Sex Differences and Exogenous Estrogen Influence Learning and Brain Responses to Prediction Errors.

Animal studies show marked sex differences as well as effects of estrogen (E2) in the mesocorticolimbic dopaminergic (DA) pathways, which play a critical role in reward processing and reinforcement learning and are also implicated in drug addiction. In this computational pharmacological fMRI study, we investigate the effects of both factors, sex and estrogen, on reinforcement learning and the dopaminergic system in humans; 67 male and 64 naturally cycling female volunteers, the latter in their low-hormone phase, were randomly assigned, double-blind, to take E2 or placebo. They completed a reinforcement learning task in the MRI scanner for which we have previously shown reward prediction error (RPE)-related activity to be dopaminergic. We found RPE-related brain activity to be enhanced in women compared with men and to a greater extent when E2 levels were elevated in both sexes. However, both factors, female sex and E2, slowed adaptation to RPEs (smaller learning rate). This discrepancy of larger RPE-related activity yet smaller learning rates can be explained by organizational sex differences and activational effects of circulating E2, which both affect DA release differently to DA receptor binding capacities.

Psychometric properties of the Alcohol Use Disorders Identification Test (AUDIT) across cross-cultural subgroups, genders, and sexual orientations: Findings from the International Sex Survey (ISS).

INTRODUCTION: Despite being a widely used screening questionnaire, there is no consensus on the most appropriate measurement model for the Alcohol Use Disorders Identification Test (AUDIT). Furthermore, there have been limited studies on its measurement invariance across cross-cultural subgroups, genders, and sexual orientations. AIMS: The present study aimed to examine the fit of different measurement models for the AUDIT and its measurement invariance across a wide range of subgroups by country, language, gender, and sexual orientation. METHODS: Responses concerning past-year alcohol use from the participants of the cross-sectional International Sex Survey were considered (N = 62,943; Mage: 32.73; SD = 12.59). Confirmatory factor analysis, as well as measurement invariance tests were performed for 21 countries, 14 languages, three genders, and four sexual-orientation subgroups that met the minimum sample size requirement for inclusion in these analyses. RESULTS: A two-factor model with factors describing 'alcohol use' (items 1-3) and 'alcohol problems' (items 4-10) showed the best model fit across countries, languages, genders, and sexual orientations. For the former two, scalar and latent mean levels of invariance were reached considering different criteria. For gender and sexual orientation, a latent mean level of invariance was reached. CONCLUSIONS: In line with the two-factor model, the calculation of separate alcohol-use and alcohol-problem scores is recommended when using the AUDIT. The high levels of measurement invariance achieved for the AUDIT support its use in cross-cultural research, capable also of meaningful comparisons among genders and sexual orientations.

Sexual Motivations Underlying Compulsive Sexual Behavior in Women and Men From Germany and Hungary.

BACKGROUND: There are ongoing debates about conflicting models on how to conceptualize compulsive sexual behavior. At the heart of these discussions is the question about the sexual motivations underlying compulsive sexual behavior, as different models assume different motivations. AIM: The aim of the present study was to understand sexual motivations underlying compulsive sexual behavior and their relation to the most prominent conceptualizations of compulsive sexual behavior (eg, compulsive sexual behavior disorder [CSBD], sex addiction). METHODS: We used self-reported data from 2 large samples of Hungarian and German populations (N = 9814). The Sexual Motivation Scale (SexMS), a 24-item self-report measure based on self-determination theory, was used to assess a diverse set of sexual motivations. Compulsive sexual behavior was assessed with the 19-item Compulsive Sexual Behavior Disorder Scale (CSBD-19), that is based on the ICD-11 diagnostic guidelines of CSBD. We used structural equation modeling to examine the hypothesized associations between sexual motivations and compulsive sexual behavior and examined potential gender differences in these associations. OUTCOMES: Compulsive sexual behavior was assessed in relation to a set of sexual motivations. RESULTS: Amotivation had the strongest positive association with compulsive sexual behavior, but integrated, introjected, and intrinsic motivations were also positively related to it. Importantly, these associations did not differ for women and men, and between the 2 samples. CLINICAL IMPLICATIONS: Future research and treatment should also consider sexual motivations that are not listed among the ICD-11 guidelines for CSBD, including high levels of sexual interest, continuing the behavior despite having little satisfaction from it and coping with sex. STRENGTHS & LIMITATIONS: Although we used large samples of general populations in 2 Western countries, this motivational background of compulsive sexual behavior awaits replication in a clinical sample of individuals experiencing CSBD. CONCLUSION: The identified sexual motivations underlying compulsive sexual behavior are relevant for assessing and treating patients as motivations may be integrated into psychotherapeutic interventions. Koós M, Fuss J, Klein V, et al. Sexual Motivations Underlying Compulsive Sexual Behavior in Women and Men From Germany and Hungary. J Sex Med 2022;19:170-181.

