Lonely hearts advertisements (LHA) published in Japan were examined in a comparative study on sexually dimorphic mate preference. I analyzed 944 LHA written by Japanese (730 by males and 214 by females) seeking short-term relationships and 780 LHA (577 by males and 203 by females) seeking long-term relationships. Some universal patterns of mate preference were confirmed and others were not. Female advertisers in both categories sought more traits than they offered; they also sought more traits than male advertisers. Males tended (...) to offer their financial and social status, and females tended to seek those traits. More females requested family commitment than males. While there was no sex difference in offering and seeking physical appearance and health, females tended to request photographs of their potential mates. Males were more likely than females to be willing to accept children from previous relationships, although there was no significant difference in refusing such children. More females seeking long-term mates requested family commitment than females seeking short-term mates. In both males and females, more advertisers seeking long-term mates offered family commitment than advertisers seeking short-term mates. Some predictions for contingent preference were also examined. One prediction confirmed was that females offering physical appearance and health sought more traits than those not doing so. However, males offering financial and social status did not make higher demands than those who did not, which does not support one prediction. (shrink)

New knowledge about the sexual differentiation of the brain profoundly changes our understanding of basic topics in brain development such as the false dichotomy between long-lasting and transient effects of hormones on neural activity, the importance of ovarian hormones in brain development, the plasticity of neural structures throughout the life span, and the way measurement issues affect research conclusions.

A growing amount of research has shown associations between sexually dimorphic vocal traits and physiological conditions related to reproductive advantage. This paper presented a review of the literature on the relationship between sexually dimorphic vocal traits and sex hormones, body size, and physique. Those physiological conditions are important in reproductive success and mate selection. Regarding sex hormones, there are associations between sex-specific hormones and sexually dimorphic vocal traits; about body size, formant frequencies are more reliable predictors of human body size (...) than pitch/fundamental frequency; with regard to the physique, there is a possible but still controversial association between human voice and strength and combat power, while pitch is more often used as a signal of aggressive intent in conflict. Future research should consider demographic, cross-cultural, cognitive interaction, and emotional motivation influences, in order to more accurately assess the relationship between voice and physiology. Moreover, neurological studies were recommended to gain a deeper understanding of the evolutionary origins and adaptive functions of voice modulation. (shrink)

A large number of previous reports described an effect of the pituitary hormone prolactin (PRL) on steroid hormone production by the adrenal cortex. However, those studies remained anecdotal and were never converted into a conceptual and mechanistic framework, let alone being translated into clinical care. In the light of our recently published landmark study where we described PRL signalling as a pivotal regulator of the sexually dimorphic adrenal phenotype in mouse and of adrenal androgen production in humans, we present here (...) the overarching hypothesis that PRL signalling increases the activity of Steroidogenic Factor‐1 (SF‐1/NR5A1), a transcription factor that has an essential role in adrenal gland development and function, to regulate adrenal cortex growth and hormonal production in physiological and pathological conditions. PRL can then be considered as a bona fide adrenocorticotropic hormone synergizing with ACTH in the endocrine control of adrenal cortex function. (shrink)

Men's interest in sex partners' status traits and commitment (investment thoughts) declines with number of sex partners and permissiveness of attitudes; women's investment thoughts do not seem to decline. Testosterone, dominance, sexual attractiveness, and number of sex partners are correlated in men but not in women. It is plausible that these sex differences are part of sexually dimorphic feedback systems. This type of feedback is consistent with both reciprocal and basal models of testosterone.

A number of theories about the origins of musicality have incorporated biological and social perspectives. Darwin argued that musicality evolved by sexual selection, functioning as a courtship display in reproductive partner choice. Darwin did not regard musicality as a sexually dimorphic trait, paralleling evidence that both sexes produce and enjoy music. A novel research strand examines the effect of musicality on sexual attraction by acknowledging the importance of facial attractiveness. We previously demonstrated that music varying in emotional content (...) increases the perceived attractiveness and dating desirability of opposite-sex faces only in females, compared to a silent control condition. Here, we built upon this approach by presenting the person depicted (target) as the performer of the music (prime), thus establishing a direct link. We hypothesized that musical priming would increase sexual attraction, with high-arousing music inducing the largest effect. Musical primes (25 s, piano solo music) varied in arousal and pleasantness, and targets were photos of other-sex faces of average attractiveness and with neutral expressions (2 s). Participants were 35 females and 23 males (heterosexual psychology students, single, and no hormonal contraception use) matched for musical background, mood, and liking for the music used in the experiment. After musical priming, females’ ratings of attractiveness and dating desirability increased significantly. In males, only dating desirability was significantly increased by musical priming. No specific effects of music-induced pleasantness and arousal were observed. Our results, together with other recent empirical evidence, corroborate the sexual selection hypothesis for the evolution of human musicality. (shrink)

