Is homosexuality a paraphilia? The evidence for and against

James M Cantor, James M Cantor

Abstract

Whether homosexuality should be described as one among many paraphilic sexual interests or an altogether different dimension of sexual interest has long been discussed in terms of its political and social implications. The present article examined the question instead by comparing the major correlates and other features of homosexuality and of the paraphilias, including prevalence, sex ratio, onset and course, fraternal birth order, physical height, handedness, IQ and cognitive neuropsychological profile, and neuroanatomy. Although those literatures remain underdeveloped, the existing findings thus far suggest that homosexuality has a pattern of correlates largely, but not entirely, distinct from that identified among the paraphilias. At least, if homosexuality were deemed a paraphilia, it would be relatively unique among them, taxonometrically speaking.

References

    1. ACSF Investigators AIDS and sexual behaviour in France. Nature. 1992;360:407–409.
    1. Allen LS, Gorski RA. Sexual dimorphism of the anterior commissure and massa intermedia of the human brain. Journal of Comparative Neurology. 1991;112:97–104.
    1. Allen LS, Gorski RA. Sexual orientation and the size of the anterior commissure in the human brain. Proceedings of the National Academy of Sciences of the United States of America. 1992;89:7199–7202.
    1. Bakan P. Handedness and birth order. Nature. 1971;229:195.
    1. Bakan P, Dibb G, Reed P. Handedness and birth stress. Neuropsychologia. 1973;11:363–366.
    1. Baker, L. (1985). Neuropsychological and power spectral EEG characteristics of exhibitionists: A cerebral model of sexual deviation. Unpublished doctoral dissertation, Department of Educational Psychology, University of Alberta.
    1. Batheja M, McManus IC. Handedness in the mentally handicapped. Developmental Medicine and Child Neurology. 1985;27:63–68.
    1. Billy JOG, Tanfer K, Grady WR, Klepinger DH. The sexual behavior of men in the United States. Family Planning Perspectives. 1993;25:52–60.
    1. Bishop DVM. Handedness and developmental disorder. Oxford: Blackwell; 1990.
    1. Blanchard R. The classification and labeling of nonhomosexual gender dysphorias. Archives of Sexual Behavior. 1989;18:315–334.
    1. Blanchard R. The concept of autogynephilia and the typology of male gender dysphoria. Journal of Nervous and Mental Disease. 1989;177:616–623.
    1. Blanchard R. Clinical observations and systematic studies of autogynephilia. Journal of Sex and Marital Therapy. 1991;17:235–251.
    1. Blanchard R. Birth order and sibling sex ratio in homosexual versus heterosexual males and females. Annual Review of Sex Research. 1997;8:27–67.
    1. Blanchard R. Fraternal birth order and the maternal immune hypothesis of male homosexuality. Hormones and Behavior. 2001;40:105–114.
    1. Blanchard R. Quantitative and theoretical analyses of the relation between older brothers and homosexuality in men. Journal of Theoretical Biology. 2004;230:173–187.
    1. Blanchard R. Early history of the concept of autogynephilia. Archives of Sexual Behavior. 2005;34:439–446.
    1. Blanchard R. Supplementary analyses regarding Langevin, Langevin, and Curnoe’s (2007) findings on fraternal birth order in homosexual men. Archives of Sexual Behavior. 2007;36:610–614.
    1. Blanchard R. Review and theory of handedness, birth order, and homosexuality in men. Laterality. 2008;13:51–70.
    1. Blanchard R. The DSM diagnostic criteria for pedophilia. Archives of Sexual Behavior. 2010;39:304–316.
    1. Blanchard R, Barbaree HE, Bogaert AF, Dickey R, Klassen P, Kuban ME, Zucker KJ. Fraternal birth order and sexual orientation in pedophiles. Archives of Sexual Behavior. 2000;29:463–478.
    1. Blanchard R, Bogaert AF. Biodemographic comparisons of homosexual and heterosexual men in the Kinsey interview data. Archives of Sexual Behavior. 1996;25:551–579.
    1. Blanchard R, Cantor JM, Robichaud LK. Biological factors in the development of sexual deviance and aggression in males. In: Barbaree HE, Marshall WL, editors. The juvenile sexual offender. 2. New York: Guilford; 2006. pp. 77–104.
    1. Blanchard R, Dickey R, Jones CL. Comparison of height and weight in homosexual versus nonhomosexual male gender dysphorics. Archives of Sexual Behavior. 1995;24:543–554.
