When he smiles: Attractiveness preferences for male faces expressing emotions.

The impact of sexual dimorphism on facial attractiveness has been controversial owing to contradictory results, particularly in studies on female preferences. Given that sexually dimorphic facial features, especially more masculine ones, have been previously related to the perception of anger, we investigated the bi-directional influence of emotional expressions and facial masculinity and explored their impact on women's preferences for facial masculinity. We confirmed the effect of facial sexual dimorphism on the perception of emotional cues (happiness and anger) and explored whether smiling or angry expressions influence women's perception of masculinity in male faces. Additionally, we examined women's preferences for emotionally expressive male faces altered along a continuum of masculinity. The results showed that masculinised faces are perceived as angrier, while feminised faces are perceived as happier (Experiment 1), and that angry faces are perceived as more masculine when compared with happy faces (Experiment 2). It is noteworthy that our Experiment 3 uncovered a pivotal finding: women prefer reduced feminisation in happy faces compared with neutral/angry faces. This suggests that the avoidance response observed towards masculinity is attenuated by a smiling expression. The current study introduces a new perspective to be considered when exploring the role of facial masculinity in women's attractiveness preferences.

The Role of Men's Sexual Beliefs on Sexual Function/Dysfunction: A Systematic Review.

Cognitive models of sexual dysfunction postulate that inflexible, unrealistic, and erroneous sexual beliefs work as a vulnerability factor for the development of sexual dysfunctions and existing studies give some support to this hypothesis. However, to date, there is no published systematic review of studies testing the association between men's sexual beliefs and sexual functioning. This systematic review was conducted from searches using EBSCO, PubMed, and Web of Science databases identifying peer-reviewed studies and gray literature sources from inception to November 2021. Twenty cross-sectional studies, assessing correlations between the degree of endorsement of sexual beliefs and sexual functioning and comparing endorsement of sexual beliefs in men with and without sexual problems were included. Despite the small effect sizes, results indicate that higher endorsement of inflexible/unrealistic/erroneous sexual beliefs is associated with poorer sexual functioning and that men presenting with sexual problems tend to report higher endorsement of these sexual beliefs. Further research with clinical samples as well as longitudinal studies are necessary to explore the ways these associations emerge and develop. The state of evidence on this research topic, including gaps and limitations, is discussed.

Automatic attention to sexual stimuli: exploring the role of neuroticism and sexual excitation/inhibition through event-related potentials.

BACKGROUND: Previous findings have shown that neuroticism is a higher-order vulnerability factor in the development and maintenance of sexual dysfunctions and can have an impact on the attentional processing of sexual stimuli; however, the influence of psychosexual dimensions on the early automatic phases of such cognitive processes has not been established yet. AIM: To examine the mediating role of sexual inhibition/excitation propensity in the relationship between neuroticism and automatic attention to visual erotica and to identify the neuroelectric correlates of such a process. METHODS: We analyzed the answers provided by 58 individuals on the Neuroticism subscale of the NEO Personality Inventory-Revised and the Sexual Inhibition/Excitation Scales. Event-related potentials (ERPs) were recorded during a modified oddball paradigm containing romantic and sexually explicit pictures. Parallel mediations were performed to simultaneously test the mediating role of sexual inhibition/excitation in the relationship between neuroticism and each ERP. OUTCOMES: Three early attention ERP components (P1, P2, and N2) were assessed. RESULTS: Findings revealed an indirect effect of neuroticism on automatic attention, via sexual inhibition due to threat of performance failure (SIS1), for romantic and sexually explicit stimuli. This effect was significant only for component N2, which showed increased amplitudes and earlier latencies in participants with high SIS1. CLINICAL IMPLICATIONS: Sexual stimuli, due to their emotional valence and arousal potential, might be perceived as virtually threatening by individuals with neuroticism, who may benefit from strategies that decrease hyperarousal and sympathetic activation. STRENGTHS AND LIMITATIONS: This was one of the first studies to analyze neuroelectric activity associated with automatic attention toward sexual stimuli in relation to personality and sexual excitation/inhibition propensity. Nevertheless, the limited number of participants demands caution in generalizing the results. CONCLUSION: These results provide a better understanding of the relationship between personality and sexual cognition and open new avenues of research in relation to other automatic cognitive phenomena related to human sexual behavior.

Human metabolic emissions of carbon dioxide and methane and their implications for carbon emissions.

Carbon dioxide (CO2) and methane (CH4) are important greenhouse gases in the atmosphere and have large impacts on Earth's radiative forcing and climate. Their natural and anthropogenic emissions have often been in focus, while the role of human metabolic emissions has received less attention. In this study, exhaled, dermal and whole-body CO2 and CH4 emission rates from a total of 20 volunteers were quantified under various controlled environmental conditions in a climate chamber. The whole-body CO2 emissions increased with temperature. Individual differences were the most important factor for the whole-body CH4 emissions. Dermal emissions of CO2 and CH4 only contributed ~3.5% and ~5.5% to the whole-body emissions, respectively. Breath measurements conducted on 24 volunteers in a companion study identified one third of the volunteers as CH4 producers (exhaled CH4 exceeded 1 ppm above ambient level). The exhaled CH4 emission rate of these CH4 producers (4.03 ± 0.71 mg/h/person, mean ± one standard deviation) was ten times higher than that of the rest of the volunteers (non-CH4 producers; 0.41 ± 0.45 mg/h/person). With increasing global population and the expected large reduction in global anthropogenic carbon emissions in the next decades, metabolic emissions of CH4 (although not CO2) from humans may play an increasing role in regional and global carbon budgets.