Expression of sexually dimorphic behaviors critical for reproduction depends on the organizational actions of steroid hormones on the developing brain. We offer the new hypothesis that transcriptional activities in brain regions executing these sexually dimorphic behaviors are modulated by estrogen‐induced modifications of histone proteins. Specifically, in preoptic nerve cells responsible for facilitating male sexual behavior in rodents, gene expression is fostered by increased histone acetylation and reduced methylation (Me), and, that the opposite set of histone modifications will be found (...) in females. Conversely, in ventromedial hypothalamic neurons that are responsible for coordinating female sexual behavior, transcriptional activities in genetic females are fostered by increased histone acetylation and reduced Me, and, further, that the opposite set of histone modifications will be found in males. Thus, these epigenetic events will guarantee that effects of sex hormone exposure during the neonatal critical period will be translated into lasting sex differences in adult reproductive behaviors. (shrink)

Historically, studies of the role of endogenous hormones in developmental differentiation of the sexes have suggested that mammalian sexual differentiation is mediated primarily by testicular androgens, and that exposure to androgens in early life leads to a male brain as defined by neuroanatomy and behavior. The female brain has been assumed to develop via a hormonal default mechanism, in the absence of androgen or other hormones. Ovarian hormones have significant effects on the development of a sexually dimorphic cortical structure, (...) the corpus callosum, which is larger in male than in female rats. In the females, removal of the ovaries as late as Day 16 increases the cross-sectional area of the adult corpus callosum. Treatment with low-dose estradiol starting on Day 25 inhibits this effect. Female callosa are also enlarged by a combination of daily postnatal handling and exogenous testosterone administered prior to Day 8. The effects of androgen treatment are expressed early in development, with males and testosterone-treated females having larger callosa than control females as early as Day 30. The effects of ovariectomy do not appear until after Day 55. These findings are more consistent with other evidence of a later sensitive period for ovarian feminization as compared to androgenic masculinization. (shrink)

This article illuminates a tension internal to Elizabeth Grosz's provocative theory of the irreducibility of sexual difference: while it establishes sexual difference as an ontological force of differentiation, it simultaneously delimits the forms sexual difference can take as fixed and uncrossable. This model thus privileges cissexual difference while invalidating trans modes of embodiment and identification, a move that perpetuates antitrans logic and practices while impoverishing feminist conceptions of the generativity of sexual difference. This article examines the (...) uses of transsexuality throughout Grosz's work on sexual difference, evaluating her claim that sexual difference is irreducible alongside her insistence that transsexuality is an impossible attempt to assume a bodily sex other than that assigned at birth. Illustrating how Grosz's account narrows the generativity of sexual difference down to unchangeable dimorphic sex, this article argues that fixed dimorphic sex is not simply irreducibly given but is the effect of normative schemas. If the power of sexual difference lies in its capacity to generate difference, it need not be constrained to an immobile binary of sexually specific bodies whose morphological possibilities are fixed. This article thus argues for the capacity of sexual difference itself to become otherwise than solely cisgender. (shrink)

The COVID-19 pandemic has caused a global societal, economic, and social upheaval unseen in living memory. There have been substantial cross-national differences in the kinds of policies implemented by political decision-makers to prevent the spread of the virus, to test the population, and to manage infected patients. Among other factors, these policies vary with politicians’ sex: early findings indicate that, on average, female leaders seem more focused on minimizing direct human suffering caused by the SARS-CoV-2 virus, while male leaders implement (...) riskier short-term decisions, possibly aiming to minimize economic disruptions. These sex differences are consistent with broader findings in psychology, reflecting women’s stronger empathy, higher pathogen disgust, health concern, care-taking orientation, and dislike for the suffering of other people—as well as men’s higher risk-taking, Machiavellianism, psychopathy, narcissism, and focus on financial indicators of success and status. This review article contextualizes sex differences in pandemic leadership in an evolutionary framework. Evolution by natural selection is the only known process in nature that organizes organisms into higher degrees of functional order, or counteracts the unavoidable disorder that would otherwise ensue, and is therefore essential for explaining the origins of human sex differences. Differential sexual selection and parental investment between males and females, together with the sexual differentiation of the mammalian brain, drive sex differences in cognition and behavioral dispositions, underlying men’s and women’s leadership styles and decision-making during a global pandemic. According to thesexually dimorphic leadership specialization hypothesis, general psychobehavioral sex differences have been exapted during human evolution to create sexually dimorphic leadership styles. They may be facultatively co-opted by societies and/or followers when facing different kinds of ecological and/or sociopolitical threats, such as disease outbreaks or intergroup aggression. Early evidence indicates that against the invisible viral foe that can bring nations to their knees, the strategic circumspection of empathic feminine health “worriers” may bring more effective and humanitarian outcomes than the devil-may-care incaution of masculine risk-taking “warriors”. (shrink)