    1. Blanchard R, Klassen P. H-Y antigen and homosexuality in men. Journal of Theoretical Biology. 1997;185:373–378.
    1. Blanchard R, Kolla NJ, Cantor JM, Klassen PE, Dickey R, Kuban ME, Blak T. IQ, handedness, and pedophilia in adult male patients stratified by referral source. Sexual Abuse: A Journal of Research and Treatment. 2005;19:285–309.
    1. Blanchard R, Sheridan PM. Proportion of unmarried siblings of homosexual and nonhomosexual gender-dysphoric patients. Canadian Journal of Psychiatry. 1992;37:163–167.
    1. Blanchard R, Zucker KJ, Cohen-Kettenis PT, Gooren L, Bailey JM. Birth order and sibling sex ratio in two samples of Dutch gender-dysphoric homosexual males. Archives of Sexual Behavior. 1996;25:495–514.
    1. Bogaert AF. Physical development and sexual orientation in women: Height, weight, and age of puberty comparisons. Personality and Individual Differences. 1998;24:115–121.
    1. Bogaert AF. Handedness, criminality, and sexual offending. Neuropsychologia. 2001;39:465–469.
    1. Bogaert AF. The interaction of fraternal birth order and body size in male sexual orientation. Behavioral Neuroscience. 2003;117:381–384.
    1. Bogaert AF. Biological versus nonbiological older brothers and men’s sexual orientation. Proceedings of the National Academy of Sciences of the United States of America. 2006;103:10771–10774.
    1. Bogaert AF. Physical development and sexual orientation in men and women: An analysis of NATSAL-2000. Archives of Sexual Behavior. 2010;39:110–116.
    1. Bogaert AF, Bezeau S, Kuban M, Blanchard R. Pedophilia, sexual orientation, and birth order. Journal of Abnormal Psychology. 1997;106:331–335.
    1. Bogaert AF, Blanchard R. Physical development and sexual orientation in men: Height, weight, and age of puberty differences. Personality and Individual Differences. 1996;21:77–84.
    1. Bogaert AF, Friesen C. Sexual orientation and height, weight, and age of puberty: New tests from a British national probability sample. Biological Psychology. 2002;59:135–145.
    1. Bowden C. Plethysmographic assessment of sexual arousal in pedophiles: The relationship between intelligence, as measured by the WAIS-R and arousal. Dissertation Abstracts International. 1987;50:900.
    1. Breslow N, Evans L, Langley J. On the prevalence and roles of females in the sadomasochistic subculture: Report of an empirical study. Archives of Sexual Behavior. 1985;14:303–317.
    1. Brown GR, Wise TN, Costa PT, Herbst JH, Fagan PJ, Schmidt CW. Personality characteristics and sexual functioning of 188 cross-dressing men. Journal of Nervous and Mental Disease. 1996;184:265–273.
    1. Byne, W., Tobet, S., Mattiace, L. A., Lasco, M. S., Kemether, E., Edgar, M. A., … Jones, L. B. (2001). The interstitial nuclei of the human anterior hypothalamus: An investigation of variation with sex, sexual orientation, and HIV status. Hormones and Behavior, 40, 86–92.
    1. Cantor JM, Blanchard R, Barbaree HE. Sexual disorders. In: Blaney PH, Millon T, editors. Oxford textbook of psychopathology. 2. New York: Oxford University Press; 2009. pp. 527–548.
    1. Cantor, J. M., Blanchard, R., Christensen, B. K., Dickey, R., Klassen, P. E., Beckstead, A. L., … Kuban, M. E. (2004). Intelligence, memory, and handedness in pedophilia. Neuropsychology, 18, 3–14.
    1. Cantor JM, Blanchard R, Paterson AD, Bogaert AF. How many gay men owe their sexual orientation to fraternal birth order? Archives of Sexual Behavior. 2002;31:63–71.
    1. Cantor JM, Blanchard R, Robichaud LK, Christensen BK. Quantitative reanalysis of aggregate data on IQ in sexual offenders. Psychological Bulletin. 2005;131:555–568.
    1. Cantor, J. M., Kabani, N., Christensen, B. K., Zipursky, R. B., Barbaree, H. E., Dickey, R., … Blanchard, R. (2008). Cerebral white matter deficiencies in pedophilic men. Journal of Psychiatric Research, 42, 167–183.