Reliability of repeated exposure to the human elevated plus-maze in virtual reality: Behavioral, emotional, and autonomic responses.

Approach-avoidance conflicts are a hallmark of anxiety-related behaviors. A gold standard for assessing anxiety-related behaviors in rodents is the elevated plus-maze (EPM), which was recently translated to humans using immersive virtual reality. Repeated behavioral testing is particularly interesting for clinical and pharmacological research in humans but could be limited by habituation effects. Here, we tested whether comparable strategies that are used in rodents (different environments and inter-trial interval of 28 days) are sufficient to avoid habituation or sensitization effects on the EPM, making it possible to perform repeated measurement of anxiety-related behavior in humans. Moreover, we developed two novel virtual environments for repeated testing to explore whether a scenario resembling the real world is superior to a video game-like EPM in terms of lifelike physiological, emotional, and behavioral responses. On a behavioral level, no significant differences but a high correlation between first and repeated exposure to the human EPM independent of EPM version were found. On a psychophysiological level, salivary alpha-amylase, skin-conductance, and respiratory frequency increased at first and second exposure independent of EPM version. However, at repeated exposure, skin-conductance and heart rate showed indicators for anticipatory anxiety and a small sensitization effect, while no effect of real-world resemblance on these physiological measures was found. This was also reflected in slightly higher subjective anxiety levels at second exposure, although subjective anxiety still correlated strongly between first and second exposure. In conclusion, the human EPM can be used for longitudinal assessments of human anxiety-related behavior when strategies to avoid habituation and sensitization are considered.

Body Image and Sexual Desire in the Context of Gender Affirming Therapy: Results of a Cross-sectional Multi-centered Transgender Study.

It has been posited that gender-affirming treatment (GAT) can have an influence on body image and sexual desire in trans people. This study aims to examine associations between GAT and sexual desire as well as whether body image mediates the influences of gender-affirming hormone therapy (GAHT) or gender-affirming surgery (GAS) on sexual desire. A total of 210 individuals diagnosed with gender dysphoria (n = 105 of each gender) were assessed via self-assessment questionnaires in a cross-sectional study. Associations between GAT and sexual desire were investigated via multivariate analyses of variance. Mediation analyses were conducted to clarify associations between GAHT/GAS, body image, and sexual desire. GAHT was associated with increased sexual desire only in transmen. GAS had no significant effect on sexual desire in transmen and transwomen. Body image did not mediate the influence of GAHT or GAS on sexual desire in both groups. GAHT and GAS had significant direct effects on body image in both genders, whereas body image showed no significant direct effect on sexual desire. The results indicate that effects of GAT on sexual desire seem to be attributable to other factors than body image, such as the hormonal influence of testosterone in transmen.

[Compulsory medication of people with mental disorders in the penal system : The situation in Germany and recommendations for clinical practice]. / Zwangsmedikation psychisch erkrankter Menschen im Justizvollzug : Situation in Deutschland und Empfehlungen für die Praxis.