Sex‐specific transcriptional and epigenomic profiles are detectable in the embryo very soon after fertilization. I propose that in male (XY) and female (XX) pre‐implantation embryos sex chromosomes establish sexually dimorphic interactions with the autosomes, before overt differences become apparent and long before gonadogenesis. Lineage determination restricts expression biases between the sexes, but the epigenetic differences are less constrained and can be perpetuated, accounting for dimorphisms that arise later in life. In this way, sexual identity is registered in the (...) epigenome very early in development. As development progresses, sex‐specific regulatory modules are harbored within shared transcriptional networks that delineate common traits. In reviewing this field, I propose that analyzing the mechanisms for sexual dimorphisms at the molecular and biochemical level and incorporating developmental and environmental factors will lead to a greater understanding of sex differences in health and disease. (shrink)

Sexually dimorphic mate selection strategies were examined in 200 university students reporting their willingness to engage in casual sexual encounters with hypothetical individuals of the opposite sex. Using a questionnaire format, the possibility of forming a long-term relationship was manipulated, while risk of disease, pregnancy, and detection was eliminated across all conditions. In addition, potential partners varied in level of attractiveness, and in personality and behavioral characteristics. As expected, men reported a greater anticipated willingness to engage in sexual (...) intercourse across all conditions compared with women. The possibility of forming a long-term relationship elevated women’s, but not men’s, willingness for sexual intercourse. While a potential partner’s attractiveness had a significant positive overall effect on responses, reducing their relative attractiveness had a greater negative impact on men’s responses. Reference to the parental qualities of a potential partner significantly increased women’s, but not men’s, anticipated willingness for sexual intercourse. Describing a hypothetical partner as non-aggressive marginally increased women’s willingness and did not affect men’s responses. The wording of items relevant to this condition may have resulted in the potential partner sounding "wimpy" rather than nonaggressive, and this may have reduced the expected effect of this manipulation. The possibility that women may trade off personality and behavioral characteristics with attractiveness to a greater degree than men when assessing potential mates is considered. (shrink)

Despite a “spatial imaginary” which constructs Europe as a location of sexual and gender freedom (Rao, 2014), presently, twenty countries in Europe require sterilisation in order to legally recognise transgender people’s gender identities, including four of the seven countries in the INFERCIT study: Greece, Italy, Turkey, and Cyprus (but not Spain, which since 2007 does not require sterilisation for gender identity recognition [see Platero, 2008]. In Bulgaria and Lebanon no gender identity recognition for trans people is provided by law; (...) the latter lies outside the “European” region) (TGEU, 2014). Compulsory sterilisation—classified as a crime against humanity in the Rome Statute of the International Criminal Court (UN General Assembly, 1998: art. 7.1)—is widely in force against transgender people, who constitute “the only known group in Europe subject to legally prescribed, state-enforced sterilisation” (Hammarberg, 2009: 19). However, forced sterilisation of trans people is not generally conceptualised as a eugenicist or genocidal policy, in part because sterilisation is conflated with gender reassignment surgical interventions which, widely considered as that which brings transgender bodies into being, are in turn conflated with embodied transgender subjectivities. On this view, transgender individuals could not exist except through a medicalised process that, by design, precludes their “natural” reproductive capacities and is generally not accompanied by fertility preservation or the provision of assisted reproduction technologies (Plemons, 2014: 38; De Sutter et al., 2002; De Sutter, 2001). Sterilisation laws are justified through a pathologising discourse on transgender lives which constructs gender reassignment interventions as medical “treatment” of gender identity disorder (Suess, Espineira & Crego Walters, 2014: 73-76). Adopting a depathologising perspective enables us to contextualise compulsory sterilisation (which naturalises the sexually dimorphic, cisgender, heterosexual body) as a form of “gendercide” which has historically been instrumental in the imposition of a Euro-colonial binary gender system (Miranda, 2010; Lugones, 2007). The state-imposition of medical interventions on trans people not only has deleterious effects on their reproductive rights, “effectively undermin[ing] their right to found a family” (Hammarberg, 2009: 21; see OHCHR et al., 2014)—as “family” is hegemonically defined by a heteronormative and bio/ logical kinship order (Butler, 2002; van Anders, 2014). I argue that state regulation of transgender reproduction constitutes a form of institutionalised gendered violence inasmuch as it impedes transgender people’s ability to exercise inherent first-person authority over the materiality and meanings of their gendered embodiments (Bettcher, 2009; Spade, 2013). Efforts to renaturalise gender and kinship inextricably intersect (Kantsa, 2006) in the biopolitical attempt to regulate transgender embodiments and reproduction, which conditions the emerging legal recognition of transgender subjects as a rights-bearing minority (Stryker, 2014). (shrink)

