Abstract
Building on previous work that identified different types of orgasm in women (King, Belsky, Mah, & Binik, 2011), the goal of the present study was to extend such typological work and determine whether female orgasmic variability tracked potentially evolutionarily salient sexual partner characteristics (e.g., those displaying possible immune-system compatibility). A total of 265 females completed an Internet survey about their orgasmic experience—achieved either with partners or alone. For partnered orgasms, they also provided details of partner characteristics and sexual behaviors. Latent class analysis revealed two orgasm types which were meaningfully distinguishable in terms of sensations and location—either centered on the surface of genitalia or deep inside. Deep orgasms were associated with internal sensations consistent with proposed functions of female orgasm in terms of differential sperm insuck. Such orgasms were associated with partners who were perceived as considerate, dominant, with a noticeably attractive smell, and as providing firm penetration. However, some hypothesized reproductively significant partner characteristics were not differentially associated with deep orgasms (i.e., muscularity, aggression, masculinity). Results were discussed and future research directions outlined. In particular, it is suggested that sexual passion between partners is a non-accidental component of sexual functioning and that this has too frequently been missing in sex research involving humans. Direct physiological measures of the results of female orgasm need to be undertaken. Additionally, the intriguing phenomenon of female ejaculation deserves scientific attention.
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Notes
Details of the questions asked in the pilot are available from the corresponding author.
Tables paralleling the remaining (third) set of data, with comparison to the first and second sets of data, are available from the corresponding author.
Data are available from the corresponding author.
References
Achille, L., & Wilkinson, C. (2001). Submission to the BBFC: Female ejaculation: Research contrary to BBFC ruling and replies. An open letter detailing objections to banning portrayals of female ejaculation on film. On behalf of Feminists against Censorship. Retrieved August 16, 2010 from http://www.fiawol.demon.co.uk/FAC/femejac.htm
Ammersbach, R. (1930). Sterilität und frigidität. Medizinische Wochenschrift, 77, 225–227.
Anderson, H. M., & Dennerstein, L. (1994). Increased female sexual response after oxytocin. British Medical Journal, 309, 929.
Anderson, H. M., & Dennerstein, L. (1995). Oxytocin and female sexuality. Gynecological and Obstetric Investigation, 40, 217–221.
Ayinde, B. A., Onwukaeme, D. N., & Nworgu, Z. A. M. (2006). Oxytocic effects of the water extract of Musanga cecropioides R. Brown (Moraceae) stem bark. African Journal of Biotechnology, 5, 1350–1354.
Bahrke, M. S., Yesalis, C. E., & Wright, J. E. (1990). Psychological and behavioural effects of endogenous testosterone levels and anabolic-androgenic steroids among males: A review. Sports Medicine, 5, 303–337.
Baker, R., & Bellis, M. A. (1993a). Human sperm competition: Ejaculate adjustment by males and the function of masturbation. Animal Behaviour, 46, 861–885.
Baker, R., & Bellis, M. A. (1993b). Human sperm competition: Ejaculate manipulation by females and a function for the female orgasm. Animal Behaviour, 46, 887–909.
Barash, D. (2005). Let a thousand orgasms bloom! Review of the book The case of the female orgasm: Bias in the science of evolution by E. A. Lloyd. Evolutionary Psychology, 3, 347–354.
Bentler, P. M., & Peeler, W. H. (1979). Models of female orgasm. Archives of Sexual Behavior, 8, 405–423.
Binik, Y. M. (2001). Sexuality and the internet: Lots of hyp(otheses): Only a little data. Journal of Sex Research, 38, 281–282.
Birkhead, T. R. (2000). Promiscuity: An evolutionary history of sperm competition. Cambridge, MA: Harvard University Press.
Blaicher, W., Gruber, D., Bieglmayer, C., Blaicher, A. M., Knogler, W., & Huber, J. C. (1999). The role of oxytocin in relation to female sexual arousal. Gynaecologic and Obstetric Investigation, 47, 125–126.