    1. Cantor, J. M., Klassen, P. E., Dickey, R., Christensen, B. K., Kuban, M. E., Blak, T., … Blanchard, R. (2005). Handedness in pedophilia and hebephilia. Archives of Sexual Behavior, 34, 447–459.
    1. Cantor JM, Kuban ME, Blak T, Klassen PE, Dickey R, Blanchard R. Physical height in pedophilia and hebephilia. Sexual Abuse: A Journal of Research and Treatment. 2007;19:395–407.
    1. Chandra, A., Mosher, W. D., Copen, C., & Sionean, C. (2011, March). Sexual behavior, sexual attraction, and sexual identity in the United States: Data from the 2006–2008 National Survey of Family Growth. National Health Statistics Reports, 36.
    1. Cohen KM. Relationships among childhood sex-atypical behavior, spatial ability, handedness, and sexual orientation in men. Archives of Sexual Behavior. 2002;31:129–143.
    1. Cohen, L. J., Nikiforov, K., Gans, S., Poznansky, O., McGeoch, P., Weaver, C., … Galynker, I. (2002). Heterosexual male perpetrators of childhood sexual abuse: A preliminary neuropsychiatric model. Psychiatric Quarterly, 73, 313–336.
    1. Coppen AJ. Body-build of male homosexuals. British Medical Journal. 1959;2(5164):1442–1452.
    1. Cornish KM, McManus IC. Hand preference and hand skill in children with autism. Journal of Autism and Developmental Disorders. 1996;26:597–609.
    1. Côté K, Earls CM, Lalumière ML. Birth order, birth interval, and deviant sexual preferences among sex offenders. Sexual Abuse: Journal of Research and Treatment. 2002;14:67–81.
    1. Denko JD. Klismaphilia: Enema as a sexual preference: Report of two cases. American Journal of Psychotherapy. 1973;27:232–250.
    1. Diamond M. Homosexuality and bisexuality in different populations. Archives of Sexual Behavior. 1993;22:291–310.
    1. Dickson N, Paul C, Herbison P. Same-sex attraction in a birth cohort: Prevalence and persistence in early adulthood. Social Science and Medicine. 2003;56:1607–1615.
    1. Dixon D. An erotic attraction to amputees. Sexuality and Disability. 1983;6:3–19.
    1. Driesen NR, Rax N. The influence of sex, age, and handedness on corpus callosum morphology: A meta-analysis. Psychobiology. 1995;23:240–247.
    1. Eastvold A, Suchy Y, Strassberg D. Executive function profiles of pedophilic and nonpedophilic child molesters. Journal of the International Neuropsychological Society. 2011;17:295–307.
    1. Egan, P. J., Edelman, M. S., & Sherrill, K. (2008). Findings from the Hunter College poll of lesbians, gays and bisexuals: New discoveries about identity, political attitudes, and civic engagement. Retrieved from Human Rights Campaign website: .
    1. Ernulf KE, Innala SM. Sexual bondage: A review and unobtrusive investigation. Archives of Sexual Behavior. 1995;24:631–654.
    1. Evans RB. Physical and biochemical characteristics of homosexual men. Journal of Consulting and Clinical Psychology. 1972;39:140–147.
    1. Fay RE, Turner CF, Klassen AD, Gagnon JH. Prevalence and patterns of same-gender sexual contact among men. Science. 1989;243:338–348.
    1. Fedoroff JP. Buspirone hydrochloride in the treatment of an atypical paraphilia. Archives of Sexual Behavior. 1992;21:401–406.
    1. First MB. Desire for amputation of a limb: Paraphilia, psychosis, or a new type of identity disorder. Psychological Medicine. 2005;35:919–928.
    1. Freund K, Seto MC, Kuban M. Masochism: A multiple case study. Sexuologie. 1995;4:313–324.
    1. Gladue BA, Bailey JM. Spatial ability, handedness, and human sexual orientation. Psychoneuroendocrinology. 1995;20:487–497.
    1. Gladue BA, Beatty WW, Larson J, Staton RD. Sexual orientation and spatial ability in men and women. Psychobiology. 1990;18:101–108.
    1. Gorman GF. Fetishism occurring in identical twins. British Journal of Psychiatry. 1964;110:255–256.
    1. Gosselin C, Wilson G. Sexual variations: Fetishism, sadomasochism, and transvestism. New York: Simon and Schuster; 1980.