BACKGROUND: Coercive medical measures always represent an encroachment on the patient's basic right to physical integrity and right to self-determination. If a patient is imprisoned, his basic rights are already severely restricted, and the coercive measure must also take place in a correctional facility. This amounts to a special challenge for everyone involved-but especially for the psychiatrist in charge. OBJECTIVES AND METHODS: This article is aimed at describing the psychiatric care of people with mental disorders in prisons, explaining the legal requirements for compulsory medication and giving recommendations for suitable conditions. RESULTS AND CONCLUSIONS: In Germany, there is no legally regulated health-care solution for people with mental disorders in custody in accordance with the laws on the mentally ill of the German federal states (Psychisch-Kranken-Gesetze). Therefore, in the case of serious mental disorders, imprisoned patients cannot be regularly provided with inpatient psychiatric care. As a result, compulsory medication within the correctional system must be considered if the course of the mental disorder is unfavorable. Compulsory medication in the German prison system has a special position compared with compulsory medication in psychiatric clinics, as doctors in most federal states can prescribe such medication without judicial involvement. The state legislators should check whether a legal adjustment would be necessary or helpful here. As the circumstances (legal and care-related) for imprisoned patients differ greatly from those of patients in clinics, the general conditions for compulsory medication should be carefully considered. We recommend consulting ethical case counseling if the decision is made without judicial involvement, and moving imprisoned patients to a psychiatric or at least to a medical ward before the administration of compulsory medication.

Sexual Behavior, Desire, and Psychosexual Experience in Gynephilic and Androphilic Trans Women: A Cross-Sectional Multicenter Study.

BACKGROUND: One of the most prominent etiological theories of gender incongruence in trans women proposes a paraphilic erotic target location error (ie, autogynephilia) as a causal factor in gynephilic (ie, exclusively gynephilic and bisexual) trans women. We hypothesized that a paraphilic erotic target location should manifest itself in various aspects of sexual behavior, solitary and dyadic sexual desire, and psychosexual experience. AIM: To compare sexual behavior, sexual desire, and psychosexual experience of exclusively gynephilic and bisexual trans women with that of androphilic trans women to explore whether their sexuality differs substantially. METHODS: Trans women diagnosed with gender dysphoria (Diagnostic and Statistical Manual of Mental Disorders-5) were recruited at 4 transgender healthcare centers in Germany. The present study analyzed items on sexual behavior, desire, and experience of a self-report questionnaire, collected as part of a cross-sectional multicenter study. MAIN OUTCOMES: Multiple aspects of sexuality were examined using self-constructed items. Sexual desire was measured using the Sexual Desire Inventory and psychosexual experience using the Multidimensional Sexuality Questionnaire. RESULTS: Significantly more exclusively gynephilic than androphilic trans women reported a history of sexual arousal in relation to cross-dressing. However, little evidence was found that gynephilic and androphilic sexual desire, behavior, and psychosexual experience differ profoundly. Interestingly, a statistically non-significant trend indicated that gynephilic trans women who had not yet undergone gender affirming surgery showed the highest levels of sexual desire (solitary and dyadic), whereas the opposite was the case for androphilic trans women. CLINICAL TRANSLATION: Data of this study indicate that sexual orientation does not appear to be a good predicator for sexual behavior, desire, and psychosexual experience in trans women. STRENGTHS AND LIMITATIONS: We investigated sexual desire and experience using standardized and evaluated measures such as the Sexual Desire Inventory and Multidimensional Sexuality Questionnaire. Future studies with a larger sample size should investigate how different gender affirming medical intervention might have diverging influences on sexual behavior, desire, and experience. CONCLUSION: Ultimately, this study found little evidence for the hypothesis that sexual behavior, sexual desire, and psychosexual experience differ substantially in gynephilic (exclusively gynephilic and bisexual) and androphilic trans women. Laube JS, Auer M, Biedermann SV, et al. Sexual Behavior, Desire, and Psychosexual Experience in Gynephilic and Androphilic Trans Women: A Cross-Sectional Multicenter Study. J Sex Med 2020;17:1182-1194.

Self-Reported Childhood Maltreatment and Erotic Target Identity Inversions Among Men with Paraphilic Infantilism.