Borgerhoff Mulder, M. (1992). Reproductive decisions. In E. A. Smith & B. Winterhalder (Eds.), Evolutionary ecology and human behavior (pp. 339–374). Hawthorne, NY: Aldine deGruyter.
Brody, S. (2007). Vaginal orgasm is associated with better psychological function. Sexual and Relationship Therapy, 22, 173–191.
Buss, D. M. (1989). Sex differences in human mate selection: Evolutionary hypotheses tested in 37 cultures. Behavioural and Brain Sciences, 12, 1–49.
Buss, D. M. (1998). Sexual strategies theory: Historical origins and current status. Journal of Sex Research, 35, 19–31.
Buss, D. M. (2004). Evolutionary psychology (2nd ed.). Boston: Pearson.
Buss, D. M., & Schmitt, D. P. (1993). Sexual strategies theory: A contextual evolutionary analysis of human mating. Psychological Review, 100, 204–232.
Buss, D. M., & Shackelford, T. K. (2008). Attractive women want it all: Good genes, investment, parenting indicators, and commitment. Evolutionary Psychology, 6, 134–146.
Butler, C. A. (1976). New data about female sexual response. Journal of Sex and Marital Therapy, 2, 40–46.
Carmichael, M. S., Warburton, V. L., Dixen, J., & Davidson, J. M. (1994). Relationships among cardio-vascular, muscular and oxytocin responses during human sexual activity. Archives of Sexual Behavior, 23, 59–79.
Costa, R. M., & Brody, S. (2007). Women’s relationship quality is associated with specifically penile-vaginal intercourse orgasm and frequency. Journal of Sex and Marital Therapy, 33, 319–327.
Cronin, H. (1991). The ant and the peacock. Cambridge: Cambridge University Press.
Cronin, H. (1992). Sexual selection: Historical perspectives. In E. F. Keller & E. A. Lloyd (Eds.), Keywords in evolutionary biology (pp. 286–293). Cambridge, MA: Harvard University Press.
Darwin, C. R. (1871). The descent of man (2nd ed.). London: Murray.
Dawkins, R. (2006). The selfish gene. New York: Oxford University Press.
Dawood, K., Kirk, K. M., Bailey, J. M., Andrews, P. W., & Martin, N. G. (2005). Genetic and environmental influences on the frequency of orgasm in women. Twin Research and Human Genetics, 8, 27–33.
DeBruine, L. M., Jones, B. C., Little, A. C., Boothroyd, L. G., Perrett, D. I., Penton-Voak, I. S., et al. (2005a). Correlated preferences for facial masculinity and ideal or actual partner’s masculinity. Proceedings of the Royal Society B-Biological Sciences, 273, 1355–1360.
DeBruine, L. M., Jones, B. C., & Perrett, D. I. (2005b). Women’s attractiveness judgments of self-resembling faces change across the menstrual cycle. Hormones and Behavior, 47, 379–383.
Dickinson, R. L. (1949). Human sex anatomy. New York: Robert E. Krieger.
Eberhard, W. G. (1985). Sexual selection and animal genitalia. Cambridge, MA: Harvard University Press.
Eberhard, W. G. (1996). Female control: Sexual selection by cryptic female choice. Princeton, NJ: Princeton University Press.
Eschler, L. (2004). The physiology of the female orgasm as a proximate mechanism. Sexualities, Evolution and Gender, 6, 171–194.
Eschler, L. (2005, June). Does the female orgasm inform reproductively strategic choices? Poster session presented at the meeting of the Human Behavior & Evolution Society, Austin, TX.
Evans, E. I. (1933). The transport of spermatozoa in the dog. American Journal of Physiology, 105, 287–293.
Fieder, M., Huber, S., Bookstein, F. L., Iber, K., Schafer, K., Winckler, G., et al. (2005). Status and reproduction in humans: New evidence for the validity of evolutionary explanations on basis of a university sample. Ethology, 111, 940–950.
