Role of Partner Novelty in Sexual Functioning: A Review

Been There, Done That: The Impact of the Novelty of Penile Vaginal Intercourse (PVI) and Participants' Sex on Delay and Probability Discounting of PVI

Delay and probability discounting tasks are useful for understanding aspects of decision making. The current study, which employed a mixed-model design to assess discounting of penile-vaginal intercourse (PVI), was conducted online with male and female participants recruited from Prolific (N = 300; mean age = 34.1 years). Results of the novel delay and probability discounting tasks indicated that as the delay to PVI increased, or as PVI became less certain to occur, participants were instead more likely to choose to receive oral sex, the reward initially indicated as less desirable. Having previously engaged in PVI, however, enhanced this reversal of preferences on both tasks, which suggests PVI loses some of its value when no longer novel. Males and females similarly discounted PVI on the delay discounting task, which suggests biological sex may not impact the propensity to wait for a preferred sexual behavior. On the probability discounting task, however, males were more averse to a reduced probability of PVI occurring and instead opted for receiving oral sex. The sexual behavior discounting tasks developed in the current study, and ones like it, may prove useful for identifying preferences in sexual behaviors, and ultimately enhance sexual and relationship satisfaction.

Sexual boredom and sexual desire in long-term relationships: a latent profile analysis

BACKGROUND

Research suggests a general link between sexual boredom and sexual desire, but its understanding is currently very limited.

AIM

To identify distinct (latent) groups of women and men in long-term relationships based on their reported levels of sexual boredom and sexual desire.

METHODS

Latent profile analysis (LPA) was conducted in an online sample of 1223 Portuguese participants aged 18 and 66 years (mean ± SD, 32.75 ± 6.11), using indicators of sexual boredom and partner-related, attractive other-related, and solitary sexual desire to categorize participants. Multinomial logistic regression analysis was carried out to explore predictors and correlates of the latent profiles.

OUTCOMES

Sexual boredom was assessed by the Sexual Boredom Scale, while sexual desire was measured with the Sexual Desire Inventory.

RESULTS

As compared with women, men reported higher levels of sexual boredom and sexual desire. LPA indicated 3 profiles in women and 2 profiles in men. Among women, P1 was characterized by above-average sexual boredom, below-average partner- and attractive other-related sexual desire, and very low solitary sexual desire; P2 by below-average sexual boredom, attractive other-related sexual desire, and solitary sexual desire and above-average partner-related sexual desire; and P3 by above-average sexual boredom, attractive other-related sexual desire, and solitary sexual desire and below-average partner-related sexual desire. In men, P1 was characterized by high sexual boredom, above-average partner-related sexual desire, and high attractive other-related and solitary sexual desire and P2 by below-average sexual boredom and above-average partner-related, attractive other-related, and solitary sexual desire. The latent profiles did not differ according to relationship duration. Overall, the sole consistent correlate of the latent categorization was sexual satisfaction.

CLINICAL IMPLICATIONS

In women, above-average levels of sexual boredom were linked to below-average levels of partner-related desire, which suggests likely benefits of helping the couple to minimize or cope better with their sexual routines. In men, participants in the 2 profiles did not differ in partner-related sexual desire, suggesting that clinical interventions dealing with male sexual boredom should investigate factors beyond the current relationship.

STRENGTHS AND LIMITATIONS

This study explored different facets of sexual desire and used LPA, rendering advantages over previous research. The male sample has lower statistical power than the female sample.

CONCLUSION

Patterns of sexual boredom and sexual desire among individuals in long-term monogamous relationships are distinct and consistently related to sexual satisfaction in women and men and to relationship satisfaction among only women, which have important clinical ramifications.

Associations among Sexual Activity, Relationship Types, and Health in Mid and Later Life

Despite a growing amount of research on sexuality in mid and later life, relatively little is known about the associations among sexual activity, relationship types, and health. This paper analyzes data from the Survey of Health, Ageing and Retirement in Europe (SHARE) for the subpopulation of respondents residing in the Czech Republic (N = 1304, 49% women; M_age = 69.1, SD_age = 8.0). Hierarchical ordinal regression models showed that persons who stayed in newly formed or less traditional relationship types, such as dating, Living-Apart-Together (LAT) relationships, and cohabitation, reported a higher frequency of sexual activity than married people. Overall, the dating and LAT relationship group displayed the highest sexual frequency and the lowest incidence of chronic diseases. People in marriages and cohabitation were comparable with respect to the number of chronic diseases. The findings suggest that sexual activity is intertwined with later-life relationships and sexual frequency may vary according to the relationship type. Future research may benefit from probing the extent to which partnered sex is important for maintaining bonds between older partners with separate households.