Adults with paraphilic infantilism may desire to wear diapers or engage in infant-like role play. Erotic target identity inversions (ETII) and childhood maltreatment have been hypothesized to cause regressive interests. To evaluate these two etiological hypotheses, we surveyed the online adult baby/diaper lover community. Data from 1904 cis-gender men revealed a prevalence of pedophilic interests comparable with the general male population, arguing against ETIIs as common in paraphilic infantilism. In contrast, self-reported childhood neglect and abuse were highly prevalent, suggesting that infantilism might be correlated with childhood maltreatment. Additionally, some participants described repetition and/or sexualization of negative childhood experiences.

Desire to Have Children Among Transgender People in Germany: A Cross-Sectional Multi-Center Study.

BACKGROUND: Many trans individuals undergo medical interventions that result in irreversible loss of fertility. Little is known about their desire to have children and attitudes toward fertility preservation options. AIM: To study how the desire for children and the use of fertility preservation options varies among trans women and trans men in different transitioning stages in Germany. METHODS: In this cross-sectional multi-center study, N = 99 trans women and N = 90 trans men were included. Of these, 26 of each sex were just about to start medical treatment. OUTCOMES: Outcome parameter were the prevalence and determinants of a desire to have children in trans persons. RESULTS: Before treatment, a desire for children was significantly higher in trans men compared to trans women (P = .016). In contrast, in those who had already started treatment, a current desire to have children was equally present in about one fourth of participants of both genders while the interest in having children in the future was significantly higher in trans women (69.9%) than in trans men (46.9%; P = .034). Although 76.1% of trans women and 76.6% of trans men indicated that they had at least thought about preserving germ cells before starting medical transition, only 9.6% of trans women and 3.1% of trans men had put this idea into practice. Most trans men in both groups indicated that insemination of a female partner with sperm from an unrelated donor was a suitable option to fulfill their child wish, potentially explaining their low interest in preserving their own germ cells. Finally, a logistic regression analysis accounting for potential confounders revealed that overall trans women were more than twice as likely to have a current desire to have children (odds ratio 2.58), and this wish was on average 5.3% lower with each year of increasing age. CLINICAL TRANSLATION: A low level of fertility preservation among trans persons is contrasted by a high level of desire for children. This highlights the importance of counseling trans individuals regarding fertility preservation options. CONCLUSIONS: To our knowledge, this is the first study that addresses desire to have children in a clinical sample of trans women. It is also the first that investigates this issue among trans men who have not started medical treatment, and the first comparison of both genders. A limitation for the generalization of our results is the special legal context in Germany that forbids oocyte donation for reciprocal in vitro fertilization. Reproductive desire is high among trans individuals, but the use of reproductive options is surprisingly low. Auer MK, Fuss J, Nieder TO, et al. Desire to Have Children Among Transgender People in Germany: A Cross-Sectional Multi-Center Study. J Sex Med 2018;15:757-767.

A Cross-Sectional Multicenter Study of Multidimensional Body Image in Adolescents and Adults with Gender Dysphoria Before and After Transition-Related Medical Interventions.

Persistent feelings of gender dysphoria (GD) are accompanied by distress and body dissatisfaction in most clinically referred adolescents and adults. Transition-related medical interventions (e.g., puberty suppression, hormones, or surgery) may alleviate body dissatisfaction. The aim of the present cross-sectional study was to compare multidimensional body image across clinically referred adolescents and adults undergoing different transition-related medical interventions. Two clinical samples of adolescents (n = 82) and adults (n = 120) referred to specialized departments of four different transgender health services in Germany participated in the study. In total, 202 individuals from the female-to-male (FtM individuals) and male-to-female (MtF individuals) spectrum aged 14-74 years were included at different stages of their transition. Four scales assessing multidimensional aspects of body image (measured by the Body Image Assessment Questionnaire, FBeK) were compared across three groups: sample, gender, and medical interventions (while controlling for age and treatment duration). The results indicated less favorable body image scores compared with the norm in both adolescents and adults with GD. Individuals who had undergone transition-related medical interventions presented a significantly better body image on two of the four scales. Differences according to gender and age were also present. These findings suggest that medical interventions, especially gender-affirming hormones and surgery, are generally beneficial to the body image in individuals with GD. However, not all of the less favorable outcomes in multidimensional body image were positively influenced by the treatment conditions and may thus benefit from additional integrative counseling before and during transition.

