Abstract
The present study examined cardiovascular correlates of expression of, and exposure to, naturally occurring behavioral dominance and hostility during dyadic social interaction. Unacquainted men and women undergraduates participated in three mixed-gender interactions with the same partner while their blood pressure and heart rate were assessed. Videotaped records of the interactions were coded for behavioral dominance and hostility. Exposure effects were apparent for women's systolic blood pressure and men's heart rate, with significantly greater reactivity shown by participants whose partners exhibited more dominance or hostility, respectively. Also, women's expression of dominance was positively and significantly associated with their heart rate reactivity. In addition to providing further evidence that emotion-related features of the social environment contribute to cardiovascular reactivity, these results illustrate that dominance merits attention as a correlate of cardiac stress reactivity, independent of hostility.
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