Campus Directory: Paul Vasey

University of Lethbridge

Paul Vasey
Faculty
Psychology Department
Office: D852 (University Hall)
Phone: (403) 329-2407
Email:

Degrees

B.A. (Hons.), M.A., Ph.D. (Primatology)

Expertise

Sexuality, Sex-differences, Gender-differences, Evolution, Development, Cross-species comparisons, Cross-cultural comparisons

Research Areas

Development and evolution of non-conceptive sexuality in Japanese macaques, Development and evolution of male androphilia (i.e., male sexual attraction to males) in Independent Samoa, Sex and sexual orientation differences and similarities in Canada

Previous Research Areas

Sexuality, Sex-differences, Gender-differences, Evolution, Development, Cross-species comparisons, Cross-cultural comparisons, Models for human evolution, Primate intelligence

Alternate Languages

French

About Me

Paul Vasey employs concurrent cross-species and cross-cultural perspectives to answer the question: If reproduction is the engine that drives evolution, why engage in non-conceptive sex? Since 2000, he has conducted research on the development and evolution of female homosexual behavior in free-ranging Japanese monkeys at various sites in Japan. He also studies the development and evolution male same-sex sexual attraction in humans at fieldsites in Samoa, Japan and Mexico. Since 2003, he has worked in Samoa with members of the fa'afafine community—biological males who live "in the manner of a woman." Dr. Vasey is a member of the Editorial Board of the Archives of Sexual Behavior, Canadian Journal of Human Sexuality, Evolutionary Psychology, Evolutionary Psychological Science, and the Journal of Sexual Orientation and Gender Diversity. His work has also been the subject of various documentaries on television (National Geographic's Ultimate Explorer, Discovery Channel, Nature of Things) and the radio (U.S National Public Radio, Canadian Broadcasting Corporation, Radio Netherlands) and has been reported on in hundreds of newspapers and magazines such as the New York Times and The Economist.

Selected Publications

(last five years)

2015

Leca, J-B. Gunst, N., Huffman, M.J., & Vasey, P.L.
Effect of female-biased sex ratios on female homosexual behavior in Japanese macaques: Evidence for the "bisexual preference hypothesis". Archives of Sexual Behavior 44: 2125-2138.

Semenyna, S. & Vasey, P.L.
Victimization due to bullying and physical aggression in Samoan men and women. Personality and Individual Differences, 87: 85-89.

Ottenheimer Carrier, Leca, J.-B., Pellis, S. & Vasey, P.L.
A structural comparison of female-male and female-female mounting in Japanese macaques (Macaca fuscata). Behavioural Processes, 119: 70-75.

Leca, J-B. Gunst, N., & Vasey, P.L.
Comparative development of heterosexual and homosexual behaviors in free-ranging female Japanese macaques. Archives of Sexual Behavior, 44: 1215-1231.

VanderLaan, D.P., Petterson, L.J., Mallard, R.W. & Vasey, P.L.
(Trans)gender role expectations and childcare in Samoa. Journal of Sex Research, 52: 710-720.

Gunst, N., Leca, J-B., & Vasey, P.L.
Influence of sexual competition and social context on homosexual behavior in adolescent female Japanese macaques. American Journal of Primatology, 77: 502-515.

VanderLaan, D.P., Petterson, L.J., & Vasey, P.L.
Elevated Childhood Separation Anxiety: An Early Developmental Expression of Heightened Concern for Kin in Homosexual Men? Personality and Individual Differences, 81: 188-194. (Finalist for the Dr. Sybil Eysenck Young Investigator Award)

Petterson, L.J, Dixson, B.J., Little, A.C. & Vasey, P.L.
Viewing time measures of sexual orientation in Samoan cisgender men who engage in sexual interactions with fa'fafine. PLoS ONE, 10(2): e0116529.

Vasey, P.L. & VanderLaan, D.P.
Evolutionary developmental perspectives on male androphilia in humans. In: Ziegler-Hill, V., Welling, L.M., Shackelford, T.K. (ads.), Evolutionary Perspectives on Social Psychology, pp. 333-343. NY: Springer.



