex differences were task-independent. Eye tracking data obtained from an independent sample of subjects (N = 110) showed that men looked longer than women at the chest area of the nude female actors in the film clips. These results indicate that visual sexual stimuli evoke discernible brain activity patterns in men and women which may reflect stronger attentional engagement with sexual stimuli in men.


Assuntos
Nível de Alerta , Comportamento Sexual , Humanos , Feminino , Masculino , Nível de Alerta/fisiologia , Comportamento Sexual/fisiologia , Caracteres Sexuais , Prazer , Percepção
15.
Biol Psychol ; 178: 108518, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36801358

RESUMO

Gynandromorphophilia is the sexual attraction and arousal to feminine individuals assigned male at birth, who may or may not have breasts, and who retain their penises. Previous research has suggested that some capacity for gynandromorphophilia may characterize all males who are gynephilic (i.e., sexually attracted and aroused to adult cisgender females). This study examined Canadian cisgender gynephilic men's (n = 65) pupillary responses and subjective ratings of sexual arousal when presented with nude images of cisgender males, cisgender females, and gynandromorphs with, and without, breasts. Subjective arousal to cisgender females was highest, followed by subjective arousal to gynandromorphs with breasts, gynandromorphs without breasts and cisgender males. However, subjective arousal to gynandromorphs without breasts and to cisgender males did not differ significantly. Participants' pupils dilated more to images of cisgender females than to all other stimulus categories. Participants' pupils dilated more to gynandromorphs with breasts than to cisgender males, but pupillary response to gynandromorphs without breasts and cisgender males did not differ significantly. If the capacity for gynandromorphophilic attraction is a cross-culturally invariant aspect of male gynephilia, then these data suggest that this capacity may only extend to gynandromorphs with breasts and not gynandromorphs without breasts.


Assuntos
Heterossexualidade , Comportamento Sexual , Adulto , Recém-Nascido , Humanos , Masculino , Feminino , Canadá , Comportamento Sexual/fisiologia , Nível de Alerta/fisiologia , Vigília
16.
Cephalalgia ; 43(3): 3331024221146989, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36786294

RESUMO

BACKGROUND: Headaches associated with physical exertion include headache precipitated by coughing or other Valsalva maneuvers, headache brought on by prolonged physical exercise, sexual headaches and cardiac cephalalgia. OBJECTIVE: To review and update the clinical characteristics, etiologies, pathophysiology and management of these headaches related to exertion. METHODS: In depth review of the publications, both in PubMed and in the main textbooks, of the different headaches induced by physical exercise. RESULTS: Cough, exercise and sexual headaches can be primary or secondary; therefore, complementary studies are mandatory to rule out structural lesions. However, clinical characteristics, such as an old age and response to indomethacin for cough headache or being a young male and response to beta-blockers for exercise and sexual headaches, plus a normal examination are suggestive of a primary etiology. Etiology for secondary varieties, as posterior fossa lesions for cough headache or vascular malformations for exercise and sexual headaches, are also different. Finally, headache as a distant manifestation of myocardial ischemia, also known as "cardiac cephalalgia", appears at exertion in around two-thirds of cases and typically lasts less than 30 minutes and is relieved by nitroglycerine. CONCLUSIONS: Primary and secondary cough headache can usually be suspected based on clinical characteristics and separated from exercise and sexual headaches, which share many aspects. Cardiac cephalalgia is not necessarily an exertional headache and should be considered in adult patients with short lasting headaches and patent vascular risk factors.


Assuntos
Transtornos da Cefaleia Primários , Esforço Físico , Adulto , Humanos , Masculino , Cefaleia/etiologia , Cefaleia/terapia , Cefaleia/diagnóstico , Comportamento Sexual/fisiologia , Exercício Físico , Transtornos da Cefaleia Primários/diagnóstico , Tosse
17.
Psychoneuroendocrinology ; 147: 105968, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36356514

RESUMO

The use of opioid antagonists is discussed as a feasible and tolerable treatment of Compulsive Sexual Behavior Disorder (CSBD). However, little is known about the influence of opioid blockage on relevant physiological functions such as sexual arousal, pain perception as well as disgust sensitivity during the sexual response cycle (SRC). Healthy participants (N = 64, n = 32 women) were invited to the laboratory twice using a double-blind, randomized cross-over design, with an interval of four weeks between sessions. Participants were randomly subjected to an SRC condition (including an erotic audio play and masturbation to orgasm) and a control condition. Participants received either naltrexone (50 mg, n = 32) or placebo at both sessions. Self-reported sexual arousal and physiological measures of arousal as well as pain perception, odor disgust sensitivity, and prolactin levels were assessed along the SRC. Naltrexone increased prolactin levels and blunted the orgasm-induced prolactin rise. Naltrexone also reduced self-reported sexual arousal throughout the sexual response cycle and blunted respiration rate during masturbation. However, naltrexone did not affect other markers of physiological arousal, pressure pain ratings and odor disgust sensitivity. These findings suggest that naltrexone has an acute negative effect on sexual arousal. Since prolactin levels mediate sexual satiation, we propose that a prolactin-induced increase in sexual satiation could explain the positive effects reported for naltrexone in the treatment of CSBD.