Fisher, S. (1973). The female orgasm. New York: Basic Books.
Folstad, I., & Karter, A. J. (1992). Parasites, bright males, and the immunocompetence handicap. American Naturalist, 139, 603–622.
Fox, C. A. (1976). Some aspects and implications of coital physiology. Journal of Sex and Marital Therapy, 2, 205–213.
Fox, C. A., & Fox, B. (1971). A comparative study of coital physiology, with special reference to the sexual climax. Journal of Reproduction and Fertility, 24, 319–336.
Fox, C. A., Wolff, H. S., & Baker, J. A. (1970). Measurement of intra-vaginal and intra-uterine pressures during human coitus by radio-telemetry. Journal of Reproduction and Fertility, 22, 243–251.
Fraley, R. C. (2004). How to conduct behavioral research over the Internet: A beginner’s guide to HTML and CGI/Perl. New York: Guilford Press.
Frederick, D. A., Fessler, D. M. T., & Haselton, M. G. (2005). Do representations of male muscularity differ in men’s and women’s magazines? Body Image, 2, 81–86.
Frederick, D. A., & Haselton, M. G. (2007). Why is muscularity sexy? Tests of the fitness indicator hypothesis. Personality and Social Psychology Bulletin, 33, 1167–1183.
Gangestad, S. W., & Simpson, J. A. (2000). The evolution of human mating: Trade-offs and strategic pluralism. Behavioral and Brain Sciences, 23, 573–644.
Gangestad, S. W., Simpson, J. A., Cousins, A. J., Garver-Apgar, C. E., & Christensen, P. N. (2004). Women’s preferences for male behavioural displays change across the menstrual cycle. Psychological Science, 15, 203–207.
Gangestad, S. W., & Thornhill, R. (1998). Menstrual cycle variation in women’s preferences for the scent of symmetrical men. Proceedings of Royal Society, Biological Science, 265, 927–933.
Gangestad, S. W., Thornhill, R., & Garver-Apgar, C. E. (2005). Adaptations to ovulation: Implications for sexual and social behavior. Current Directions in Psychological Science, 14, 312–316.
Genell, S. (1939). Experimental investigations of the muscular functions of the vagina and the uterus in the rat. Acta Obstetricia et Gynecologica Scandinavica, 19, 113–175.
Gill, P. (2007). Managing reproduction—critical control points in exceeding 30 pigs per sow per year. In Proceedings of the London swine conference, pp. 171–184.
Goldfoot, D. A., Westerborg-vanLoon, H., Groeneveld, W., & Slob, A. K. (1980). Behavioral and physiological evidence of sexual climax in the female stump-tailed macaque (Macaque arctoides). Science, 208, 1477–1479.
Gosling, S. D., Vazire, S., Srivastava, S., & John, O. P. (2004). Should we trust web-based studies? A comparative analysis of six preconceptions about Internet questionnaires. American Psychologist, 59, 93–104.
Gould, S. J. (1987). Freudian slip. Natural History, 96, 14–21.
Gowaty, P. A. (1997). Principles of females’ perspectives in avian behavioral ecology. Journal of Avian Biology, 28, 95–102.
Grafenberg, E. (1950). The role of the urethra in female orgasm. International Journal of Sexology, 3, 145–148.
Greiling, H., & Buss, D. (2006). Women’s sexual strategies: The hidden dimension of extra-pair mating. Personality and Individual Differences, 28, 929–963.
Grimes, D. A. (1999). Role of the cervix in sexual response: Evidence for and against. Clinical Obstetrics and Gynecology, 42, 972–978.
Hamilton, W. D. (1982). Pathogens as causes of genetic diversity in their host populations. In R. M. Anderson & R. M. May (Eds.), Population biology of infectious diseases (pp. 269–296). New York: Springer.
Hamilton, W. D., & Zuk, M. (1982). Heritable true fitness and bright birds: a role for parasites? Science, 218, 384–387.