Background: Olfactory cues directly link the environment to gene expression. Two types of olfactory cues, food odors and social odors, alter genetically predisposed hormone-mediated activity in the mammalian brain. Methods: The honeybee is a model organism for understanding the epigenetic link from food odors and social odors to neural networks of the mammalian brain, which ultimately determine human behavior. Results: Pertinent aspects that extend the honeybee model to human behavior include bottom-up followed by top-down gene, cell, tissue, organ, organ-system, and (...) organism reciprocity; neurophysiological effects of food odors and of sexually dimorphic, species-specific social odors; a model of motor function required for social selection that precedes sexual selection; and hormonal effects that link current neuroscience to social science affects on the development of animal behavior. Conclusion: As the psychological influence of food odors and social orders is examined in detail, the socioaffective nature of olfactory cues on the biologically based development of sexual preferences across all species that sexually reproduce becomes clearer Keywords: behavior; development; evolution; odors; food; social; sexual; epigenetic; olfaction; pheromones; hormones; environment; animal; affect; effect; neuroscience (Published: 15 March 2012) Citation: Socioaffective Neuroscience & Psychology 2012, 2 : 17338 - DOI: 10.3402/snp.v2i0.17338. (shrink)

Background: The prevalence of anxiety and depression in young students is associated with biosocial factors and scholastic stress. However, few studies have evaluated emotional-affective symptoms that are related to the immune system and antioxidant parameters in young individuals without diagnoses of affective disorders.Aim: This study aims to assess the relationship between emotional-affective symptoms and glutathione concentrations and CD4 and CD8 lymphocyte counts in college students.Methods: College students completed standardized psychometric instruments, including the Perceived Stress Scale, Hamilton Anxiety Scale, Beck Depression (...) Inventory, Familiar Social and Friends Support Scale, and Rosenberg Scale. Blood samples were biochemically analyzed. Analyses of variance were conducted between four groups according to symptom severity.Results: A considerable prevalence of stress, anxiety, and depression symptoms was observed and negatively correlated with self-esteem and socio-familiar support. Perceived stress was sexually dimorphic. Although biochemical parameters were within reference ranges, glutathione, CD4, and CD8 tended to be lower in participants with anxiety and depression symptoms, which may be of predictive value.Conclusion: The relationship between antioxidant/immune parameters and socio-affective scores is latent in undiagnosed college students who might develop affective disorders. The findings suggest that during the initial development of affective disorders, stress management strategies should be implemented to help college students cope with the academic load and monitor negative changes in their physiological state. (shrink)

Postgenderism is an extrapolation of ways that technology is eroding the biological, psychological and social role of gender, and an argument for why the erosion of binary gender will be liberatory. Postgenderists argue that gender is an arbitrary and unnecessary limitation on human potential, and foresee the elimination of involuntary biological and psychological gendering in the human species through the application of neurotechnology, biotechnology and reproductive technologies. Postgenderists contend that dyadic gender roles and sexual dimorphisms are generally to (...) the detriment of individuals and society. Assisted reproduction will make it possible for individuals of any sex to reproduce in any combinations they choose, with or without "mothers" and "fathers," and artificial wombs will make biological wombs unnecessary for reproduction. Greater biological fluidity and psychological androgyny will allow future persons to explore both masculine and feminine aspects of personality. Postgenderists do not call for the end of all gender traits, or universal androgyny, but rather that those traits become a matter of choice. Bodies and personalities in our postgender future will no longer be constrained and circumscribed by gendered traits, but enriched by their use in the palette of diverse self-expression. (shrink)

Imprinted genes are monoallelically expressed in a parent‐of‐origin‐dependent manner and can affect brain and behavioural phenotypes. The X chromosome is enriched for genes affecting neurodevelopment and is donated asymmetrically to male and female progeny. Hence, X‐linked imprinted genes could potentially influence sexually dimorphic neurobiology. Consequently, investigations into such loci may provide new insights into the biological basis of behavioural differences between the sexes and into why men and women show different vulnerabilities to certain mental disorders. In this review, we summarise (...) recent advances in our knowledge of X‐linked imprinted genes and the brain substrates that they may act upon. In addition, we suggest strategies for identifying novel X‐linked imprinted genes and their downstream effects and discuss evolutionary theories regarding the origin and maintenance of X‐linked imprinting. BioEssays 28:35–44, 2006. © 2005 Wiley Periodicals, Inc. (shrink)

In Phillip Kerr’s 1994 spellbinding novel A Philosophical Investigation, the medical test to which the protagonist refers is a functional brain scan based on positron emission tomography. It is used to run large studies of male and female brains and, following a lead suggested by animal studies, has been used to identify rare cases of human male subjects who lack the ventral medial nucleus. This nucleus, in the experiment, is hypothesized to inhibit the activity of the sexually dimorphic nucleus, a (...) preoptic area of the male brain believed to be a repository of male aggressive response. Prior research, we learn from the plot, shows that 3 in 100,000 human males are VMN-negative. Thirty percent of those affected are believed to be in prison or to have a criminal record; 70% are believed to stabilize levels of aggression by producing increased levels of estrogen. Identities of subjects participating in the brain scan studies are protected through the conversion of real names to those of famous figures of the past — Bertrand Russell, Charles Dickens. Those for whom results are unfavorable are recontacted, and they are offered counseling. (shrink)