2014

VanderLaan, D.P., Garfield, Z.H., Garfield, M.J, Leca, J-B.L., Vasey, P.L., Leca, J-B., & Hames R.B.
The "Female Fertility-Social Stratification-Hypergyny" Hypothesis of Male Homosexual Preference: Factual, Conceptual and Methodological Errors in Barthes et al. Evolution and Human Behavior, 35: 445-447.

Leca, J-B., Gunst, N., Ottenheimer-Carrier, L. & Vasey, P.L.
Intergroup variation in non-conceptive mounting behavior in Japanese macaques: could it be cultural? Animal Behavior and Cognition, 1(3): 381-405.

Leca, J-B., Gunst, N., & Vasey, P.L.
Development of sexual behaviors in female Japanese macaques. Developmental Psychobiology, 56: 1199-1213.

VanderLaan, D.P. & Vasey, P. L.
Evidence of enhanced cognitive biases for maximizing indirect fitness in Samoan fa'afafine, Archives of Sexual Behavior, 43: 1009-1022.

Leca, J-B. Gunst, N., & Vasey, P.L.
Male homosexual behavior in an all-male group of Japanese macaques at Minoo, Japan. Archives of Sexual Behavior, 43: 853-861.

Vasey, P.L., Parker, J.L., & VanderLaan, D.P.
Comparative reproductive output of androphilic and gynephilic males in Samoa. Archives of Sexual Behavior, 43: 363-367.

Vasey, P.L. & VanderLaan, D.P.
Evolutionary perspectives on male androphilia in humans. In: Weekes-Shackelford, V. & Shakelford, T. (eds), Evolutionary Perspectives on Human Sexual Psychology and Behavior, pp. 369-392. NY: Springer.

Terry, L.L. & Vasey, P.L.
Feederism. In: Copes, H. & Forsyth, C.J. (eds.), Encylopedia of Social Deviance, pp. 269-270. Thousand Oaks, CA: Sage.

Vasey, P.L. (2014). In the Manner of a Bad Girl. Atrium: The Report of the Northwestern Medical Humanities and Bioethics Program, 12: 10-11.

Abild, M.L., VanderLaan, D.P. & Vasey, P.L. (2014). Does proximity influence the expression of avuncular tendencies in Canadian androphilic males? Journal of Cognition and Culture, 14: 41-63.

Vasey, P.L., Parker, J.L., & VanderLaan, D.P. (2014). Comparative reproductive output of androphilic and gynephilic males in Samoa. Archives of Sexual Behavior, 43: 363-367.


2013

VanderLaan, D.P., Ren, Z. & Vasey, P.L. (2013). Male androphilia in the ancestral environment: An ethnological analysis. Human Nature, 24: 375-401.

Dixson, B., Vasey, P. & Brooks, R. (2013). The evolution of the human beard. Journal of Comparative Human Biology 64: 146.

Gunst, N., Leca, J-B, & Vasey, P.L. (2013). Development of heterosexual and socio-sexual mounting in free-ranging juvenile male Japanese macaques (Macaca fuscata). Behaviour, 150: 1225-1254.

Abild, M.L, VanderLaan, D.P. & Vasey, P.L. (2013). No evidence for treating friends' children like kin in Canadian androphilic men. Journal of Sex Research, 50: 697-703.

Vasey, P.L. & Abild, M. (2013). A Billion Wicked Thoughts: What the Internet tells us about sexual relationships. Archives of Sexual Behavior, 42: 1101-1103.

Dawson, S. J., Lalumière, M. L., Allen, S. W., Vasey, P. L., & Suschinsky, K.D. (2013). Can habituation of sexual responses be elicited in men and women when attentional commitment is maintained? Canadian Journal of Behavioural Science, 45:274-285.

VanderLaan, D.P., Forrester, D.L., Petterson, LJ. & Vasey, P. L. (2013). The prevalence of fa'afafine relatives among Samoan men and fa'afafine. Archives of Sexual Behavior, 42: 353-359.

VanderLaan, D.P., Vokey, J.R. & Vasey, P.L. (2013). Is male androphilia familial in non-Western cultures? The case of a Samoan village. Archives of Sexual Behavior, 42: 361-370.

VanderLaan, D.P. & Vasey, P. L. (2013). Birth order and avuncular tendencies in Samoan men and fa'afafine. Archives of Sexual Behavior, 42: 371-379.


2012

Dixson, B.J. & Vasey, P.L. (2012). Sexual selection and the evolution of the beard: A cross-cultural study. Behavioral Ecology, 23: 481-490.