Hartman, C. G., & Ball, J. (1931). On the almost instantaneous transport of spermatozoa through the cervix and uterus of the rat. Proceedings of the Society of Experimental Biological Medicine, 28, 312–314.
Haselton, M. G., & Miller, G. F. (2006). Women’s fertility across the cycle increases the short-term attractiveness of creative intelligence. Human Nature, 17, 50–73.
Havlicek, J., Saxton, T. K., Roberts, S. C., Jozifkova, E., Lhota, S., Valentova, J., et al. (2008). He sees, she smells? Male and female reports of sensory reliance in mate choice and non-mate choice contexts. Personality and Individual Differences, 45, 565–570.
Hite, S. (1976). The Hite report: A nationwide survey of female sexuality. London: Bloomsbury.
Hopcroft, R. L. (2006). Sex, status, and reproductive success in the contemporary United States. Evolution and Human Behavior, 27, 104–120.
Hrdy, S. B. (1981). The woman that never evolved. Cambridge: Harvard University Press.
Hrdy, S. B. (1986). Empathy, polyandry, and the myth of the coy female. In R. Bleier (Ed.), Feminist approaches to science (pp. 119–143). New York: Pergamon Press.
Insel, T. R. (2010). The challenge of translation in social neuroscience: A review of oxytocin, vasopressin, and affiliative behavior. Neuron, 65, 768–779.
Ito, K. (1962). A comparison of the powers of two multivariate analysis of variance tests. Biometrica, 49, 455–462.
Jozifkova, E., & Flegr, J. (2006). Dominance, submissivity (and homosexuality) in general population. Testing of evolutionary hypothesis of sadomasochism by internet-trap-method. Neuroendocrinology Letters, 27, 711–718.
Jozifkova, E., & Konvicka, M. (2009). Sexual arousal by higher- and lower-ranking partner: Manifestation of a mating strategy? Journal of Sexual Medicine, 6, 3327–3334.
Judson, O. (2003). Dr Tatiana’s sex advice to all creation. London: Random House.
Judson, O. (2005). Anticlimax. Review of the book The case of the female orgasm: Bias in the science of evolution by E. A. Lloyd. Nature, 436, 916–917.
King, R. J., Belsky, J., Mah, K., & Binik, Y. (2011). Are there different types of female orgasm? Archives of Sexual Behavior, 40, 865–875.
Kinsey, A. C., Pomeroy, W. B., Martin, C. E., & Gebhard, P. H. (1953). Sexual behavior in the human female. Philadelphia: W. B. Saunders.
Knox, R. V. (2010). Artificial insemination of swine: Improving reproductive efficiency of the breeding herd. Retrieved from http://www.livestocktrail.uiuc.edu/swinerepronet/publications/extension/Mannitoba.pdf
Komisaruk, B. R., & Sansone, G. (2003). Neural pathways mediating vaginal function: The vagus nerves and spinal cord oxytocin. Scandinavian Journal of Psychology, 44, 241–250.
Komisaruk, B. R., Whipple, B., Crawford, A., Liu, W. C., Kalnin, A., & Mosier, K. (2004). Brain activation during vaginocervical self-stimulation and orgasm in women with complete spinal cord injury: fMRI evidence of mediation by the vagus nerves. Brain Research, 1024, 77–88.
Komisaruk, B. R., Whipple, B., Gerdes, C. A., Harkness, B., & Keyes, J. W. (1997). Brainstem responses to cervical self-stimulation: Preliminary PET-scan analysis. International Behavioral Neuroscience Society Annual Conference Abstract Book, 6, 38.
Kosfield, M., Heinrichs, M., Zak, P., Fischbacher, U., & Fehr, E. (2005). Oxytocin increases trust in humans. Nature, 435, 673–676.
Krehbiel, R. H., & Carstens, H. P. (1939). Roentgen studies of the mechanism involved in sperm transportation in the female rabbit. American Journal of Physiology, 125, 571–577.
