Men's testosterone may be an
important physiological mechanism mediating motivational and behavioral aspects
of the mating/parenting trade-off not only over time but also in terms of
stable differences between mating-oriented and parenting-oriented individuals.
In this study, we tested the hypothesis that self-reported interest in babies
is inversely related to testosterone reactivity to cues of short-term mating
among heterosexual young men.
Among 100 participants, interest in babies was
related to a slow life-history strategy, as assessed by the Mini-K
questionnaire, and negatively related to testosterone responses to an erotic
video. Interest in babies was not associated with baseline testosterone levels
or with testosterone reactivity to nonsexual social stimuli.
These results
provide the first evidence that differential testosterone reactivity to sexual
stimuli may be an important aspect of individual differences in life-history
strategies among human males.
Purchase full article at:
- 1Department of Psychology, Wayne State University.
- 2Institute for Mind and Biology, The University of Chicago.
- 3Institute for Mind and Biology, The University of Chicago dario@uchicago.edu.
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