Drosophila males sing a courtship song to achieve copulations with females. Females were recently found to sing a distinct song during copulation, which depends on male seminal fluid transfer and delays female remating. Here, it is hypothesized that female copulation song is a signal directed at the copulating male and changes ejaculate allocation. This may alter female remating and sperm usage, and thereby affect postcopulatory mate choice. Mechanisms of how female copulation song is elicited, how males respond to copulation song, (...) and how remating is modulated, are considered. The potential adaptive value of female signaling during copulation is discussed with reference to vertebrate copulation calls and their proposed function in eliciting mate guarding. Female copulation song may be widespread within the Drosophila genus. This newly discovered behavior opens many interesting avenues for future research, including investigation of how sexually dimorphic neuronal circuits mediate communication between nervous system and reproductive organs. (shrink)

This article deploys and extends Ulrich Beck’s critique of ‘zombie categories’ :261–277, 2001) to consider how conjugal relationships are brought into being before the law. The argument presented here is that sexual performatives relating to marriage—and especially, in this instance, consummation—continue to produce a kind of social-legal magic, even as the social flesh of their enactment is rotting. Rules concerning annulment relating to wedding ceremonies, consent, disclosure, and consummation demonstrate that certain frameworks of conjugality involve a kind of corporeal (...) magic animating the privileged place of heterosexual marriage. Thus, rules and regulations pertaining to weddings continue to produce and protect heterogendered, sexually dimorphous bodies, even though this privileging is—or at least, is becoming—socially obsolete. (shrink)

Sex chromosomes are advantageous to mammals, allowing them to adopt a genetic rather than environmental sex determination system. However, sex chromosome evolution also carries a burden, because it results in an imbalance in gene dosage between females (XX) and males (XY). This imbalance is resolved by X dosage compensation, which comprises both X chromosome inactivation and X chromosome upregulation. X dosage compensation has been well characterized in the soma, but not in the germ line. Germ cells face a special challenge, (...) because genome wide reprogramming erases epigenetic marks responsible for maintaining the X dosage compensated state. Here we explain how evolution has influenced the gene content and germ line specialization of the mammalian sex chromosomes. We discuss new research uncovering unusual X dosage compensation states in germ cells, which we postulate influence sexual dimorphisms in germ line development and cause infertility in individuals with sex chromosome aneuploidy. (shrink)

Disability activists influenced by queer theory and advocates of “human enhancement” have each disputed the idea that what is “normal” is normatively significant, which currently plays a key role in the regulation of pre-implantation genetic diagnosis (PGD). Previously, I have argued that the only way to avoid the implication that parents have strong reasons to select children of one sex (most plausibly, female) over the other is to affirm the moral significance of sexually dimorphic human biological norms. After outlining the (...) logic that generates this conclusion, I investigate the extent to which it might also facilitate an alternative, progressive, opening up of the notion of the normal and of the criteria against which we should evaluate the relative merits of different forms of embodiment. This paper therefore investigates the implications of ideas derived from queer theory for the future of PGD and of PGD for the future of queerness. (shrink)

This paper criticises John Harris's attempts to defend an account of a ‘harmed condition’ that can stand independently of intuitions about what is ‘normal’. I argue that because Homo sapiens is a sexually dimorphic species, determining whether a particular individual is in a harmed condition or not will sometimes require making reference to the normal capacities of their sex. Consequently, Harris's account is unable to play the role he intends for it in debates about the ethics of human enhancement.

Previous research has suggested that offspring sex ratio may be influenced by the actions of prenatal sex steroids, principally androgens. The relative length of the second (index finger) to the fourth digit (ring finger) has been reported to be a proxy to prenatal testosterone levels. This trait is sexually dimorphic, such that males display a significantly lower 2D:4D ratio (indicating higher testosterone exposure), and this dimorphism appears robust across different populations. We suggest that digit ratio (2D:4D) may form a useful (...) marker to help explain variation in sex ratio and sociosexuality. (shrink)

The Sociosexual Orientation Inventory (SOI) was not designed to illuminate the sexually dimorphic mental mechanisms posited by evolutionary theories. Its results are therefore open to competing interpretations. Measures designed to tap the thought processes surrounding sexual experience generate findings that are more compatible with evolutionary than with social structural theory.

The target article takes myriad human female patterns and aligns them as a unit emerging from an expanded version of “staying alive” theory. Females and males do differ, however, to treat the complexity of human response to threats as an explicit, evolved sexually dimorphic package is not reflective of current knowledge regarding health, sex/gender, and behavior in Homo sapiens.