A prospective controlled study of sexual function and sexually related personal distress up to 12 months after premenopausal risk-reducing bilateral salpingo-oophorectomy

OBJECTIVE

Premenopausal risk-reducing bilateral salpingo-oophorectomy (RRBSO) may impair sexual function, but the nature and degree of impairment and impact of estrogen therapy on sexual function and sexually related personal distress after RRBSO are uncertain.

METHODS

Prospective observational study of 73 premenopausal women at elevated risk of ovarian cancer planning RRBSO and 68 premenopausal controls at population risk of ovarian cancer. Participants completed the Female Sexual Function Index and the Female Sexual Distress Scale-Revised. Change from baseline in sexual function following RRBSO was compared with controls at 12 months according to estrogen therapy use.

RESULTS

Baseline sexual function domains did not differ between controls and those who underwent RRBSO and subsequently initiated (56.2%) or did not initiate (43.8%) estrogen therapy. At 12 months, sexual desire and satisfaction were unchanged in the RRBSO group compared with controls. After RRBSO, nonestrogen therapy users demonstrated significant impairment in sexual arousal (β-coefficient (95% confidence interval) -2.53 (-4.86 to -0.19), P < 0.03), lubrication (-3.40 (-5.84 to -0.96), P < 0.006), orgasm (-1.64 (-3.23 to -0.06), P < 0.04), and pain (-2.70 (-4.59 to 0.82), P < 0.005) compared with controls. Although sexually related personal distress may have been more likely after RRBSO, irrespective of estrogen therapy use, there was insufficient data to formally test this effect.

CONCLUSIONS

The findings suggest premenopausal RRBSO adversely affects several aspects of sexual function which may be mitigated by the use of estrogen therapy. Further research is needed to understand the effects of RRBSO on sexual function and sexually related personal distress, and the potential for estrogen therapy to mitigate against any adverse effects.

Experimental Evidence for Sex Differences in Sexual Variety Preferences: Support for the Coolidge Effect in Humans

We examined sex differences in preferences for sexual variety and novelty to determine whether the Coolidge effect plays a role in human sexuality. In two experimental studies that employed different manipulations, we found converging evidence that men showed a greater preference for variety in potential short-term mates than did women. In the first study, men (n = 281) were more likely than women (n = 353) to select a variety of mates when given the opportunity to distribute chances to have sex with different individuals in hypothetical situations. This sex difference was evident regardless of the targets' attractiveness and age. Further, men found it more appealing if their committed romantic/sexual partners frequently changed their physical appearance, while women reported that they modified their physical appearance more frequently than did men, potentially appealing to male desires for novelty. In the second study, when participants were given a hypothetical dating task using photographs of potential short-term mates, men (n = 40) were more likely than women (n = 56) to select a novel person to date. Collectively, these findings lend support to the idea that sex differences in preferences for sexual variety and novelty are a salient sex-specific evolved component of the repertoire of human mating strategies.

Foundations of Erobotics

Technology is giving rise to artificial erotic agents, which we call erobots (erôs + bot). Erobots, such as virtual or augmented partners, erotic chatbots, and sex robots, increasingly expose humans to the possibility of intimacy and sexuality with artificial agents. Their advent has sparked academic and public debates: some denounce their risks (e.g., promotion of harmful sociosexual norms), while others defend their potential benefits (e.g., health, education, and research applications). Yet, the scientific study of human-machine erotic interaction is limited; no comprehensive theoretical models have been proposed and the empirical literature remains scarce. The current research programs investigating erotic technologies tend to focus on the risks and benefits of erobots, rather than providing solutions to resolve the former and enhance the latter. Moreover, we feel that these programs underestimate how humans and machines unpredictably interact and co-evolve, as well as the influence of sociocultural processes on technological development and meaning attribution. To comprehensively explore human-machine erotic interaction and co-evolution, we argue that we need a new unified transdisciplinary field of research-grounded in sexuality and technology positive frameworks-focusing on human-erobot interaction and co-evolution as well as guiding the development of beneficial erotic machines. We call this field Erobotics. As a first contribution to this new discipline, this article defines Erobotics and its related concepts; proposes a model of human-erobot interaction and co-evolution; and suggests a path to design beneficial erotic machines that could mitigate risks and enhance human well-being.

What Makes a Partner Ideal, and for Whom? Compatibility Tests, Filter Tests, and the Mating Stability Matrix

We introduce a typological characterization of possible human heterosexual couples in terms of the concordance-opposition of the orientations of their active and receptive areas as defined by the tie-up theory. We show that human mating incentives, as characterized by widely adopted approaches, such as Becker’s marriage market approach, only capture very specific instances of actual couples thus characterized. Our approach allows us to instead explore how super-cooperation among partners vs. convenience vs. constriction may be regarded as alternatives modes of couple formation and cohesion, leading to very different types of couples with different implications in terms of stability and resilience. Our results may have interesting implications for future experimental research and for individual and family counseling.