    1. Green R. Birth order and ratio of brothers to sisters in transsexuals. Psychological Medicine. 2000;30:789–795.
    1. Grouios G, Sakadami N, Poderi A, Alevriadou A. Excess of non-right handedness among individuals with intellectual disability: Experimental evidence and possible explanations. Journal of Intellectual Disability Research. 1999;43:306–313.
    1. Gunnell D. Commentary: Can adult anthropometry be used as a ‘biomarker’ for prenatal and childhood exposures? International Journal of Epidemiology. 2002;31:390–394.
    1. Hall JAY, Kimura D. Sexual orientation and performance of sexual dimorphic motor tasks. Archives of Sexual Behavior. 1995;24:395–407.
    1. Hardyck C, Petrinovich LF. Left-handedness. Psychological Bulletin. 1977;84:385–404.
    1. Hepper PG, Shahidullah S, White R. Handedness in the human fetus. Neuropsychologia. 1991;11:1107–1111.
    1. Hepper PG, Wells DL, Lynch C. Prenatal thumb sucking is related to postnatal handedness. Neuropsychologia. 2005;43:313–315.
    1. Herdt G, McClintock M. The magical age of 10. Archives of Sexual Behavior. 2000;29:587–606.
    1. Highley JR, Esiri MM, McDonald B, Roberts HC, Walker MA, Crow TJ. The size and fiber composition of the anterior commissure with respect to gender and schizophrenia. Biological Psychiatry. 1999;45:1120–1127.
    1. Hucker S, Langevin R, Wortzman G, Bain J, Handy L, Chambers J, Wright S. Neuropsychological impairment in pedophiles. Canadian Journal of Behavioural Science. 1986;18:440–448.
    1. Hucker, S., Langevin, R., Wortzman, G., Dickey, R., Bain, J., Handy, L., … Wright, S. (1988). Cerebral damage and dysfunction in sexually aggressive men. Annals of Sex Research, 1, 33–47.
    1. Jacobs WL. The utilization of offense characteristics in the classification of male adolescent sexual offenders. Dissertation Abstracts International. 1998;59:4466.
    1. Johnson AM, Wadsworth J, Wellings K, Bradshaw S, Field J. Sexual lifestyles and HIV risk. Nature. 1992;360:410–412.
    1. Kimura D. Sex and cognition. Cambridge, MA: MIT Press; 1999.
    1. Kruijver FP, Fernandez-Guasti A, Fodor M, Kraan EM, Swaab DF. Sex differences in androgen receptors of the human mamillary bodies are related to endocrine status rather than to sexual orientation or transsexuality. Journal of Clinical Endocrinology and Metabolism. 2001;86:818–827.
    1. Lalumière ML, Blanchard R, Zucker KJ. Sexual orientation and handedness in men and women: A meta-analysis. Psychological Bulletin. 2000;126:575–592.
    1. Lalumière ML, Harris GT, Quinsey VL, Rice ME. Sexual deviance and number of older brothers among sexual offenders. Sexual Abuse: A Journal of Research and Treatment. 1998;10:5–15.
    1. Langevin, R., Ben-Aron, M. H., Coulthard, R., Heasman, G., Purins, J. E., Handy, L., … Webster, C. D. (1985). Sexual aggression: Constructing a prediction equation: A controlled pilot study. In R. Langevin (Ed.), Erotic preference, gender identity, and aggression in men: New research studies (pp. 39–76). Hillsdale, NJ: Lawrence Erlbaum.
    1. Langevin R, Lang RA, Wortzman G, Frenzel RR, Wright P. An examination of brain damage and dysfunction in genital exhibitionists. Annals of Sex Research. 1989;2:77–87.
    1. Langevin R, Langevin M, Curnoe S. Family size, birth order, and parental age among male paraphilics and sex offenders. Archives of Sexual Behavior. 2007;36:599–609.
    1. Langevin R, Wortzman G, Dickey R, Wright P, Handy L. Neuropsychological impairment in incest offenders. Annals of Sex Research. 1988;1:401–415.
    1. Långström N, Seto MC. Exhibitionistic and voyeuristic behavior in a Swedish national population survey. Archives of Sexual Behavior. 2006;35:427–435.
    1. Långström N, Zucker KJ. Transvestic fetishism in the general population: Prevalence and correlates. Journal of Sex and Marital Therapy. 2005;31:87–95.
    1. Lasco MS, Jordan TJ, Edgar MA, Petito CK, Byne W. A lack of dimorphism of sex or sexual orientation in the human anterior commissure. Brain Research. 2002;936:95–98.
