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Research articles
Research articles
Sex, drugs and moral goals: reproductive strategies and views about recreational drugs
Published:16 June 2010https://doi.org/10.1098/rspb.2010.0608
Abstract
Humans, unlike most other species, show intense interest in the activities of conspecifics, even when the activities in question pose no obvious fitness threat or opportunity. Here, we investigate one content domain in which people show substantial interest, the use of drugs for non-medical purposes. Drawing from two subject populations—one undergraduate and one Internet-based—we look at the relationships among (i) abstract political commitments; (ii) attitudes about sexuality; and (iii) views surrounding recreational drugs. Whereas some theories suggest that drug views are best understood as the result of abstract political ideology, we suggest that these views can be better understood in the context of reproductive strategy. We show that, as predicted by a strategic construal, drug attitudes are best predicted by sexual items rather than abstract political commitments and, further, that the relationship between factors such as political ideology and drugs, while positive, are reduced to zero or nearly zero when items assessing sexuality are controlled for. We conclude that considering morality from the standpoint of strategic interests is a potentially useful way to understand why humans care about third party behaviour.
References
-
Bardes B. A.& Oldendick R. W. . 2003 Public opinion: measuring the American mind, 2nd edn. Belmont, CA: Thomson Wadsworth. Google Scholar -
Buss D. M.& Schmitt D. P. . 1993 Sexual strategies theory: an evolutionary perspective on human mating. Psychol. Rev. 100, 204–232. (doi:10.1037/0033-295X.100.2.204). Crossref, PubMed, ISI, Google Scholar -
Caplan B. . 2007 The myth of the rational voter. Princeton, NJ: Princeton University Press. Google Scholar -
Conover P. J.& Feldman S. . 1981 The origins and meaning of liberal-conservative self-identification. Am. J. Polit. Sci. 25, 617–645. (doi:10.2307/2110756). Crossref, ISI, Google Scholar -
Corbett M.& Corbett J. M. . 1999 Politics and religion in the United States. New York, NY: Garland Publishing. Google Scholar -
DeScioli P.& Kurzban R. . 2009a Mysteries of morality. Cognition 112, 281–299. (doi:10.1016/j.cognition.2009.05.008). Crossref, PubMed, ISI, Google Scholar -
DeScioli P.& Kurzban R. . 2009b The alliance hypothesis for human friendship. PLoS ONE 4, e5802. (doi:10.1371/journal.pone.0005802). Crossref, PubMed, ISI, Google Scholar -
de Waal F. . 1996 Good natured: the evolution of right and wrong in humans and other animals. Cambridge, MA: Harvard University Press. Google Scholar -
Erikson R. S.& Tedin K. L. . 2005 American public opinion, 7th edn. New York, NY: Pearson Longman. Google Scholar -
Fessler D. M. T.& Navarrete C. D. . 2004 Third-party attitudes toward sibling incest: evidence for Westermarck's hypotheses. Evol. Hum. Behav. 25, 277–294. ISI, Google Scholar -
Flanigan W. H.& Zingale N. H. . 2002 Political behavior of the American electorate, 10th edn. Washington, DC: CQ Press. Google Scholar -
Gangestad S. W.& Simpson J. A. . 2000 On the evolutionary psychology of human mating: trade-offs and strategic pluralism. Behav. Brain Sci. 23, 573–587. (doi:10.1017/S0140525X0000337X). Crossref, PubMed, ISI, Google Scholar -
Graham J., Haidt J.& Nosek B. . 2009 Liberals and conservatives use different sets of moral foundations. J. Person. Soc. Psychol. 96, 1029–1046. (doi:10.1037/a0015141). Crossref, PubMed, ISI, Google Scholar -
Haidt J.& Joseph C. . 2004 Intuitive ethics: how innately prepared intuitions generate culturally variable virtues. Daedalus Fall, 55–66. Crossref, ISI, Google Scholar -
Haidt J.& Joseph C. . 2007 The moral mind: How 5 sets of innate moral intuitions guide the development of many culture-specific virtues, and perhaps even modules. The innate mind, vol. 3 (eds, Carruthers P., Laurence S.& Stich S. ), pp. 367–391. New York, NY: Oxford University Press. Google Scholar -
Haidt J.& Kesebir S. . 2010 Morality. Handbook of social psychology (eds, Fiske S., Gilbert D.& Lindzey G. ), 5th edn, pp. 797–832. Hoboken, NJ: Wiley. Google Scholar -
Jacoby W. G. . 2002 Core values and political attitudes. Understand public opinion, 2nd edn (eds, Norrander B.& Wilcox C. ), pp. 177–201. Washington, DC: CQ Press. Google Scholar -
Janda K., Berry J. M.& Goldman J. . 2002 The challenge of democracy, 7th edn. Boston, MA: Houghton Mifflin Company. Google Scholar -
Kinder D. R. . 1998 Opinion and action in the realm of politics. The handbook of social psychology, vol. 2 (eds, Gilbert D. T., Fiske S. T.& Lindzey G. ), pp. 778–867. New York, NY: Oxford University Press. Google Scholar -
