Deer rut in the spring, when the testes in pouring out testosterone. They detect the presence of male using vomernasal nerve 2. Destruction of this nerve abolishes intermale aggression 3. Suggests pheromones associated with Testosterone are important 4. In human adults the role of hormones are less clear.
Men commit more violent crime than women.
However on measures of aggression, individuals may be high or low without any difference in T levels a. comparing T level of prisoners in jail for violent crime to that of nonviolent prisoners or the general public shows some positive correlation between T level and nature of crime and general antisocial activities 1. T may be response to aggressive encounters. A small percentage of body builders who take enormous amounts of synthetic androgens develop violent syndromes. Conversely, castration or anti-androgen administration to humans is not associated with a consistent decrease in aggression. Hedonism and aggression.