VanderLaan, D.P. & Vasey, P. L. (2012). Relationship status and elevated avuncularity in Samoan fa'afafine. Personal Relationships,19: 326-339.

VanderLaan, D.P., Forrester, D.L., Petterson, L.J, & Vasey, P. L. (2012). Offspring production among the extended relatives of Samoan men and fa'afafine. PLoS ONE 7(4): e36088. doi: 101371/journal.pone.0036088

Vasey, P.L. & Lalumière, M.L. (2012). The Puzzle of Sexual Orientation: What is it and how does it work? Archives of Sexual Behavior, 41: 11-12.

Terry, L.L., Suschinsky, K.D., Lalumière, M.L. & Vasey, P.L. (2012). Feederism: An exaggeration of a normative mate selection strategy. Archives of Sexual Behavior, 41: 249-260.

Vasey, P.L. & VanderLaan, D.P. (2012). Male sexual orientation and avuncularity in Japan: Implications for the Kin Selection Hypothesis. Archives of Sexual Behavior, 41: 209-215.

Leca, J.B., Huffman, M.J., & Vasey, P.L. (2012). The Monkeys of Stormy Mountain: Over Half a Century of Research on the Arashiyama Macaques. Cambridge: Cambridge University Press.

Leca, J.B., Huffman, M.A, & Vasey, P.L. (2012) Introduction. In: Leca, J.B., Huffman, M.J., & Vasey, P.L. (eds.). The Monkeys of Stormy Mountain: Over Half a Century of Research on the Arashiyama Macaques, pp. 1-10. Cambridge: Cambridge University Press.

Huffman, M.A., Fedigan, L.M. & Vasey, P.L. (2012). A brief historical time-line of research on the Arashiyama macaques. In: Leca, J.B., Huffman, M.J., & Vasey, P.L. (eds.). The Monkeys of Stormy Mountain: Over Half a Century of Research on the Arashiyama Macaques, pp. 13-27. Cambridge: Cambridge University Press.

Russon, A.E. & Vasey, P.L. Eye covering play in Japanese macaques and orangutans. In: Leca, J.B., Huffman, M.J., & Vasey, P.L. (eds.). The Monkeys of Stormy Mountain: Over Half a Century of Research on the Arashiyama Macaques p. 293. Cambridge: Cambridge University Press.

VanderLaan, D.P., Pellis, S. & Vasey, P.L. A theoretical model of the development and evolution of non-conceptive mounting behavior in Japanese macaques. In: Leca, J.B., Huffman, M.J., & Vasey, P.L. (eds.). The Monkeys of Stormy Mountain: Over Half a Century of Research on the Arashiyama Macaques, pp. 186-203. Cambridge: Cambridge University Press.

Vasey, P.L. & VanderLaan, D.P. (2012). Is female homosexual behaviour in Japanese macaque truly sexual? In: Leca, J.B., Huffman, M.J., & Vasey, P.L. (eds.). The Monkeys of Stormy Mountain: Over Half a Century of Research on the Arashiyama Macaques, pp. 153-172. Cambridge: Cambridge University Press.


2011

Dixson, B.J., Vasey, P.L. & Sagata, K., Sibanda, N., Linklater, W.L. & Dixson, A.F. (2011). Male preferences for female breast morphology in New Zealand, Samoa, and the Highlands of Papua New Guinea. Archives of Sexual Behavior. 40: 1271-1279.

Forrester, D.L., VanderLaan, D.P., Parker, J.L. & Vasey, P.L (2011). Male sexual orientation and avuncularity in Canada: Implications for the Kin Selection Hypothesis. Journal of Culture and Cognition, 11: 339-352.

Terry, L.L. & Vasey, P.L. (2011). A case report of feederism in a women. Archives of Sexual Behavior, 40: 639-645.

VanderLaan, D. P., Gothreau, L., Bartlett, N.H., & Vasey, P.L. (2011). Recalled separation anxiety and gender atypicality in childhood: A study of Canadian heterosexual and homosexual men and women. Archives of Sexual Behavior, 40: 1233-1240.

VanderLaan, D. P., Gothreau, L., Bartlett, N.H. & Vasey, P.L. (2011). Separation anxiety in feminine boys: Pathological or prosocial? Journal of Gay and Lesbian Mental Health, 15: 1-16.