A runner's high depends on cannabinoid receptors in mice.

Exercise is rewarding, and long-distance runners have described a runner's high as a sudden pleasant feeling of euphoria, anxiolysis, sedation, and analgesia. A popular belief has been that endogenous endorphins mediate these beneficial effects. However, running exercise increases blood levels of both ß-endorphin (an opioid) and anandamide (an endocannabinoid). Using a combination of pharmacologic, molecular genetic, and behavioral studies in mice, we demonstrate that cannabinoid receptors mediate acute anxiolysis and analgesia after running. We show that anxiolysis depends on intact cannabinoid receptor 1 (CB1) receptors on forebrain GABAergic neurons and pain reduction on activation of peripheral CB1 and CB2 receptors. We thus demonstrate that the endocannabinoid system is crucial for two main aspects of a runner's high. Sedation, in contrast, was not influenced by cannabinoid or opioid receptor blockage, and euphoria cannot be studied in mouse models.

An elevated plus-maze in mixed reality for studying human anxiety-related behavior.

BACKGROUND: A dearth of laboratory tests to study actual human approach-avoidance behavior has complicated translational research on anxiety. The elevated plus-maze (EPM) is the gold standard to assess approach-avoidance behavior in rodents. METHODS: Here, we translated the EPM to humans using mixed reality through a combination of virtual and real-world elements. In two validation studies, we observed participants' anxiety on a behavioral, physiological, and subjective level. RESULTS: Participants reported higher anxiety on open arms, avoided open arms, and showed an activation of endogenous stress systems. Participants' with high anxiety exhibited higher avoidance. Moreover, open arm avoidance was moderately predicted by participants' acrophobia and sensation seeking, with opposing influences. In a randomized, double blind, placebo controlled experiment, GABAergic stimulation decreased avoidance of open arms while alpha-2-adrenergic antagonism increased avoidance. CONCLUSION: These findings demonstrate cross-species validity of open arm avoidance as a translational measure of anxiety. We thus introduce the first ecologically valid assay to track actual human approach-avoidance behavior under laboratory conditions.

Masturbation to Orgasm Stimulates the Release of the Endocannabinoid 2-Arachidonoylglycerol in Humans.

BACKGROUND: Endocannabinoids are critical for rewarding behaviors such as eating, physical exercise, and social interaction. The role of endocannabinoids in mammalian sexual behavior has been suggested because of the influence of cannabinoid receptor agonists and antagonists on rodent sexual activity. However, the involvement of endocannabinoids in human sexual behavior has not been studied. AIM: To investigate plasma endocannabinoid levels before and after masturbation in healthy male and female volunteers. OUTCOMES: Plasma levels of the endocannabinoids 2-arachidonoylglycerol (2-AG), anandamide, the endocannabinoid-like lipids oleoyl ethanolamide and palmitoyl ethanolamide, arachidonic acid, and cortisol before and after masturbation to orgasm. METHODS: In study 1, endocannabinoid and cortisol levels were measured before and after masturbation to orgasm. In study 2, masturbation to orgasm was compared with a control condition using a single-blinded, randomized, 2-session crossover design. RESULTS: In study 1, masturbation to orgasm significantly increased plasma levels of the endocannabinoid 2-AG, whereas anandamide, oleoyl ethanolamide, palmitoyl ethanolamide, arachidonic acid, and cortisol levels were not altered. In study 2, only masturbation to orgasm, not the control condition, led to a significant increase in 2-AG levels. Interestingly, we also found a significant increase of oleoyl ethanolamide after masturbation to orgasm in study 2. CLINICAL TRANSLATION: Endocannabinoids might play an important role in the sexual response cycle, leading to possible implications for the understanding and treatment of sexual dysfunctions. STRENGTHS AND LIMITATIONS: We found an increase of 2-AG through masturbation to orgasm in 2 studies including a single-blinded randomized design. The exact role of endocannabinoid release as part of the sexual response cycle and the biological significance of the finding should be studied further. Cannabis and other drug use and the attainment of orgasm were self-reported in the present study. CONCLUSION: Our data indicate that the endocannabinoid 2-AG is involved in the human sexual response cycle and we hypothesize that 2-AG release plays a role in the rewarding consequences of sexual arousal and orgasm. Fuss J, Bindila L, Wiedemann K, et al. Masturbation to Orgasm Stimulates the Release of the Endocannabinoid 2-Arachidonoylglycerol in Humans. J Sex Med 2017;14:1372-1379.

