Empirical tests of sexual selection theory: Predictions of sex differences in onset, intensity, and time course of sexual arousal

Abstract

An evolutionary model of sexual behavior was used to generate predictions about sex differences in sexual arousal. Survey instruments were used to test these predictions with 388 adolescents, aged 12-18, from varying socioeconomic strata and geographic regions. Boys reported that their first arousal occurred at the start of puberty or before, usually in response to a visual stimulus, whereas girls generally reported first arousal as occurring 2-3 or more years after puberty, within a social/romantic context. The modal boy reported sexual arousal as occurring several times daily, the modal girl once or twice a week. Boys reported their arousal to be more discriminable, of greater intensity, and more distracting than the girls'. The sexes differed in attitudes related to sexual behavior. However, when reporting emotions and feelings coterminous with sexual arousal, the sexes did not differ. Retrospective college samples of 262 students from West Coast colleges replicated the adolescent data. A survey of 280 East Coast college students found that women's sexual arousal was significantly more partner-dependent than men's. Results were interpreted as supporting evolutionary models of sex differences in sexuality.

Sexual Fantasies and Viewing Times Across the Menstrual Cycle: A Diary Study

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“…We now know that women, almost universally, experience some form of sexual fantasy (Brown and Hart 1977;Crepault et al 1976;Davidson and Hoffman 1986;Ellis and Symons 1990). Men are more likely to report more frequent fantasies than women and to believe that it is more permissible for them to fantasize; yet, men and women report similar levels of arousal, as well as positive and negative feelings related to their experiences with fantasy (Cado and Leitenberg 1990;Ellis and Symons 1990;Knoth et al 1988;Robinson and Calhoun 1982;Sue 1979). It is important to note this shift in discourse in part to recognize that perspectives on the meaning and utility of sexuality and fantasy are not independent from the relevant cultural and historical context.…”

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