A Longitudinal Study on Maternal Depressive Symptoms During the COVID-19 Pandemic: The Role of Strict Lockdown Measures and Social Support.

Objectives: This study examined the trajectory of perinatal depressive symptoms in Portuguese women during the COVID-19 pandemic and the role of individual, relational, and contextual risk and protective factors. Methods: This 3-wave longitudinal study followed 290 pregnant women from the third trimester of pregnancy until 6-months postpartum. Women self-reported on depressive symptoms, psychological (anxiety, perceived stress, mindfulness), relational (perceived social support, dyadic adjustment, sexual wellbeing), and contextual (lockdown status) factors. Results: Women who were under strict lockdown presented significantly higher scores of depressive symptoms at baseline (by 1.38 EPDS points) than women who were not under strict lockdown measures. Mixed Growth Models showed that trajectories of depressive symptoms were explained by differences in women's baseline depression. Differences in women's depressive symptoms at baseline were mainly explained by higher anxiety and lower social support (22% and 24% for women under lockdown; 39% and 6% for women not on lockdown, respectively). Conclusion: Preventative interventions targeted at pregnant women should aim to reduce anxiety and enhance women's social support to prevent depression in pregnancy and postpartum during the COVID-19 pandemic.

Sexual Health and the Pandemic Crisis: Testing the Role of Psychological Vulnerability/Protective Factors on Sexual Functioning and Sexual Distress During a Critical Life Period in Portugal.

Recent findings suggest that the current COVID-19 pandemic has a potential negative impact in several areas of life, including sexual health. However, less is known about the psychological dimensions that may work as vulnerability/protective factors for the development of sexual problems in the current pandemic. The current study used a longitudinal design to examine the role played by personality trait factors (neuroticism, extraversion) as well as psychosexual factors (sexual beliefs) in predicting sexual functioning and sexual distress across time during the current pandemic crisis. A total of 528 individuals (337 women) completed a web survey assessing sexual health indicators and psychological factors. The first wave was conducted during the confinement period in Portugal (N = 528) between May and June 2020 and the second four months later (N = 146), when strict confinement rules were over. Generalized estimating equations (GEE) were used to examine the ability of psychological factors to predict sexual functioning and distress across time, while controlling for age and gender. Results indicated that sexual distress at time point 2 was lower than during confinement, and men had lower levels of sexual functioning post-confinement while no significant difference was observed for women. Moreover, higher levels of neuroticism and age-related beliefs significantly predicted lower sexual functioning as well as higher sexual distress, whereas lower levels of extraversion predicted lower sexual functioning after controlling for age and gender effects. Findings support the role of psychological vulnerability factors to predict sexual problems across time and may have important implications in the prevention and treatment of sexual dysfunctions.

Adapting to Uncertainty: A Mixed-Method Study on the Effects of the COVID-19 Pandemic on Expectant and Postpartum Women and Men.

Detrimental biopsychosocial effects of the COVID-19 pandemic on populations have been established worldwide. Despite research indicating that the transition to parenthood is a vulnerable period for maternal and paternal health, an in-depth examination of the specific challenges the pandemic poses for new mothers and fathers is still lacking. Using a mixed-method design, we investigated individual and relational well-being of women and men who were expecting their first child during the first months of the COVID-19 pandemic in Portugal and its associations with contextual, individual, and relational factors. Adults older than 18 (n = 316, 198 women) from early pregnancy to 6-months postpartum completed a cross-sectional online survey assessing sociodemographic, individual (depression, anxiety, perceived stress), and relational (dyadic adjustment, perceived social support) self-report measures. From those, 99 participants (64 women) responded to an open-ended question and reported perceived changes in their couple's relationship due to the pandemic. Men responding during strict lockdown measures reported significantly higher levels of perceived stress relative to those men who were not under lockdown. Overall, women reported higher levels of depression and greater social support than men. Qualitative analyses resulted in two main themes: Individual Changes and Relational Changes. These themes aggregate personal concerns and experiences (e.g., worsening of mental health, uncertainty about the future, lack of freedom) interrelated with relational issues (e.g., increased togetherness, avoidance of physical contact, and increased availability for parenthood during lockdown). The prevalence of negative effects (58.6%) exceeded the described positive effects (28.3%), and 13.1% described both positive and negative effects of the pandemic. Current findings offer grounds for important evidence-based strategies to mitigate the potential adverse effects of the current pandemic on new mothers' and fathers' individual and relational well-being.