Restricted vs. unrestricted wheel running in mice: Effects on brain, behavior and endocannabinoids.

Beneficial effects of voluntary wheel running on hippocampal neurogenesis, morphology and hippocampal-dependent behavior have widely been studied in rodents, but also serious side effects and similarities to stereotypy have been reported. Some mouse strains run excessively when equipped with running wheels, complicating the comparability to human exercise regimes. Here, we investigated how exercise restriction to 6h/day affects hippocampal morphology and metabolism, stereotypic and basal behaviors, as well as the endocannabinoid system in wheel running C57BL/6 mice; the strain most commonly used for behavioral analyses and psychiatric disease models. Restricted and unrestricted wheel running had similar effects on immature hippocampal neuron numbers, thermoregulatory nest building and basal home-cage behaviors. Surprisingly, hippocampal gray matter volume, assessed with magnetic resonance (MR) imaging at 9.4 Tesla, was only increased in unrestricted but not in restricted runners. Moreover, unrestricted runners showed less stereotypic behavior than restricted runners did. However, after blockage of running wheels for 24h stereotypic behavior also increased in unrestricted runners, arguing against a long-term effect of wheel running on stereotypic behavior. Stereotypic behaviors correlated with frontal glutamate and glucose levels assessed by 1H-MR spectroscopy. While acute running increased plasma levels of the endocannabinoid anandamide in former studies in mice and humans, we found an inverse correlation of anandamide with the daily running distance after long-term running. In conclusion, although there are some diverging effects of restricted and unrestricted running on brain and behavior, restricted running does not per se seem to be a better animal model for aerobic exercise in mice.

Neurogenetic evidence in the courtroom: a randomised controlled trial with German judges.

BACKGROUND: Prominent court decisions and recent research suggest that introduction of neurogenetic evidence, for example, monoamine oxidase A alleles, may reduce the sentence of convicted psychopaths. Here, we are aiming to demonstrate that judges' response to neurogenetic evidence is highly influenced by the legal system in which they operate. METHODS: Participating German judges (n=372) received a hypothetical case vignette of aggravated battery, and were randomly assigned to expert testimonies that either involved a neurogenetic explanation of the offender's psychopathy or only a psychiatric diagnosis of psychopathy. Testimonies were presented either by the prosecution or defence. RESULTS: Neurogenetic evidence significantly reduced judges' estimation of legal responsibility of the convict. Nevertheless, the average prison sentence was not affected in the German legal system. Most interestingly, analysis of judges' reasoning revealed that neurogenetic arguments presented by the prosecution significantly increased the number of judges (23% compared with ∼ 6%) ordering an involuntary commitment in a forensic psychiatric hospital. Such an involuntary commitment due to diminished or absent legal responsibility may last much longer than a prison sentence in the German legal system. CONCLUSIONS: Our data, thus, demonstrate the socially contingent nature of legal responses to neurogenetic evidence in criminal cases.

Deep brain stimulation to reduce sexual drive.

To date there are few treatment options to reduce high sexual drive or sexual urges in paraphilic patients with a risk for sexual offending. Pharmacological therapy aims to reduce sexual drive by lowering testosterone at the cost of severe side effects. We hypothesize that high sexual drive could also be reduced with deep brain stimulation (DBS) of circuits that generate sexual drive. This approach would help to avoid systemic side effects of antiandrogenic drug therapies. So far the best investigated target to reduce sexual drive is the ventromedial hypothalamus, which was lesioned unilaterally and bilaterally by stereotaxic interventions in paraphilic patients in the 1970s. Here, we discuss DBS as a treatment strategy in patients with severe paraphilic disorders with a serious risk of sexual offending. There are profound ethical and practical issues associated with DBS treatment of paraphilic patients that must be solved before considering such a treatment approach.