VanderLaan, D.P. & Vasey, P.L. (2011). Male sexual orientation in Independent Samoa: Evidence for fraternal birth order and maternal fecundity effects. Archives of Sexual Behavior, 40: 495-503.

Vasey, P.L. & Forrester, D.L. (2001). Sexual Selection and the Evolution of Human Mating Systems. Archives of Sexual Behavior 40: 1333-1339.

Vasey, P. L., VanderLaan, D.P., Gothreau, L., &, Bartlett, N. H. (2011). Traits of separation anxiety in childhood: A comparison of Samoan men, women and fa'afafine. Archives of Sexual Behavior, 40: 511-517.

In The Media

Print (Selected):

2015 Feeder fetishes: The world of erotic eating and weight gain. Sex & Psychology.

2015 Sexual orientation is more complex than straight, gay and bisexual. Globe & Mail.

2015 What makes people gay? Boston Globe.

2014 The evolutionary puzzle of homosexuality. BBC News Magazine.

2013 Transgendered showed evolutionary benefits in ancestral societies. Time.

2013 The old way to be gay? Pacific Standard.

2013 Meet the Feeders: Getting off on Getting Fat. Scientific American.

2013 Beard envy. Calgary Avenue.

2010 Eleven Ways to Feel Beautiful. O, The Oprah Magazine (January).

2010 Can animals be gay? New York Times (April).

2010 Gays make great uncles: Maybe that's why they are still among us. Los Angeles Times (February).

2009 Good Friendships. Allure (December)

2009 Monkey Sex Observer. Popular Science (February).

2007 Born Gay? Discover (June).



Television (Selected):

The Nature of Things (CBC) (2013)

National Geographic's Ultimate Explorer (2004)

Discovery Channel (2000, 2003, 2005)


Radio (Selected):

2015 Interview on Naked Scientist Podcast

2015 Interview on People Behind the Science Podcast.

2014 Interviews on Canadian Broadcasting Corporation (CBC) Radio

2013 Interview on Canadian Broadcasting Corporation (CBC) Radio Podcast

2012 Interview on WLIM Radio, Lansing, MI, USA.

2012 Interview on Canadian Broadcasting Corporation (CBC) Radio

2010 Interview Wright on the Edge (Washington, DC)

2010 Interview National Public Radio (Southern California)

2010 Interview on CKNW Radio (Vancouver)

2008 Interview on Canadian Broadcasting Corporation (CBC) Radio

Research Interests

comparative cross-cultural and cross-species research, sexual orientation, sex differences, evolution

Current Research and Creative Activity

TitleLocationGrant InformationPrincipal InvestigatorCo Researchers
Identification of genes influencing male sexual orientation on a Polynesian island Samoa Canadian Institute for Health Research, 2010-2011.

Paul L. Vasey, University of Lethbridge
The biopsychology of non-conceptive sex Samoa, Japan, Canada Natural Sciences and Engineering Research Council of Canada, 2010-2015.

Paul L. Vasey, University of Lethbridge
The Puzzle of Sexual Orientation: What is it and how does it work? Canada Social Sciences and Humanities Research Council of Canada Aid to Research Workshops and Conferences in Canada.

Paul L. Vasey & Martin Lalumière

Previous Research

TitleGrant AgencyCompletion Date
The development and evolution of female homosexual behaviour in Japanese macaques Fonds pour la Formation de Chercheurs et l'Aide à la Recherche Postdoctoral Fellowship 2000
The development and evolution of female homosexual behaviour in Japanese macaques L.S.B. Leakey Foundation General Research Grant 2002
The development and evolution of female homosexual behaviour in Japanese macaques Natural Scienes & Engineering Research Council of Canada (NSERC) 2005
The biopsychology of non-conceptive sex Natural Sciences and Engineering Research Council of Canada 2005-2009
The neuroethology of female homosexual behavior in Japanese macaques Natural Sciences and Engineering Research Council of Canada 2001-2004
Female-female mounting in Japanese macaques L.S.B. Leakey Foundation General Research Grant
Female homosexual behaviour in Japnaese macaques Fonds pour la Formation de Chercheurs et l'Aide à la Recherche Postdoctoral 1999-2001


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