Krüger, T. H. C., Haake, P., Hartmann, U., Schedlowski, M., & Exton, M. (2002). Orgasm-induced prolactin secretion: Feedback control of sexual drive? Neuroscience and Behavioural Reviews, 26, 31–44.
Läuter, J. (1978). Sample size requirements for T2 test of MANOVA (tables for one way classification). Biometrical Journal, 20, 389–406.
Levin, R. (1981). The female orgasm-a current appraisal. Journal of Psychosomatic Research, 25, 119–133.
Levin, R. (1998). Sex and the human female reproductive tract-what really happens during and after coitus. International Journal of Impotence Research, 10(Suppl. 1), S14–S21.
Levin, R. (2001). Sexual desire and the deconstruction and reconstruction of the human female sexual response model of Masters and Johnson. In W. Everard, E. Laan, & S. Both (Eds.), Sexual appetite, desire and motivation: Energetics of the sexual system (pp. 63–93). Amsterdam: Royal Netherlands Academy of Arts and Sciences.
Levin, R. (2002). The physiology of sexual arousal in the human female: A recreational and procreational synthesis. Archives of Sexual Behavior, 31, 405–411.
Levin, R. (2004). An orgasm is…who defines what an orgasm is? Sexual and Relationship Therapy, 19, 101–107.
Levin, R. L., & Wagner, G. (1985). Orgasm in women in the laboratory-quantitative studies on duration, intensity, latency, and vaginal blood flow. Archives of Sexual Behavior, 14, 439–449.
Levis, D. G. (2000). Effect of oxytocin at the time of insemination on reproductive performance: A review. Nebraska Swine Report. University of Nebraska, pp. 11–17. Retrieved from http://digitalcommons.unl.edu/coopext_swine/114/
Lewontin, R. C. (1978). Adaptation. Scientific American, 239, 156–169.
Lightfoot-Klein, H. (1984). Prisoners of ritual: An odyssey into female genital circumcision in Africa. New York: Harrington Park Press.
Lloyd, E. A. (2005). The case of the female orgasm: Bias in the science of evolution. Cambridge, MA: Harvard University Press.
Mah, K., & Binik, Y. M. (2001). The nature of human orgasm: A critical review of major trends. Clinical Psychology Review, 21, 823–856.
Mah, K., & Binik, Y. M. (2002). Do all orgasms feel alike? Evaluating a two-dimensional model of the orgasm experience across gender and sexual context. Journal of Sex Research, 39, 104–113.
Maines, R. P. (1999). The technology of orgasm: Hysteria, the vibrator, and women’s sexual satisfaction. Baltimore: Johns Hopkins University Press.
Masters, W. H., & Johnson, V. E. (1965). The sexual response cycles of the human male and female: comparative anatomy and physiology. In F. A. Beach (Ed.), Sex and behavior (pp. 512–534). New York: Wiley.
Masters, W. H., & Johnson, V. E. (1966). Human sexual response. London: Churchill.
McCaughey, M., & French, C. (2001). Women’s sex-toy parties: Technology, orgasm, and commodification. Sexuality and Culture, 5, 77–96.
Millar, R. (1952). Forces observed during coitus in thoroughbreds. Australian Ethology Journal, 28, 127–128.
Morris, D. (1967). The naked ape. London: Jonathan Cape.
Mueller, U., & Mazur, A. (2001). Evidence of unconstrained directional selection for male tallness. Behavioral Ecology and Sociobiology, 50, 302–311.
Nettle, D. (2001). Height and reproductive success in a cohort of British men. Human Nature, 13, 473–491.
Nettle, D., & Pollet, T. V. (2008). Natural selection on male wealth in humans. American Naturalist, 172, 658–666.
Nosek, B. A., Banaji, M. R., & Greenwald, A. G. (2002). E-research: Ethics, security, design, and control in psychological research on the Internet. Journal of Social Issues, 58, 161–176.
O’Connell, H. E., Hutson, J. M., Anderson, C. R., & Plenter, R. J. (1998). Anatomical relationship between urethra and clitoris. Journal of Urology, 159, 1892–1897.