An Organizational Framework for Sexual Media's Influence on Short-Term Versus Long-Term Sexual Quality

Although research has suggested a net negative influence of sexual media on sexual quality, enough researchers have found results suggesting that sexual media has no effect or a positive influence that the matter warrants further investigation. We present an organizational framework utilizing primarily the acquisition, activation, application model (3AM), and the Antecedents-Context-Effects model (ACE) to reconcile these apparently contradictory claims. By synthesizing these theories, we suggest that to truly understand the impact of sexual media on sexual quality, four factors must be taken into account: (1) the content of the sexual media being viewed, (2) the difference between short-term and long-term sexual quality, (3) the influence of exclusivity, formativeness, resonance, and reinforcement in moderating the extent to which the portrayed sexual script is applied (influences attitudes and behavior), and (4) the couple context for congruency of use, script application, and moral paradigms. While acknowledging the many nuances that should be considered, we ultimately argue that when considering these factors simultaneously, the overall scripts presented in sexual media are congruent with pursuing factors for short-term sexual quality and incongruent with pursuing factors for long-term sexual quality.

Temporal Stability of Sexual Excitation and Sexual Inhibition in Women

The dual control model of sexual response proposes two factors, sexual excitation (SE) and sexual inhibition (SI), that aim to predict sexual behavior and response. While SE and SI are described as stable traits that influence sexuality-related outcomes such as sexual function or sexual risk taking, only a few studies have presented data on the stability of these factors. The aim of this study was to evaluate the temporal stability of SE and SI, and to investigate whether changes in sexual function or partnership status influence SE and SI in a longitudinal sample of women. To address these research questions, the Sexual Excitation/Sexual Inhibition Inventory for Women (SESII-W) was administered five times over the course of 4 years. The SESII-W includes two main scales of SE and SI which consist of five (Arousability, Partner characteristics, Sexual power dynamics, Smell, and Setting) and three subscales (Concerns about sexual function, Arousal contingency, Relationship importance), respectively. Data from 553 women (M_age = 31.38 years, SD = 10.25, range = 18-67) who participated in at least two assessment points were included in this study. Bivariate correlations between baseline and the fifth follow-up assessment indicated a high temporal stability of SE and SI in women (.47 < r < .71). A series of generalized linear models were conducted to investigate the impact of time, changes in sexual function, partnership status, and changes in partnership status on SE and SI. Partner characteristics (SE) that showed small increases over time. Across different subscales, improvements in sexual function were associated with higher SE and lower SI. Changes in partnership status and partnership status itself were predictors of one SE- and three SI-related scales. This study suggests a relatively high temporal stability of SE and SI in women and supports the dual control model's assertion that both factors are stable individual traits. Certain life events such as a new partnership or sexual difficulties may, however, impact time stability of both factors.

Hormones and the Coolidge effect

The Coolidge effect is the renewal of sexual behavior after the presentation of a novel sexual partner and possibly occurs as the result of habituation and dishabituation processes. This re-motivation to copulate is well studied in males and is commonly related to sexual satiety, which involves several neurobiological changes in steroid receptors and their mRNA expression in the CNS. On the other hand, there are few reports studying sexual novelty in females and have been limited to behavioral aspects. Here we report that the levels of rat proceptive behavior, a sign of sexual motivation, declines after 4 h of continuous mating, particularly in females that were unable to regulate the time of mating. Such reduction was not accompanied by changes in lordosis, suggesting that they were not due to the vanishing of the endocrine optimal milieu necessary for the expression of both components of sexual behavior in the female rat. These and previous data support important differences between sexual behavior in both sexes that would result in natural divergences in the Coolidge effect expression. We here also review some reports in humans showing peculiarities between the pattern of habituation and dishabituation in women and men. This is a growing research field that needs emphasis in female subjects.

Testosterone in Women: Measurement and Therapeutic Use

Androgens, both in excessive and depleted states, have been implicated in female reproductive health disorders. As such, serum testosterone measurements are frequently ordered by physicians in cases of sexual dysfunction and in women presenting with hirsutism. Commercially available androgen assays have significant limitations in the female population. Furthermore, the measurements themselves are not always informative in patient diagnosis, treatment, or prognosis. This article reviews the limitations of serum androgen measurements in women suspected to have elevated or reduced androgen action. Finally, we consider when therapeutic use of androgen replacement may be appropriate for women with sexual interest/arousal disorders.