    1. Laumann EO, Gagnon JH, Michael RT, Michaels S. The social organization of sexuality: Sexual practices in the United States. Chicago: University of Chicago Press; 1994.
    1. LeVay S. A difference in hypothalamic structure between heterosexual and homosexual men. Science. 1991;253:1034–1037.
    1. MacCulloch SI, Gray NS, Phillips HK, Taylor J, MacCulloch MJ. Birth order in sex-offending and aggressive-offending men. Archives of Sexual Behavior. 2004;33:467–474.
    1. Martin JT, Nguyen DH. Anthropometric analysis of homosexuals and heterosexuals: Implications for early hormone exposure. Hormones and Behavior. 2004;45:31–39.
    1. Massie H, Szajnberg N. The ontogeny of a sexual fetish from birth to age 30 and memory processes: A research case report from a prospective longitudinal study. International Journal of Psycho-Analysis. 1997;78:755–771.
    1. Maylor EA, Reimers S, Choi J, Collaer ML, Peters M, Silverman I. Gender and sexual orientation differences in cognition across adulthood: Age is kinder to women than to men regardless of sexual orientation. Archives of Sexual Behavior. 2007;36:235–249.
    1. McClintock M, Herdt G. Rethinking puberty: The development of sexual attraction. Current Directions in Psychological Science. 1996;5:178–183.
    1. McCormick CM, Witelson SF. A cognitive profile of homosexual men compared to heterosexual men and women. Psychoneuroendocrinology. 1991;16:459–473.
    1. Mellan J, Nedoma K, Pondĕlíčková J. Somatosexuální nálezy u pedofilních mužů [Somatosexual findings in pedophilic men] Československá Psychiatrie. 1969;65:30–33.
    1. Mendez MF, Chow T, Ringman J, Twitchell G, Hinkin CH. Pedophilia and temporal lobe disturbances. Journal of Neuropsychiatry and Clinical Neurosciences. 2000;12:71–76.
    1. Neave N, Menaged M, Weightman DR. Sex differences in cognition: The role of testosterone and sexual orientation. Brain and Cognition. 1999;41:245–262.
    1. Papadatou-Pastou M, Martin M, Munafò MR, Jones GV. Sex differences in left-handedness: A meta-analysis of 144 studies. Psychological Bulletin. 2008;134:677–699.
    1. Pruitt WV. Size matters: A comparison of anti- and pro-gay organizations’ estimates of the size of the gay population. Journal of Homosexuality. 2002;42:21–29.
    1. Raboch J, Raboch J. Number of siblings and birth order of sexually dysfunctional males and sexual delinquents. Journal of Sex and Marital Therapy. 1986;12:73–76.
    1. Rahman Q, Abrahams S, Wilson GD. Sexual-orientation-related differences in verbal fluency. Neuropsychology. 2003;17:240–246.
    1. Rahman Q, Andersson D, Govier E. A specific sexual orientation-related difference in navigation strategy. Behavioral Neuroscience. 2005;119:311–316.
    1. Rahman Q, Koerting J. Sexual orientation-related differences in allocentric spatial memory tasks. Hippocampus. 2008;18:55–63.
    1. Rahman Q, Symeonides DJ. Neurodevelopmental correlates of paraphilic sexual interests in men. Archives of Sexual Behavior. 2008;27:166–172.
    1. Rahman Q, Wilson GD. Large sexual-orientation-related differences in performance on mental rotation and judgment of line orientation tasks. Neuropsychology. 2003;17:25–31.
    1. Rahman Q, Wilson GD, Abrahams S. Sexual orientation related differences in spatial memory. Journal of the International Neuropsychological Society. 2003;9:376–383.
    1. Rahman Q, Wilson GD, Abrahams S. Performance differences between adult heterosexual and homosexual men on the Digit-Symbol Substitution subtest of the WAIS-R. Journal of Clinical and Experimental Neuropsychology. 2004;26:141–148.
    1. Rubenstein, J. A. (1992). Neuropsychological and personality differences between controls and pedophiles. Unpublished doctoral dissertation, University of New Mexico, Albuquerque, NM.
    1. Sanders G, Ross-Field L. Sexual orientation and visuo-spatial ability. Brain and Cognition. 1986;5:280–290.
    1. Sanders G, Ross-Field L. Sexual orientation, cognitive abilities and cerebral asymmetry: A review and a hypothesis tested. Italian Journal of Zoology. 1986;20:459–470.