O’Connell, H. E., Sanjeevan, K., & Hutson, J. M. (2005). Anatomy of the clitoris. Journal of Urology, 174, 1189–1195.
Olson, C. L. (1976). On choosing a test statistic in multivariate analysis of variance. Psychological Bulletin, 83, 579–586.
Pawlowski, B., Dunbar, R. I. M., & Lipowic, A. (2000). Evolutionary fitness: Tall men have more reproductive success. Nature, 403, 156.
Perry, J. D., & Whipple, B. (1981). Pelvic muscle strength of female ejaculators: Evidence in support of a new theory of orgasm. Journal of Sex Research, 17, 22–39.
Petrie, M. (2002). Improved growth and survival of offspring of peacocks with more elaborate trains. Nature, 371, 598–599.
Pillai, K. C. S., & Jayachandran, K. (1967). Power comparisons of tests of two multivariate hypotheses based on four criteria. Biometrica, 54, 195–210.
Pollet, T., & Nettle, D. (2009). Partner wealth predicts self-reported orgasm frequency in a sample of Chinese women. Evolution and Human Behavior, 30, 146–151.
Pope, H. G., & Katz, D. L. (1994). Psychiatric and medical effects of anabolic-androgenic steroid use: A controlled study of 160 athletes. Archives of General Psychiatry, 51, 375–382.
Pound, N., & Daly, M. (2000). Functional significance of human female orgasm still hypothetical. Behavioral and Brain Sciences, 23, 620–621.
Puts, D. A. (2005). Mating context and menstrual phase affect women’s preference for male voice pitch. Evolution and Human Behavior, 26, 388–397.
Puts, D. A. (2006). Review of the book The case of the female orgasm: Bias in the science of evolution by E. A. Lloyd. Archives of Sexual Behavior, 35, 103–108.
Puts, D. A. (2007). Of bugs and boojums: Female orgasm as facultative adaptation [Letter to the Editor]. Archives of Sexual Behavior, 36, 337–339.
Puts, D. A. (2010). Beauty and the beast: Mechanisms of sexual selection in humans. Evolution and Human Behavior, 31, 157–175.
Puts, D. A., & Dawood, K. (2006). The evolution of female orgasm: Adaptation or byproduct? Twin Studies and Human Genetics, 9, 467–472.
Rancour-Laferriere, D. (1983). Four adaptive aspects of the female orgasm. Journal of Social and Biological Structures, 6, 319–333.
Robertiello, R. C. (1970). The “clitoral vs. vaginal orgasm” controversy and some of its ramifications. Journal of Sex Research, 6, 307–311.
Russell, J. A., Leng, G., & J. Douglas, A. J. (2003). The magnocellular oxytocin system, the fount of maternity: Adaptations in pregnancy. Frontiers in Neuroendocrinology, 24, 27–61.
Schober, J. M., Meyer-Bahlburg, H. F. L., & Ransley, P. G. (2004). Self-assessment of genital anatomy, sexual sensitivity and function in women: Implications for genitoplasty. British Journal of Urology, 94, 589–594.
Schultz, W. W., van Andel, P., Sabelis, I., & Mooyaart, E. (1999). Magnetic resonance imaging of male and female genitals during coitus and female sexual arousal. British Medical Journal, 319, 1596–1600.
Scott, I. M. L., Pound, N., Stephen, I. D., Clark, A. P., & Penton-Voak, I. S. (2010). Does masculinity matter? The contribution of masculine face shape to male attractiveness in humans. PLoS One, 5(10), e13585.
Sear, R. (2006). Height and reproductive success: How a Gambian population compares to the West. Human Nature, 17, 405–418.
Shepperd, J. A., & Strathman, A. J. (1989). Attractiveness and height: The role of stature in dating preference, frequency of dating, and perceptions of attractiveness. Personality and Social Psychology Bulletin, 15, 617–627.