Neuroticism and Attention Toward Sexual and Non-Sexual Images During an Oddball Task: Evidence from Event-Related Potentials.

While previous research has argued that neuroticism is a vulnerability factor for the experience of sexual difficulties, the basic cognitive processes associated with the impact of such a personality trait on the processing of sexually explicit stimuli are less understood. The current study examined the influence of neuroticism on the attentional processes and its neurophysiological correlates during the perception of sexual and non-sexual images. Event-related potentials from 30 women and 28 men were recorded during a modified oddball paradigm in which participants of both sexes visualized stimuli from three different categories (sexual, non-sexual positive, and non-sexual negative), and two arousal levels (high and low arousal). A P1 latency effect was found for female participants, in which high neuroticism was associated with longer latencies for pornographic compared to romantic sexual images. Higher levels of neuroticism were also associated with higher P3 amplitudes for highly arousing images, with both sexual and non-sexual content. Results were interpreted in light of the information processing model of sexual arousal and showed that neuroticism seems to impact both automatic and conscious pathways of processing of sexual stimuli.

The Relationship Between COVID-19 Confinement, Psychological Adjustment, and Sexual Functioning, in a Sample of Portuguese Men and Women.

BACKGROUND: Past research has revealed the detrimental effects of social isolation and physical distancing measures in health related outcomes. However, only recently COVID-19 confinement measures provided a context to test whether such detrimental effects exist in the human sexuality domain. AIM: This study was aimed at testing the relationship between COVID-19 confinement levels and sexual functioning domains in men and women, while accounting for the mediating role of psychological adjustment during lockdown. METHODS: Two hundred and forty five men and 417 women completed a web survey on the effects of COVID-19 in sexual health. The reference period includes the first confinement in Portugal (March 19-June 1, 2020). Data were handled under Hays' procedures for simple mediation analysis. OUTCOMES: Measurement outcomes included self-reported levels of confinement, IIEF and FSFI scores, and psychological adjustment during lockdown. RESULTS: Psychological adjustment during lockdown mediated the relationship between confinement levels and most sexual functioning domains in men but not in women. Also, while confinement levels were not directly related with most sexual functioning domains, psychological adjustment during lockdown did predict lower sexual functioning in both genders. CLINICAL TRANSLATION: Findings support that human sexual functioning should be framed within a contextual perspective, emphasizing how psychological adjustment and situational life stressors, such as lockdown situations, shape individuals' sexuality. Such perspective should be considered in treatment protocols implemented during current pandemic. STRENGTHS & LIMITATIONS: Data add to the literature on the effects of lockdown in the sexuality domain. However, the study precludes inference of causality and targets only a little proportion of all the dynamics involved in sexuality during the current historical moment. CONCLUSION: Psychological adjustment during COVID-19 seems to have a role on human sexual functioning, over the single effects of confinement. Carvalho J, Campos P, Carrito M, et al. The Relationship Between COVID-19 Confinement, Psychological Adjustment, and Sexual Functioning, in a Sample of Portuguese Men and Women. J Sex Med 2021;18:1191-1197.

When we don't know what we know - Sex and skin color.

In 3 experiments, we examine how the abstract category of gender, grounded by the lightness-darkness dimension, derived from the universal sexual dimorphism of skin color, is represented and how such representations lead to visual accentuation processes, i.e. polarization of differences between male and female faces. In the first two experiments, we show that irrespective of whether grayscale male and female faces are presented sequentially or jointly, female faces are judged to be lighter than male faces when participants are asked to indicate the level of lightness of the faces. This pattern was found for the majority of participants who explicitly stated that men and women do not differ in skin color. The third experiment was designed to examine the cognitive consequences of what people implicitly 'know' with a perceptual accentuation study. Participants were provided with male and female faces of equal skin color. Subsequently, in a memory recall task, they were asked to select, from a row of several faces varying in skin color, the original face. They chose, as predicted, lighter versions of faces for females compared to the male faces. This research reveals that the evolutionarily based sexual dimorphism in skin color implicitly grounds gender categories and shapes implicit visual accentuation processes.

Do Masculine Men Smell Better? An Association Between Skin Color Masculinity and Female Preferences for Body Odor.

A recent study claimed face skin color as a sexually dimorphic variable that influences attractiveness preferences in mate choice. Thereby, skin color may assume the role of a mate quality signal influencing attractiveness preferences. As body odor is linked to attractiveness, this study aimed to explore whether the odors of men with more masculine facial skin color would be evaluated more positively than odors from less masculine men. Female raters were presented with body odors of 18 men and were asked to rate them in various characteristics. Multilevel modeling revealed that the odors of the donors with more masculine color were rated not only as more attractive, more pleasant, and sexier, but also healthier. This indicates that odor associated with men with more masculine skin color is attractive, just as other sexually dimorphic traits. Furthermore, we found a negative relation between skin color masculinity and perceived odor maleness. Regarding this last finding, a new discussion is introduced with respect to the influence of cognitive stereotypes in odor judgments. Altogether, the study supports the possibility that chemosensory signals may be communicating signs of mate quality associated with masculinity.