    1. Sanders G, Wright M. Sexual orientation differences in cerebral asymmetry and in the performance of sexually dimorphic cognitive and motor tasks. Archives of Sexual Behavior. 1997;26:463–480.
    1. Schacter SC, Boulton A, Manoach D, O’Connor M, Weintraub S, Blume H, Schomer DL. Handedness in patients with intractable epilepsy: Correlations with side of temporal lobectomy and gender. Journal of Epilepsy. 1995;8:190–192.
    1. Schiffer, B., Peschel, T., Paul, T., Gizewski, E., Forsting, M., Leygraf, N., … Krueger, T. H. C. (2007). Structural brain abnormalities in the frontostriatal system and cerebellum in pedophilia. Journal of Psychiatric Research, 41, 753–762.
    1. Schiltz, K., Witzel, J., Northoff, G., Zierhut, K., Gubka, U., Fellman, H., … Bogerts, B. (2007). Brain pathology in pedophilic offenders: Evidence of volume reduction in the right amygdala and related diencephalic structures. Archives of General Psychiatry, 64, 737–746.
    1. Sell RL, Wells JA, Wypij D. The prevalence of homosexual behavior in the United States, the United Kingdom and France: Results of national population-based samples. Archives of Sexual Behavior. 1995;24:235–248.
    1. Silventoinen K, Lahelma E, Rahkonen O. Social background, adult body-height and health. International Journal of Epidemiology. 1999;28:911–918.
    1. Smith YLS, van Goozen SHM, Kuiper AJ, Cohen-Kettenis PT. Transsexual subtypes: Clinical and theoretical significance. Psychiatry Research. 2005;137:151–160.
    1. Sommer IE, Aleman A, Somers M, Boks MP, Kahn RS. Sex differences in handedness, asymmetry of the planum temporale and functional language lateralization. Brain Research. 2008;1206:76–88.
    1. Soper HV, Satz P, Orsini DL, Henry RR, Zvi JC, Schulman M. Handedness patterns in autism suggest subtypes. Journal of Autism and Developmental Disorders. 1986;16:155–167.
    1. Spitzer RL. Can some gay men and lesbians change their sexual orientation? 200 participants reporting a change from homosexual to heterosexual orientation. Archives of Sexual Behavior. 2003;32:403–417.
    1. Suchy Y, Wittaker JW, Strassberg DS, Eastvold A. Neurocognitive differences between pedophilic and nonpedophilic child molesters. Journal of the International Neuropsychological Society. 2009;15:248–257.
    1. Swaab DF, Hofman MA. An enlarged suprachiasmatic nucleus in homosexual men. Brain Research. 1990;537:141–148.
    1. Taylor D, Myers WC, Robbins L, Barnard GW. An anthropometric study of pedophiles and rapists. Journal of Forensic Sciences. 1993;38:765–768.
    1. Vanden Bergh RL, Kelly JF. Vampirism: A review with new observations. Archives of General Psychiatry. 1964;11:543–547.
    1. Wadsworth MEJ, Hardy RJ, Paul AA, Marshall SF, Cole TJ. Leg and trunk length at 43 years in relation to childhood health, diet and family circumstances: Evidence from the 1946 national birth cohort. International Journal of Epidemiology. 2002;31:383–390.
    1. Wegesin DJ. A neuropsychologic profile of homosexual and heterosexual men and women. Archives of Sexual Behavior. 1998;27:91–108.
    1. Wegesin DJ. Relation between language lateralisation and spatial ability in gay and straight men and women. Laterality. 1998;3:227–239.
    1. Weinberg MS, Williams CJ, Calhan C. Homosexual foot fetishism. Archives of Sexual Behavior. 1994;23:611–626.
    1. Weinberg MS, Williams CJ, Calhan C. “If the shoe fits…”: Exploring male homosexual foot fetishism. Journal of Sex Research. 1995;32:17–27.
    1. Weinrich JD. Nonreproduction, homosexuality, transsexualism, and intelligence: I. A systematic literature review. Journal of Homosexuality. 1978;3:275–289.
    1. Witelson, S. F., Kigar, D. L., Scamvougeras, A., Kideckel, D. M., Buck, B., Stanchev, P. L., … Black, S. (2008). Corpus callosum anatomy in right-handed homosexual and heterosexual men. Archives of Sexual Behavior, 37, 857–863.
    1. Zhou JN, Hofman MA, Gooren LJG, Swaab DF. A sex difference in the human brain and its relation to transsexuality. Nature. 1995;378:68–70.

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