Singer, J., & Singer, I. (1972). Types of female orgasm. Journal of Sex Research, 8, 255–267.
Skinner, B. F. (1938). The behavior of organisms. New York: Appleton-Century-Crofts.
Sundahl, D. (2003). Female ejaculation and the G-spot. London: Hunter House.
Sunder, M. (2006). Physical stature and intelligence as predictors of the timing of baby boomers’ very first date. Journal of Biosocial Science, 38, 821–833.
Symons, D. (1979). The evolution of human sexuality. New York: Oxford University Press.
Tabachnick, B. G., & Fidell, L. S. (2001). Using multivariate statistics (4th ed.). Needham Heights, MA: Allyn & Bacon.
Thornhill, R., & Gangestad, S. W. (1999). The scent of symmetry: A human pheromone that signals fitness? Evolution and Human Behavior, 20, 175–201.
Thornhill, R., Gangestad, S. W., & Comer, R. (1995). Human female orgasm and mate fluctuating asymmetry. Animal Behaviour, 50, 1601–1615.
Thornhill, R., Gangestad, S. W., Miller, R., Scheyd, G., McCollough, J., & Franklin, M. (2003). MHC, symmetry and body scent attractiveness in men and women (Homo sapiens). Behavioral Ecology, 14, 668–678.
Tinbergen, N. (1963). On aims and methods in ethology. Zeitschrift für Tierpsychologie, 20, 410–433.
Toner, J. P., & Adler, N. T. (1986). Influence of mating and vaginocervical stimulation on rat uterine activity. Journal of Reproduction and Fertility, 78, 239–249.
Trapl, J. (1943). Neue Anschauungen über den Ei- und Samentransport in den inneren Geschlechtsteilen der Frau. Zentralblatt für Gynäkologie, 67, 547.
Trivers, R. (1972). Parental investment and sexual selection. In B. Campbell (Ed.), Sexual selection and the descent of man (pp. 136–179). Chicago: Aldine.
Troisi, A., & Carosi, M. (1998). Female orgasm rate increases with male dominance in Japanese macaques. Animal Behaviour, 56, 1261–1266.
VanDemark, N. L., & Moeller, A. N. (1951). Speed of spermatozoan transport in the reproductive tract of the estrous cow. American Journal of Physiology, 165, 674–679.
Wedekind, C., Escher, S., Van deWaal, M., & Frei, E. (2007). The major histocompatibility complex and perfumers’ descriptions of human body odors. Evolutionary Psychology, 5, 330–343.
Wedekind, C., & Penn, D. (2000). MHC genes, body odours, and odour preference. Nephrology, Dialysis, Transplantation, 15, 1269–1271.
Wedekind, C., Seebeck, T., Bettens, F., & Paepke, A. J. (1995). MHC-dependent mate preferences in humans. Proceedings of the Royal Society B, 260, 245–249.
West-Eberhard, M. J. (1992). Adaptation: Current uses. In E. F. Keller & E. A. Lloyd (Eds.), Keywords in evolutionary biology (pp. 13–18). Cambridge, MA: Harvard University Press.
Whipple, B., Ogden, G., & Komisaruk, B. R. (1992). Physiological correlates of imagery induced orgasm in women. Archives of Sexual Behavior, 21, 121–133.
Wildt, L., Kissler, S., Licht, P., & Becker, W. (1998). Sperm transport in the human female genital tract and its modulation by oxytocin as assessed by hysterosalpingoscintigraphy, hysterotonography, electrohysterography and Doppler sonography. Human Reproduction Update, 4, 655–666.
Zahavi, A. (1975). Mate selection—a selection for a handicap. Journal of Theoretical Biology, 53, 205–214.
Zak, P. J., Kurzban, R., & Matzner, W. T. (2005). Oxytocin is associated with human trustworthiness. Hormones and Behavior, 48, 522–527.
Zaviačič, M., Doležalová, S., Holomán, I. K., Zaviačičová, A., Mikulecký, M., & Brázdil, V. (1988). Concentrations of fructose in female ejaculate and urine: A comparative biochemical study. Journal of Sex Research, 24, 319–325.
