Knowing,feeling, and liking a psychophysiological study of attraction

Skin conductance and heart rate were recorded during verbal exchanges in which subjects were either agreed or disagreed with on a variety of issues. The manipulation of attitude similarity had significant effects on interpersonal attraction, perceived competence, and skin conductance, but not on heart rate. Disagreement produced higher skin conductance than agreement, and speaking was more arousing than listening. The correlations between arousal and attraction showed that heightened arousal was associated with both attraction toward agreers and dislike toward disagreers. As predicted, the linear relationship between attitude similarity and attraction increased in slope (0.00, 3.75, 8.75) with increasing levels of conductance (low, medium, high). The failure of subjects to prefer agreers to disagreers under conditions of low arousal suggests that information without affect does not influence attraction.