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Sex, drugs and moral goals: Penn study of reproductive strategies and recreational drug use
Date:6/15/2010

predictions about people's views on drugs in fact become quite a bit better."

From a theoretical perspective, the study also concludes that considering morality from the standpoint of strategic reproductive interests is a potentially useful way to understand why humans care about third-party behavior.

According to the researchers' evolutionary model, people develop complex differences in their sexual and reproductive strategies. One key difference that creates strategic conflict arises in people's orientations towards casual sexual activity. The relationships of people following a more committed, monogamous reproductive strategy are put at greater risk when casual sex is prevalent. On the other hand, people pursuing a less committed lifestyle seek to avoid having their choices moralized, forbidden and punished.

The researchers cite prior work showing that recreational drug usage is often associated with promiscuity. The results of the study imply that attitudes against recreational drugs are part of a larger attempt to advance the cause of committed, monogamous reproductive strategies.

"Condemnation of drug usage might be best understood in the context of strategic dynamics, with individuals influencing moral rules in a way that favors their own competitive reproductive strategies," Kurzban said. "We expect that this relationship between sexual strategy and moral stances will occur in other areas as well, such as attitudes toward prostitution, sexual education or abortion."

The research team analyzed questionnaires from 516 undergraduate students from the University of Central Florida and 471 individuals recruited from a Web-based recruitment site, Amazon's Mechanical Turk, or Mturk.

Participants reported their overall liberal/conservative political identification, rated their support or opposition to a number of current political issues and answered questions about their personalities, disgust sensiti
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Contact: Jordan Reese
jreese@upenn.edu
215-573-6604
University of Pennsylvania
Source:Eurekalert

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