The imaginal discs of Drosophila melanogaster, which form the adult epidermal structures, are a good experimental model for studying morphogenesis. The genital disc forms the terminalia, which are the most sexually dimorphic structures of the fly. Both sexes of Drosophila have a single genital disc formed by three primordia. The female genital primordium is derived from 8th abdominal segment and is located anteriorly, the anal primordium (10 and 11th abdominal segments) is located posteriorly, and the male genital primordium from the (...) 9th abdominal segment lies between them. In both sexes, only two of these three primordia develop to form the adult terminalia. The anal primordium develops in both sexes but, depending on the genetic sex, will form either male or female analia. However, only one of the genital primordia develops in each sex, forming either the male or the female genitalia. This depends on the genetic sex of the fly. Therefore, the genital disc is a very good experimental model of how the sex‐determination and homeotic genes — which determine cell identity — interact to direct the development of a population of cells into male or female terminalia. It has been proposed that the sexually dimorphic development of the genital disc is the result of an integrated genetic input, made up by the sex‐determination gene doublesex and the homeotic gene Abdominal‐B. This input acts by modulating the response to Hedgehog, Wingless, and Decapentaplegic morphogenetic signals. BioEssays 23:698–707, 2001. © 2001 John Wiley & Sons, Inc. (shrink)

This article considers Beauvoir’s gesture towards fraternité at the end of The Second Sex (1949) by focusing on her fleeting characterisation of this future as ‘an androgynous world’. Generally, either Beauvoir’s call for fraternité is dismissed as an erasure of sexual difference and is thus seen to be politically bankrupt, or fraternité is understood to realise sexual difference. This latter reading suggests that androgyny plays no role in Beauvoir’s solution to women’s oppression, while the other view often sees (...) it as one effect of fraternité. This article takes a different position by arguing that Beauvoir affirms sexual difference and commits to an androgynous future. The article argues that androgyny is an affective mood that is constitutive of an openness in the field of possibility for living sexual difference. Consequently, androgyny plays not only a central role in fraternité, but also gestures to a future beyond dimorphic sexual difference. (shrink)

This chapter develops an alternative to the dominant articulation of human existence on the basis of classical phenomenology, arguing that Edmund Husserl's phenomenological inquiries into the structures of embodiment provide a very different and more fruitful starting point for the investigation of sexual difference than the ideas of social gender and biological sex. The ways of classifying sex and gender characteristics mark them out on several different conceptual bases, and thus their categories may not correspond or coincide. Moreover historical (...) and biological inquiries indicate that the dimorphic notion of sex is prescriptive and constructive. Finally the sex/gender paradigm is dominated by the explanatory framework of causes and effects. The phenomenological analysis shows that the causal-functional framework is inadequate for the investigation of the plurality of the bodily existence and sexual difference as a dimension of this existence. In the light of the explication of the concepts of sex and gender, and the phenomenological analysis of embodiment, the sex/gender paradigm cannot offer a basis for a comprehensive philosophy of sexual existence. (shrink)

In recent years, millions of citizens all over the world have used digital dating services. It remains unknown to what extent human sexuality will be changed by this. Based on an evolutionary psychological perspective, we assume that sexual selection shaped behavioural tendencies in men and women that are designed to increase the reproductive fitness. These tendencies are referred to as sexual strategies. Males and females sexual strategies differ according to sex-dimorphic reproductive investments. We assume that this inheritance (...) will affect human sexuality also in a digital future. To evaluate this assumption, we conducted a selective review of studies on digital dating services. Based on sexual selection theory, we derived a number of hypotheses regarding how men and women will use digital dating services typically and how the use of digital dating services might affect sexual wellbeing. Out of an initial data set of 2,568 records, we finally reviewed a set of 13 studies. These studies provided support for the notion that men and women act in the digital dating area according to sex-typical strategies. However, sometimes the circumstances of digital dating affect communication flow, e.g., in that men are even more active in establishing contacts than they are in real world conditions. Overall, women appear to accomplish their sexual goals in digital dating arenas more than men do given a surplus of male demand. Our results suggest that future human sexuality will be impacted by an interaction of both: sex-dimorphic ancient sexual strategies and new technologies. (shrink)