Krebs D. L.& Janicki M. . 2004 Biological foundations of moral norms. Psychological foundations of culture (eds, Schaller M.& Crandall C. ), pp. 125–148. Mahwah, NJ: Erlbaum. Google Scholar -
Kurzban R. In press. Why everyone (else) is a hypocrite: evolution and the modular mind. Princeton, NJ: Princeton University Press. Google Scholar -
Lammers C., Ireland M., Resnick M.& Blum R. . 2000 Influences on adolescents' decision to postpone onset of sexual intercourse: a survival analysis of virginity among youths aged 13 to 18 years. J. Adolesc. Health 26, 42–48. (doi:10.1016/S1054-139X(99)00041-5). Crossref, PubMed, ISI, Google Scholar -
Li Y., Cohen A., Weeden J.& Kenrick D. . 2009 Mating competitors increase religious beliefs. J. Exp. Soc. Psychol. 48, 428–431. (doi:10.1016/j.jesp.2009.10.017). Google Scholar -
Lieberman D. . 2007 Moral sentiments relating to incest: discerning adaptations from by–products. Moral psychology. Volume 1: the evolution of morality (ed.& Sinnott-Armstrong W. ), pp. 165–208. Cambridge, MA: MIT Press. Google Scholar -
Lieberman D., Tooby J.& Cosmides L. . 2003 Does morality have a biological basis? An empirical test of the factors governing moral sentiments regarding incest. Proc. R. Soc. Lond. B 270, 819–826. (doi:10.1098/rspb.2002.2290). Link, ISI, Google Scholar -
Lieberman D., Tooby J.& Cosmides L. . 2007 The architecture of human kin detection. Nature 445, 727–731. (doi:10.1038/nature05510). Crossref, PubMed, ISI, Google Scholar -
McCullough M. E., Enders C. K., Brion S. L.& Jain A. R. . 2005 The varieties of religious development in adulthood: a longitudinal investigation of religion and rational choice. J. Personal. Soc. Psychol. 89, 78–89. (doi:10.1037/0022-3514.89.1.78). Crossref, PubMed, ISI, Google Scholar -
Pratto F., Sidanius J., Stallworth L. M.& Malle B. F. . 1994 Social dominance orientation: a personality variable predicting social and political attitudes. J. Personal. Soc. Psychol. 67, 741–763. (doi:10.1037/0022-3514.67.4.741). Crossref, ISI, Google Scholar -
Rammstedt B.& John O. P. . 2007 Measuring personality in one minute or less: a 10-item short version of the Big Five Inventory in English and German. J. Res. Person. 41, 203–212. (doi:10.1016/j.jrp.2006.02.001). Crossref, ISI, Google Scholar -
Rawls J. . 1971 A theory of justice. Cambridge, MA: Harvard University Press. Crossref, Google Scholar -
Robinson P.& Kurzban R. . 2007 Concordance and conflict in intuitions of justice. Minn. Law Rev. 91, 1829–1907. ISI, Google Scholar -
Robinson P., Kurzban R.& Jones O. D. . 2008 The origins of shared intuitions of justice. Vanderbilt Law Rev. 60, 1633–1688. ISI, Google Scholar -
Saad L. . 2009 U.S. support for legalizing marijuana reaches new high. Gallup, See http://www.gallup.com/poll/123728/u.s.-support-legalizing-marijuana-reaches-new-high.aspx (accessed 19 October). Google Scholar -
Sears D. O.& Funk C. L. . 1990 Self-interest in Americans' political opinions. Beyond self-interest (ed.& Mansbridge J. J. ), pp. 147–170. Chicago, IL: University of Chicago Press. Google Scholar -
Sears D. O.& Levy S. . 2003 Childhood and adult political development. Oxford handbook of political psychology (eds, Sears D. O., Huddy L.& Jervis R. ), pp. 60–109. Oxford, UK: Oxford University Press. Google Scholar -
Shuster S. M. . 2010 Alternative mating strategies. Evolutionary behavioral ecology (eds, Westneat D. F.& Fox C. W. ), pp. 434–450. New York, NY: Oxford University Press. Google Scholar -
Simpson J. A.& Gangestad S. W. . 1991 Individual differences in sociosexuality: evidence for convergent and discriminant validity. J. Personal. Soc. Psychol. 60, 870–883. (doi:10.1037/0022-3514.60.6.870). Crossref, PubMed, ISI, Google Scholar -
Tooby J.& Cosmides L. . 1992 The psychological foundations of culture. The adapted mind (eds, Barkow J. H., Cosmides L.& Tooby J. ), pp. 19–136. New York: Oxford University Press. Google Scholar -
Tybur J. M., Lieberman D.& Griskevicius V. . 2009 Microbes, mating, and morality: individual differences in three functional domains of disgust. J. Personal. Soc. Psychol. 97, 103–122. (doi:10.1037/a0015474). Crossref, PubMed, ISI, Google Scholar -
Weeden J.& Sabini J. . 2007 Subjective and objective measures of attractiveness and their relation to sexual behavior and sexual attitudes in university students. Arch. Sex. Behav. 36, 79–88. (doi:10.1007/s10508-006-9075-x). Crossref, PubMed, ISI, Google Scholar -
Weeden J., Cohen A. B.& Kenrick D. T. . 2008 Religious attendance as reproductive support. Evol. Hum. Behav. 29, 327–334. (doi:10.1016/j.evolhumbehav.2008.03.004). Crossref, PubMed, ISI, Google Scholar -
Whitaker D. J., Miller K. S.& Clark L. F. . 2000 Reconceptualizing adolescent sexual behavior: beyond did they or didn't they? Fam. Plann. Perspect. 32, 111–117. (doi:10.2307/2648159). Crossref, PubMed, Google Scholar