Exercise boosts hippocampal volume by preventing early age-related gray matter loss.

Recently, a larger hippocampus was found in exercising mice and men. Here we studied the morphological underpinnings in wheel running mice by longitudinal magnetic resonance imaging. Voxel-based morphometry revealed that running increases hippocampal volume by inhibiting an early age-related gray matter loss. Disruption of neurogenesis-related neuroplasticity by focalized irradiation is sufficient to block positive effects of exercise on macroscopic brain morphology.

The effect of short-term increase of estradiol levels on sexual desire and orgasm frequency in women and men: A double-blind, randomized, placebo-controlled trial.

Estradiol (E2) has been implicated in sexual functioning in both sexes. E2 levels change distinctively over the menstrual cycle, peaking around ovulation. Data on short-term effects of fluctuating E2 levels on sexual desire are however sparse and mostly based on observational studies. To fill this gap, we ran a double-blind, randomized, placebo-controlled study (N = 126) to investigate the effects of a short-term increase in E2 on sexual desire and orgasm frequency in healthy, young men and women. Circulating E2 levels were elevated through estradiol valerate (E2V) administered over two consecutive days to simulate the rise in E2 levels around ovulation. E2V had no effect on orgasm frequency and only minor effects on sexual desire. On average, the administered E2V dampened change in sexual desire compared to untreated participants with comparable baseline sexual desire in such a way that sexual desire was slightly reduced even in those with higher baseline sexual desire. These findings suggest that short-term increases in E2 have little effect on sexual function and are unlikely to explain the increase in sexual desire around ovulation.

Social preferences and psychopathy in a sample of male prisoners-a pilot study.

Social decisions are influenced by a person's social preferences. High psychopathy is defined by antisocial behaviour, but the relationship between psychopathy and social preferences remains unclear. In this study, we used a battery of economic games to study social decision-making and social preferences in relation to psychopathy in a sample of 35 male prison inmates, who were arrested for sexual and severe violent offenses (mean age = 39 years). We found no evidence for a relationship between social preferences (measured with the Dictator and Ultimatum Games, Social Value Orientation, and one-shot 2 × 2 games) and psychopathy (measured by the overall Hare Psychopathy Checklist-Revised score and both factors). These results are surprising but also difficult to interpret due to the small sample size. Our results contribute to the ongoing debate about psychopathy and social decision-making by providing crucial data that can be combined with future datasets to reach large sample sizes that can provide a more nuanced understanding about the relationship between psychopathy and social preferences.

Delay discounting of protected sex and compulsive sexual behavior in women with borderline personality disorder.

Background and aims: Borderline personality disorder (BPD) is a complex mental health condition characterized by emotional dysregulation, impulsivity, and unstable interpersonal relationships. Some individuals with BPD regularly engage in sexual risk behavior such as unprotected sex and are at higher risk of contracting sexually transmitted infections. This study investigates discounting of condom- or dental dam-protected sex in women with BPD compared with a control group. Methods: Data were collected from 40 women diagnosed with BPD and 40 healthy controls with an average age of 27.28 years (SD = 6.14) using the Sexual Delay Discounting Task (SDT), the Borderline Symptom List-23 (BSL-23), and the Compulsive Sexual Behavior Disorder Scale-19 (CSBD-19). Results: Women with BPD were less likely to use an immediately available condom or dental dam and more likely to discount safer sex than controls. Partner desirability and the perceived STI risk influenced the participants' likelihood of having protected sex. Women with BPD showed more symptoms of compulsive sexual behavior (CSB) than controls. However, sexual delay discounting was not significantly correlated with borderline symptoms or CSB in the BPD group. Discussion and conclusions: These findings contribute to our understanding of sexual impulsivity in women with BPD and highlight the omission and delayed availability of safety measures as important contributors to sexual risk behavior and STI risk in women. Impulsive sexual behavior, as well as the accompanying sexual health concerns, should receive special attention in the treatment of women with BPD.