Background: By organizing and activating our passions with both hormones and experiences, the heart and mind of sexual behavior, sexual motivation, and sexual preference is the brain, the organ of learning. Despite decades of progress, this incontrovertible truth is somehow lost in the far-too-often biologically deterministic interpretation of genetic, hormonal, and anatomical scientific research into the biological origins of sexual motivation. Simplistic and polarized arguments are used in the media by both sides of the seemingly endless (...) debate over sexual orientation, equality, and human rights with such catch phrases as ‘‘born gay’’ contrasted against attempts of ‘‘reparative therapy’’ or ‘‘pray the gay away’’. Though long abandoned in practically every other area of psychology, this remnant of the nature-nurture controversy remains despite its generally acknowledged insufficiency in explaining any adult aspect of the human condition within the scientific community. Methods: This theoretical review article identifies three factors: 1) good intentions with regard to the argument from immutability; 2) false dichotomies limiting intellectual progress by oversimplification of theory and thus hypothesis, and most dangerously, interpretation and; 3) Tradition: a historical separation of the disciplines of biology and psychology, which, to this day, interferes with the effective translation of well-conducted science into good public understanding and policy. Results: Studies clearly demonstrate that progress toward sexual-orientation equality is being made, if slowly, despite the apparent irrelevance of the ‘‘born gay’’ argument from immutability. Evidence is further provided supporting the inadequacy of polarized, dichotic theories of sexual development, particularly those pitting ‘‘blank slate learning’’ against a fated, deterministic biological perspective. Results of this review suggest that an emerging interactionist perspective will promote both better scientific progress and better public understanding, hopefully contributing to progress toward nondiscriminatory public policy. Conclusion: Accepting that the brain is a highly plastic, modularly dimorphic, developmentally biased organ of learning, one which is organized and activated by both hormones and experiences across the lifespan, is essential for doing ‘‘good science’’ well. Interactionist theories of psychosexual development provide an empirically sound, strong, yet modifiable foundation for testable hypotheses exploring biologically biased sexual learning. Keywords: Brain; conditioning; controversy; dichotomy; differentiation; discrimination; equality; sex; sexual; orientation; learning; learned sexuality; born gay; hedonic evaluation; immutability; imprinting; incentive motivation; interactionism; predispositions; theory; therapy (Published: 15 March 2012) Citation: Socioaffective Neuroscience & Psychology 2012, 2 : 17334 - DOI: 10.3402/snp.v2i0.17334. (shrink)

Irish Travellers constitute a pre-demographic-shift population living among a post-demographic-shift one. Their socio-medico profile identifies them as largely on fast life-history trajectories. In addition, they are strongly religious, highly sexually behaviorally dimorphic, with strong traditions of male-male competition and quasi-symbolic bride capture. Their male-male competitions thus allow for the comparative testing of a number of interesting theories pertaining to the nature and function of types of violence in society. As a pilot study, we used expert raters to analyze a number (...) of real-life bare-knuckle competitions in terms of the support said spectacles offered to theories of this sort of violence as reinforcing ideas of antisociality, hierarchical promotion, intersexual signaling, or maintenance of within-group equality. We found good evidence to support theories of within-group, prosocial hierarchical functions for these contests. Limitations and implications for future research, such as direct measurement of fitness, are discussed. (shrink)

‘Gender ideology’ is a term used by many, but especially the Vatican, to chastise the view that sexual difference is more than just male and female, sexuality more than desire of the opposite. Each of the three books discussed in this article defends some version of this supposed ideology; each argues—though in different ways—for the need to move beyond a dimorphic account of sexual difference. Their arguments are taken up and deployed against what is here presented as the (...) ideology of sexual dimorphism, as it is seen in the body theology of John Paul II. It is argued that such a theology dehumanises intersexed people, along with homosexuals, and undermines Christian soteriology. The church needs to acknowledge as fully human all who don’t conform to heterosexual dimorphism; it needs to embrace a ‘third sex’ without reserve. (shrink)

The sex/gender distinction is a staple of feminist philosophy. In slogan form: sex is “natural,” while gender is the “social meaning” of sex. Considering the importance of the sex/gender distinction—which, here, I neither endorse nor reject—it’s interesting to ask if philosophers working on the metaphysics of sexuality might make use of an analogous distinction. In this paper, I argue that we ought to endorse the sexual orientation/identity distinction. In particular, I argue that the orientation/identity distinction is indispensable to normative (...) explanations regarding LGBTQIA+ oppression and resistance. As a case study, I consider the oppression involved in the gentrification of historic queer neighborhoods. (shrink)

Is there a choice in sexual orientation? [Wilkerson, William S. : “Is It a Choice? Sexual Orientation as Interpretation”. In: Journal of Social Philosophy 40. No. 1, p. 97–116] argues that sexual desires require interpretation in order to be fully constituted, and therefore sexual orientation is at least partially constituted by choice. [Díaz-León, Esa : “Sexual Orientation as Interpretation? Sexual Desires, Concepts, and Choice”; In: Journal of Social Ontology] critically assesses Wilkerson’s argument, concluding that (...) we still lack a good argument for the claim that choice plays a role in sexual orientation. Here I examine Díaz-León’s response to Wilkerson. I introduce what I call the conceptual act theory of sexual orientation, and argue that even if interpretation were not necessary to constitute sexual desires, it is a necessary element to constitute what we call sexual orientation. However, I conclude that even if we agree that interpretation is involved in sexual orientation, it does not follow that there is a choice involved. (shrink)

Sexual Orientation as Symbolic Capital and as the "Object" of Symbolic Violence Sexual orientation is currently understood to be an innate disposition. Heterosexually oriented people are perceived to be in the majority and homosexually oriented people as the minority. Using Pierre Bourdieu's concepts of symbolic power, symbolic violence and symbolic capital, this paper aims to show how symbolic power and symbolic violence contribute to determining which sexual orientation is associated with the majority and minority populations, and establish (...) what role is played by the symbolic capital derived from sexual orientation. (shrink)