Zervomanolakis, I., Ott, H. W., Hadziomerovic, D., Mattle, V., Seeber, B. E., Virgolini, I., et al. (2007). Physiology of upward transport in the human female genital tract. Annals of the New York Academy of Science, 1101, 1–20.
Zucker, K. (2002). From the Editor’s desk: Receiving the torch in the era of sexological renaissance. Archives of Sexual Behavior, 31, 1–6.
Zuk, M. (2002). Sexual selections: What we can and can’t learn about sex from animals. Berkeley: University of California Press.
Zuk, M. (2006). The case of the female orgasm [Review of the book: The case of the female orgasm: Bias in the science of evolution by E. A. Lloyd]. Perspectives in Biology and Medicine, 49, 294–298.
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Appendix
Appendix
Survey Questions and Possible Responses
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(1)
Did you experience any internal sucking sensations? (1. None, 2. Weak, 3. Moderate, 4. Strong)
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(2)
How clear was your thinking after orgasm? (1. Total loss of clarity, 2. Clear thought as normally experienced, 3. Clearer-than-normal thinking)
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(3)
How relaxed did you feel following orgasm? (1.Very relaxed, 2. Somewhat relaxed, 3. Somewhat excited, 4.Very excited)
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(4)
How relaxed did you feel prior to orgasm? (1.Very relaxed, 2. Somewhat relaxed, 3. Somewhat anxious, 4.Very anxious)
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(5)
How localised was your orgasm? (1. Very localized, 2. Somewhat localized, 3. Whole body involved)
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(6)
How noisy were you during orgasm? (1. Not/silent, 2. Somewhat noisy, 3. Very noisy)
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(7)
Where was the orgasm centered? (On the surface of the genitals vs. Deep inside)
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(8)
Did you experience any floating sensations following orgasm? (Yes/No)
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(9)
Did you experience any apnoea (catching of breath) (Yes/No)
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(10)
Did you experience any sense of loss of self following orgasm? (Yes/No)
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(11)
Did you ejaculate during orgasm? (Yes/No)
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(12)
Did you experience a sensation akin to a desire to urinate prior to orgasm? (Yes/No)
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(13)
How long from the start of sexual intimacy did it take for orgasm to occur? (1. A few minutes, 2. More than a few minutes but less than 10, 3. More than 10 min but less than half an hour, 4. More than 30 but less than 60 min, 5. An hour or more)
Partner questions:
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(1)
How aggressive was your partner’s behavior during sex? (1. Very tender, 2. Somewhat tender, 3. Somewhat aggressive, 4. Very aggressive)
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(2)
How considerate was your partner’s behavior during sex? (1. Very selfish, 2. Somewhat selfish, 3. Somewhat considerate, 4. Very considerate)
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(3)
How muscular was your sexual partner? (1. Not at all, 2. Not very muscular, 3. Somewhat muscular, 4. Very muscular)
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(4)
How masculine would you describe your partner as being? (1. Very feminine, 2. Somewhat feminine, 3. Somewhat masculine, 4. Very masculine)
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(5)
5) How attractive was your sexual partner’s smell? (1. Unattractive, 2. Neither attractive nor unattractive, 3. Attractive)
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(6)
How dominant was your partner’s behavior during sex? (1.Very submissive, 2.Somewhat submissive, 3. Neither dominant nor submissive, 4. Somewhat dominant, 5. Very dominant)
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(7)
How vigorous was penetration during intercourse—if any? (1.Very gentle, 2. Fairly gentle, 3.Fairly vigorous, 4.Very vigorous)
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King, R., Belsky, J. A Typological Approach to Testing the Evolutionary Functions of Human Female Orgasm. Arch Sex Behav 41, 1145–1160 (2012). https://doi.org/10.1007/s10508-012-0001-0
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DOI: https://doi.org/10.1007/s10508-012-0001-0