The usefulness of distinguishing types of aggression by functionn

Martı́n Ramı́rez Problems of aggression and violence are widespread and affect interpersonal relation-ships, inter-group interac-tions and society in general. It is therefore important to better understand human aggression by carrying out more in-depth studies of the complex dynamics that exist between biological variables (genes, biochemistry, neural circuits), personality factors and environmental circum-stances that influence the development and expression of aggression (Nelson and Trainor 2007). To better understand a phenomenon – aggression and violence, for example – we first need to formulate a working definition that is as precise as possible and estab-lishes a consensus on what is under discussion; on the differences that may exist between violence and ag-gression; their causes and mechanisms, and their possi-ble consequences. For exam-ple, it should be decided whether violence is comple-tely unavoidable or, to the contrary, avoidable, as declared in the Seville State-ment on Violence (Adams et al. 1986) adopted by th