The purpose of this paper is to understand if and how interactions with Sexual Robots will modify users’ relational abilities in human-human relations. We first underline that, in today’s scholar discussion on the ‘symbolic argument’, there is no theoretical framework explaining the process of symbolic shift between human-robot interactions (HRI) and human-human interactions (HHI). To clarify the symbolic shift mechanism, we propose the concept of objectual mediation. Moreover, under the lens of Winnicott’s object-relation theory, we argue that HRI can (...) structurally modify users relationality, degrading intersubjective abilities: Sexual Robots may blurry the limit between the ‘internal object’ and the external one. We conclude that, under certain conditions, interactions with Sexual Robots may bring the user back to an infantile object-relation setting, worsening the user ability to manage relational frustration. This will negatively impact on human-human interactions and social values in general. -/- . (shrink)

New Tenth Anniversary edition of this classic text with a new preface by the author, compares myths about meat-eating with myths about manliness, and seeks to ...

In the research we focus on the construction of the sexual lifestyles of young people—undergraduates—in Slovakia and ask “which cultural sources are used?” and “which cultural demands exert pressures on these constructions?” The analysis was based on the answers respondents provided to a questionnaire relating to the preferences of values, aspirations regarding partner and sexual life as well as the socio-economic background of respondents. On the basis of the factor analysis and other steps, we obtained five groups of (...) respondents with different lifestyles: 1. Liberal—free, 2. Partner—monogamous, 3. Natural—instinctive, 4. Hedonistic—free, 5. Submissive—partner. The research proves that while constructing their sexual lifestyles, young people experience confusion as to their personal interests, preferences, internal orientation of partner relationships, and culturally prescribed norms of monogamous relationships. (shrink)

Here, I examine the epistemic relation between beliefs about the nature of sexual orientation (e.g., beliefs concerning whether orientation is dispositional) and beliefs about the taxonomy of orientation categories (e.g., beliefs concerning whether polyamorous is an orientation category). Current philosophical research gives epistemic priority to the former class of beliefs, such that beliefs about the taxonomy of orientation categories tend to be jettisoned or revised in cases of conflict with beliefs about the nature of sexual orientation. Yet, considering (...) the influence of ideology on beliefs about socially significant phenomena, I argue for an epistemic reversal. (shrink)

I argue that the magnitude and nature of sex differences in aggression, their development, causation, and variability, can be better explained by sexual selection than by the alternative biosocial version of social role theory. Thus, sex differences in physical aggression increase with the degree of risk, occur early in life, peak in young adulthood, and are likely to be mediated by greater male impulsiveness, and greater female fear of physical danger. Male variability in physical aggression is consistent with an (...) alternative life history perspective, and context-dependent variability with responses to reproductive competition, although some variability follows the internal and external influences of social roles. Other sex differences, in variance in reproductive output, threat displays, size and strength, maturation rates, and mortality and conception rates, all indicate that male aggression is part of a sexually selected adaptive complex. Physical aggression between partners can be explained using different evolutionary principles, arising from the conflicts of interest between males and females entering a reproductive alliance, combined with variability following differences in societal gender roles. In this case, social roles are particularly important since they enable both the relatively equality in physical aggression between partners from Western nations, and the considerable cross-national variability, to be explained. (shrink)

I argue against Appel's recent proposal – in this JOURNAL – that there is a fundamental human right to sexual pleasure, and that therefore the sexual pleasure of severely disabled people should be publicly funded – by thereby partially legalizing prostitution. I propose an alternative that does not need to pose a new positive human right; does not need public funding; does not need the legalization of prostitution; and that would offer a better experience to the severely disabled: (...) charitable non-profit organizations whose members would voluntarily and freely provide sexual pleasure to the severely disabled. (shrink)

Pateman challenges the way contemporary society functions by questioning the standard interpretation of an idea that is deeply embedded in American and British political thought: that our rights and freedoms derive from the social contract explicated by Locke, Hobbes, and Rousseau and interpreted in the United States by the Founding Fathers. The author shows how we are told only half the story of the original contract that establishes modern patriarchy. The sexual contract is ignored and thus men's patriarchal right (...) over women is also glossed over. No attention is paid to the problems that arise when women are excluded from the original contract but incorporated into the new contractual order. One of the main targets of the book is those who try to turn contractarian theory to progressive use, and a major thesis of the book is that this is not possible. Thus those feminists who have looked to a more "proper" contract- one between genuinely equal partners, or one entered into without any coercion- are misleading themselves. In the author's words, "In contract theory universal freedom is always a hypothesis, a story, a political fiction. Contract always generates political right in the forms of domination and subordination." Thus the book is also aimed at mainstream political theorists, and socialist and other critics of contract theory. The author offers a sweeping challenge to conventional understandings- of both left and right- of actual contracts in everyday life: the marriage contract, the employment contract, the prostitution contract, and the new surrogate mother contract. By bringing a feminist perspective to bear on the contradictions and paradoxes surrounding women and contract, and the relation between the sexes, she is able to shed new light on fundamental political problems of freedom and subordination. (shrink)