Assuntos
Analgésicos Opioides , Naltrexona , Feminino , Humanos , Naltrexona/farmacologia , Naltrexona/uso terapêutico , Analgésicos Opioides/farmacologia , Prolactina , Comportamento Sexual/fisiologia , Comportamento Compulsivo
18.
J Sex Res ; 60(2): 282-293, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-35731256

RESUMO

Phallometric assessment is used to assess men's sexual interest in children and to assist in risk assessment and treatment planning. A common response pattern, especially when the assessment is conducted in a forensic context, is an indiscriminate pattern of penile responses: No sexual stimulus seems to produce a substantially higher response than another. This indiscriminate response profile could be the result of (1) faking good (in particular, reducing the responses to child stimuli); (2) floor or ceiling effects caused by low or high arousability, or (3) non-exclusivity (the individual is similarly sexually interested in both children and adults). In this study of 2,858 adult male patients who underwent volumetric phallometric assessment for sexual interest in children between 1995 and 2011, we tested these three possible explanations. Results showed support for each of the explanations, but the variance accounted for in response discrimination was quite small when considering each explanation (separately or when considered together). We discuss avenues for future research to better discern the causes of indiscriminate responding in phallometric assessment.


Assuntos
Ereção Peniana , Comportamento Sexual , Adulto , Criança , Humanos , Masculino , Ereção Peniana/fisiologia , Comportamento Sexual/fisiologia , Pênis/fisiologia
19.
Int Urogynecol J ; 34(4): 905-911, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-35798997

RESUMO

INTRODUCTION AND HYPOTHESIS: Studies have shown that athletes have three times increased risk of urinary incontinence compared to non-athletes, in addition to anal incontinence and sexual dysfunction (SD). This study aimed to assess the sexual and pelvic floor muscle (PFM) functions and to compare these variables among female athlete runners with and without SD and to identify predictive factors that may be associated with sexual function among the athletes. METHODS: Cross-sectional study including 90 female runners, who ran ≥ 20 km/week for at least 6 months, had had sexual intercourse in the last 4 weeks and were > 18 years old. PFM function was assessed by vaginal palpation and manometry. Women also answered the International Consultation on Incontinence Questionnaire-Short Form to investigate presence of urinary incontinence. Sexual function was assessed by Female Sexual Function Index (FSFI); total scores ≤ 26.5 were considered to indicate SD. The scores of each FSFI domain and the total score were compared individually between each predictor using simple linear regression. In addition, multiple linear regression analysis was performed. RESULTS: Athletes with SD presented lower PFM strength. The results of the multiple linear regression analysis among all the predictor variables, FSFI domains and total score show that the Modified Oxford Scale is a predictor for the desire, excitation, lubrication, orgasm, pain and total score domains. CONCLUSIONS: Female runners with lower PFM strength presented worse sexual function regardless of age, parity, BMI and running practice time.


Assuntos
Corrida , Disfunções Sexuais Fisiológicas , Incontinência Urinária , Gravidez , Feminino , Humanos , Adolescente , Diafragma da Pelve , Estudos Transversais , Comportamento Sexual/fisiologia , Disfunções Sexuais Fisiológicas/etiologia , Inquéritos e Questionários
20.
Arch Sex Behav ; 52(2): 497-596, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-32016814

RESUMO

Many reviews on sexual arousal in humans focus on different brain imaging methods and behavioral observations. Although neurotransmission in the brain is mainly performed through electrochemical signals, there are no systematic reviews of the electrophysiological correlates of sexual arousal. We performed a systematic search on this subject and reviewed 255 studies including various electrophysiological methods. Our results show how neuroelectric signals have been used to investigate genital somatotopy as well as basic genital physiology during sexual arousal and how cortical electric signals have been recorded during orgasm. Moreover, experiments on the interactions of cognition and sexual arousal in healthy subjects and in individuals with abnormal sexual preferences were analyzed as well as case studies on sexual disturbances associated with diseases of the nervous system. In addition, 25 studies focusing on brain potentials during the interaction of cognition and sexual arousal were eligible for meta-analysis. The results showed significant effect sizes for specific brain potentials during sexual stimulation (P3: Cohen's d = 1.82, N = 300, LPP: Cohen's d = 2.30, N = 510) with high heterogeneity between the combined studies. Taken together, our review shows how neuroelectric methods can consistently differentiate sexual arousal from other emotional states.


Assuntos
Comportamento Sexual , Sexualidade , Humanos , Encéfalo/fisiologia , Emoções , Orgasmo/fisiologia , Comportamento Sexual/fisiologia
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