ABSTRACT
Despite folk wisdom about the role of testosterone in the promotion of human aggression, evidence suggests a relatively weak and inconsistent link between individual differences in baseline testosterone concentrations and aggressive behaviour in people. Nevertheless, a growing body of work suggests that testosterone concentrations change rapidly in the context of human social interactions, and that such acute changes in testosterone concentrations may be more relevant to our understanding of human aggression. In addition, recent evidence highlights the important role that individual differences in personality traits and variation in social context play in moderating the effect of testosterone on human aggression. In this chapter, we provide a review of the bidirectional link between testosterone and human behaviour, and suggest directions for future research.
